ted w. simon, ph.d., dabt - jurispro.com · ted simon, ph.d., dabt page 3 of 15 june, 2016 •...
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June,2016
TedW.Simon,Ph.D.,DABT Contact4184JohnstonRoad email:[email protected] Winston,GAUSA30187 website:http://www.tedsimon-toxicology.commobile:(770)359-9807SummaryAwardwinningtoxicologistandscientist.10+years’experienceasatoxicologistemployedbytheEnvironmentalProtectionAgency(EPA).ServedasEPA’sseniortoxicologistinthewastemanagementdivisionworkingonriskandsoilcleanup.Expertiseintoxicology,riskassessment,mathematicalmodeling,statistics,neuroscience,andenvironmental/ecologicalhealthissues.Extensivenationalandinternationalpublicspeakingexperience.15+yearsteachingexperience.Wellpublished,includingauthoroftextbookontoxicologyandenvironmentalriskassessment.Experiencedexpertwitnessonissuesincludingenvironmentalrisk,drugandalcoholcases,DUI,accidentalpoisoning,andintellectualproperty.10+yearsconsultingexperience.Specialinterestandexpertiseindioxin-likechemicalsandpolychlorinatedbiphenyls(PCBs).ProfessionalCertification1994- DiplomateoftheAmericanBoardofToxicology(DABT) EmploymentHistory2004-present Principal,TedSimon,LLC,Winston,GA2006-present AdjunctProfessor,EnvironmentalHealthScience,CollegeofPublicHealth,UniversityofGeorgia,
Athens,GA1996-2006 Toxicologist,USEnvironmentalProtectionAgency,Region4,Atlanta,GA2003 Instructor,DepartmentofBiology,GeorgiaStateUniversity,Atlanta,GA2001-present Instructor,DepartmentofEnvironmentalHealthScience,UniversityofGeorgia,Athens,GA1996 EnvironmentalHealthScientist,AgencyforToxicSubstancesandDiseaseRegistry/Centersfor
DiseaseControl,Atlanta,GA1994-1996 Toxicologist,USEnvironmentalProtectionAgency,Region4,Atlanta,GA1993-1994 ProjectScientist,ManTechEnvironmentalInc.,USEPARegion4,Atlanta,GA1993 AssistantProfessorofBiology,LifeCollege,Marietta,GA1991-1993 GeorgiaStateUniversity,PostdoctoralResearchAssociate,Atlanta,GA1989-1991 EmoryUniversity,PostdoctoralResearchFellow,Atlanta,GA1982-1988 GeorgiaStateUniversity,Research/TeachingAssistant,Atlanta,GAPublicationsTEXTBOOK • SimonT.EnvironmentalRiskAssessment:AToxicologicalApproach.(2014)(ISBN978-1466598294)ATextbookfor
GraduateRiskAssessmentCourses,CRCPress,February2014.
PEER-REVIEWED JOURNAL ARTICLES • SimonTW,ZhuY,DoursonML,BeckN.(2016)BayesianMethodsforUncertaintyFactorApplicationforDerivationof
ReferenceValues.RegulToxicolPharmacol80:9-24.
• BeckNB,BeckerRA,ErraguntlaN,FarlandWH,GrantRL,GrayG,KirmanC,LakindJS,LewisRJ,NanceP,PottengerLH,SantosSL,ShirleyS,SimonT,DoursonML.(2016)Approachesfordescribingandcommunicatingoveralluncertaintyintoxicitycharacterizations:U.S.EnvironmentalProtectionAgency'sIntegratedRiskInformationSystem(IRIS)asacasestudy.EnvironInt89-90:110-128.
• BeckerRT,PatlewiczG,SimonTW,RowlandsJC,BudinskyRA(2015)Theadverseoutcomepathwayforrodentlivertumorpromotionbysustainedactivationofthearylhydrocarbonreceptor.RegulToxicolPharmacol73:172-90.
• SimonTW,BudinskyRA,RowlandsJC.(2015)AModelforArylHydrocarbonReceptor-ActivatedGeneExpressionShowsPotencyandEfficacyChangesandPredictsSquelchingduetoCompetitionforTranscriptionCo-activators.PLOSONE,10(6):e0127952
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• BeckerRA,FriedmanKP,SimonTW,MartyMS,PatlewiczG,RowlandsJC.(2014)Anexposure:activityprofilingmethodforinterpretinghigh-throughputscreeningdataforestrogenicactivity-Proofofconcept.RegulToxicolPharmacol71:398-408.
• PatlewiczG,SimonTW,RowlandsJC,BudinskyRA,BeckerRA.(2015)Proposingascientificconfidenceframeworktohelpsupporttheapplicationofadverseoutcomepathwaysforregulatorypurposes.RegulToxicolPharmacol71:463-477.
• SimonTW,SimonsSSJr.,PrestonRJ,BoobisAR,CohenSM,DoerrerNG,Fenner-CrispPA,McMullinT,McQueenCA,RowlandsJC(2014)TheUseofModeofActionInformationinRiskAssessment:QuantitativeKeyEvents/Dose-ResponseFramework(Q-KEDRF)forModelingtheDose-ResponseforKeyEvents.CritRevToxicol44Suppl3:17-43.
• Budinsky,RA,SchrenkD,SimonT,VandenBergM,ReichardJF,SilkworthJB,AylwardLL,BrixA,KaminskiN,PerdewG,StarrTB,WalkerNJ,RowlandsJC(2014)Modeofactionanddose-responseframeworkanalysisforreceptor-mediatedtoxicity:thearylhydrocarbonreceptorasacasestudy.CritRevToxicol44(1):83-119
• PatlewiczG,SimonT,GoyakK,PhillipsRD,RowlandsJC,SeidelSD,BeckerRA.(2013)UseandValidationofHT/HCAssaystosupport21stcenturytoxicityevaluations.RegulToxicolPharmacol65(2):259-68.
• StephensML,AndersenM,BeckerRA,BettsK,BoekleheideK,CarneyE,ChapinR,DevlinD,FitzpatrickS,FowleJR,HarlowP,HartungT,HoffmannS,HolsappleM,JacobsA,JudsonR,NaidenkoO,PastoorT,PatlewiczG,RowanA,SchererR,ShakihR,SimonT,WolfD,ZurloJ.(2013)WorkshopReport:Evidence-basedToxicologyforthe21stCentury:OpportunitiesandChallenges.ALTEX30:74-103.
• PatlewiczG,SimonT,GoyakK,PhillipsRD,Rowlands,JCR,SeidelSandBeckerRA(2013)UseandValidationofHT/HCAssaystoSupport21stCenturyToxicityEvaluations.RegulToxicolPharmacol5:1-7.
• KirmanC,Budinsky,RA,YostL,BakerBF,ZabikJM,RowlandsJC,LongTF,SimonT(2011)DerivationofSoilClean-UpLevelsfor2,3,7,8-Tetrachlorodibenzo-p-dioxin(TCDD)ToxicityEquivalence(TEQD/F)inSoilThroughDeterministicandProbabilisticRiskAssessmentofExposureandToxicity.HumanandEcologicalRiskAssessment17(1):125-158.
• BudinskyRA,LeClyuseEL,FergusonSS,RowlandsJC,SimonT(2010)HumanandRatPrimaryHepatocyteCYP1A1and1A2Inductionwith2,3,7,8-Tetrachlorodibenzo-p-dioxin(TCDD),2,3,7,8-Tetrachlorodibenzofuran(TCDF)and2,3,4,7,8-Pentachlorodibenzofuran(4-PeCDF).ToxicolSci118(1):224-235.
• SimonT(2010)JustWhoisatRisk?TheEthicsofEnvironmentalRegulation.HumExpToxicol30(8):795-819.
• SimonT,Kirman,CR,AylwardLL,BudinskyRA,RowlandsJC(2009)EstimatesofCancerPotencyof2,3,7,8-Tetrachlorodibenzo(p)dioxinusingLinearandNon-linearDose-ResponseModelingandToxicokinetics.ToxicolSci112(2):490-506.
• SimonT,Kirman,CR,AylwardLL,BudinskyRA,RowlandsJC,LongT(2008)EstimatesofCancerPotencyFor2,3,4,7,8-PentachlorodibenzofuranUsingBothNonlinearandLinearApproachs.ToxicolSci106(2):519-537.
• SimonT,BrittJK,JamesRC(2007)DevelopmentofaNeurotoxicEquivalenceSchemeofRelativePotencyforAssessingtheRiskofPCBMixtures.RegulToxicolPharmacol48:148-170.
• SimonTandManningR(2006)DevelopmentofaReferenceDoseforthePersistentCongenersofWeatheredToxaphenebasedoninvivoandinvitroeffectsRelatedtoTumorPromotion.RegulToxicolPharmacol44:268-281.
• SimonT(2000)InDefenseofRiskAssessment:aReplytotheEnvironmentalJusticeMovement’sCritique.HumanandEcologicalRiskAssessment6(4):556-560.
• EnglehardtJD,SimonT(1999)OrderAmidUncertainty.CivilEngineering,AmericanSocietyofCivilEngineers,69(6):8A-13A.
• SimonT(1999)TwoDimensionalMonteCarloSimulationandBeyond:AComparisonofSeveralProbabilisticRiskAssessmentMethodsappliedtoaSuperfundSite.HumanandEcologicalRiskAssessment5(4):823-843.
• SimonT(1997)CombiningPhysiologicallyBasedPharmacokineticModelingwithMonteCarloSimulationtoDeriveanAcuteInhalationGuidanceValueforTrichloroethylene.RegulToxicolPharmacol26:257-270.
• SimonT,BarnesK(1995)OlfactionandPreySearchinthecarnivorousleech,Haemopismarmorata.JExpBiol199:2041-2051.
• SimonT,DerbyCD(1995)MixtureSuppressionwithinhibitionforbinarymixturesfromwholecellpatchclampstudiesofinsituolfactoryreceptorneuronsofthespinylobster.BrainRes678(1-2):213-224.
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• SimonT,Schmidt,J,CalabreseRL(1994)ModulationofHighThresholdTransmissionBetweenHeartInterneuronsoftheMedicinalLeechbyFMRF-NH2.JNeurophysiol71:454-466.
• SimonT,OpdykeCA,CalabreseRL(1992)ModulatoryeffectsofFMRF-NH2ontheoutwardcurrentsandoscillatoryactivityinheartinterneuronsofthemedicinalleech.JNeurosci12(2):525-537.
• SimonT,EdwardsDH(1990)Light-evokedwalkingincrayfish:Behavioralandneuronalresponsestriggeredbythecaudalphotoreceptor.JCompPhysiolA166:745-755
• HersheySJ,SimonT,BasteC(1975)Histochemicallocalizationofcytochromeoxidaseingastricmucosa.JHistochemCytochem4:271-282.
ABSTRACTS • SimonTW,ZhuY,DoursonML,BeckNB.(2016)BayesianMethodsApplication:ProofofConceptandPitfalls.
SocietyofToxicologyAnnualMeeting,NewOrleans,LA
• SimonTW,BeckNB(2015)BayesianMethodsforUncertaintyFactor(UF)Application:ProofofConcept.SocietyofRiskAnalysisAnnualMeeting,T2-A.3,Arlington,VA
• CanadyRA,SimonTW.(2015)DisruptiveArrivalofBigDatatoFoodIntakeAssessment.SocietyofRiskAnalysisAnnualMeeting,M2-H.1,Arlington,VA
• RuizP,SimonT,MumtazM(2014)InterpretingNHANESBiomonitoringData:Dioxins.Abstract96d,TheToxicologist—AnofficialJournaloftheSocietyofToxicology,Volume138,Issue1,March
• BeckerR,SimonT,Patlewicz,G,KennedyS,FarhatA,BudinskyR.(2014)ImprovingTheDevelopmentOfAdverseOutcomePathways:LessonsLearnedFromTheAHRRodentLiverTumorandAHRAvianTeratogenicity/EmbryolethalityAOPs.Abstract2253TheToxicologist—AnofficialJournaloftheSocietyofToxicology,Volume138,Issue1,March
• SimonT.(2014)EvidentiaryStandardsforNeuroactiveandNeurotoxicDrugTesting(2014)Abstract723,TheToxicologist—AnofficialJournaloftheSocietyofToxicology,Volume138,Issue1,March
• BeckerR,PatlewiczG,SimonT,GoyakK,PhillipsR,RowlandsJC,SeidelS.(2013)ValidationofHigh-ThroughputandHigh-Content(HT/HC)AssaystoSupport21stCenturyToxicityEvaluations.Abstract2267.TheToxicologist—AnofficialJournaloftheSocietyofToxicology,Volume132,Issue1,March
• SimonT,StephensM,YangY,ManningR,RowlandsJC,BudinskyRA(2012)Applyingthe“ScienceandDecisions”ConceptualModels”toDioxin.Abstract133.TheToxicologistCD—AnofficialJournaloftheSocietyofToxicology,Volume126,Issue1,March
• Simon,T,RowlandsJC,BudinskyRA(2011)TheToxicEquivalenceFactorfor2,3,7,8-Tetrachlorodibenzofuran(TCDF):ToxicokineticandToxicodynamicConsiderations.OrganohalogenCompounds73:1003-1006.
• SimonT(2010)UsingHumanInVivoAHRActivationasaFunctionalDoseMetricforRiskAssessmentbasedonChloracne,EffectsinKeratinocytesandBackgroundCYPInduction.OrganohalogenCompounds62:582-585.
• SimonT,BudinskyRA,RowlandsJC,AbelTA(2010)Linearvs.NonlinearExtrapolationforDose-ResponseAssessmentofTCDD.OrganohalogenCompounds72:1418-1421.
• HawsL,TachovskyA,StaskalD,AylwardL,BurkhalterB,UrbanJ,SimonT,HarrisM(2010)AnEvaluationoftheInfluenceofDifferentSoilCleanupLevelsontheConcentrationofDioxin-LikeCompoundsinHumanSerum.OrganohalogenCompounds72:1448-1449.
• HarrisM,TachovskyA,StaskalD,AylwardL,BurkhalterB,SimonT(2010)SerumConcentrationsofDioxin-LikeCompoundsinaPopulationofMidlandMichigan:AnEvaluationoftheImpactofSoilExposures.OrganohalogenCompounds72:1442-1443.
• SimonT,GoodrumPE(2010)AComparisonofThreeDifferentMethodsofChildrens’SoilIngestion.TheToxicologist,#1916
• HawsL,TachovskyA,StaskalD,SimonT,BurkhalterK,HarrisMA(2010)EvaluationoftheImpactofSoilExposurestoDioxin-LikeCompoundsonBodyBurdeninaPopulationinMidland,Michigan.TheToxicologist,#1871
• HarrisMA,TachovskyA,StaskalD,SimonT,BurkhalterK,etal.(2010)AssessmentoftheImpactofVariousSoilCleanupLevelsonSerumConcentrationsofDioxin-LikeCompoundsinHumans.TheToxicologist,#1872
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• SimonT(2009)CancerPotencyEstimatesfor2,3,7,8-TCDDdevelopedfromtheNationalToxicologyProgramBioassayResults,TheToxicologist,Program#EA1-2251
• SimonT(2009)WhyHumansareLessSensitivetoPCBsthanRhesusMonkeys,TheToxicologist#EA4-2254
• KirmanC,BudinskyR,YostL,RowlandsC,LongT,SimonT(2008)DevelopmentofaDirectContactCriterion(DCC)for2,3,7,8-TCDDinSoilUsingDeterministicandProbabilisticMethods.OrganohalogenCompounds70:1204-1207.
• KirmanC.,CrouchE,AylwardL,SimonT,BudinskyR,LandenbergerB,LongT(2007)CancerPotencyEstimateFor2,3,4,7,8-Pentachlorodiobenzo(P)Dioxin(4-PeCDF)TheToxicologist,Program#1561,p323.
BOOK CHAPTER • SimonT,EdwardsDH(1990)TheCaudalPhotoreceptor:AMultifunctionalSensoryNeuronmayselectitsOutputsby
SpikeFrequency.InFrontiersinCrustaceanNeurobiology,WieseK,KrenzW-D,TautzJ,ReichertH,MulloneyB(eds.)Birkhauser-Verlag,Basel,Boston,Berlin
Grants,AwardsandHonors2012-15 GrantfromtheDowChemicalCompany.Developmentofamodeloftheeffectsoftheavailabilityof
coregulatorproteinsongenetranscription.2009 HonorableMention,RiskAssessmentSpecialtySectionoftheSocietyofToxicology,bestpaperoftheyear SimonT,Kirman,CR,AylwardLL,BudinskyRA,RowlandsJC(2009)EstimatesofCancerPotencyof2,3,7,8-
Tetrachlorodibenzo(p)dioxinusingLinearandNon-linearDose-ResponseModelingandToxicokinetics.ToxicologicalSciences112(2),490-506.
2005 RecognitionfromtheSouthWireCompanyforinnovativeapproachestoEnvironmentalCleanup2005 EPABronzeMedalforTestimonyintheNormanMayescaseinKnoxville,TNthatledtoadditionalUST
regulationsbeingpassedbytheStateofTennessee2005 EPABronzeMedalforDevelopingGuidanceonMonitoringLandUseControls2002 EPAScienceAchievementAwardforProbabilisticRiskAssessmentGuidance1995 EPABronzeMedalforCommendableService;Forleadershipinsettingtheexampleinself-directedworkteam
managementandinsettingtheexamplein"fast-track"multimediaenvironmentalinvestigationandcleanup1992 EnvironmentalEducationEnterprisesScholarshipinEnvironmentalScience,"PrinciplesofEnvironmental
DrillingandSampling,"AssociationofEngineeringGeologists,Atlanta,GA1992 SpecialAwardfromtheVicePresidentforResearch,GeorgiaStateUniversity,"Evolutionofdifferentprey
choiceandfeedingstrategyintworelatedspecies,"$10001989 NationalResearchServiceAwardF32NS08394-01A1fromNIH-NINCDS"ModulationofIonicChannelsinan
OscillatoryNetwork,EmoryUniversity,$41,0001989 HonorableMention,DonaldB.LindsleyPrizeinBehavioralNeuroscienceforPh.D.Thesis,HonorableMention
forPh.D.thesis,"TheNeuralBasisofLightEvokedWalkinginCrayfish,"SocietyforNeuroscience Education1989 Ph.D.Neurobiology&Behavior,GeorgiaStateUniversity,Atlanta,GA1971 B.A.Biology,MiddleburyCollege,Middlebury,VTProfessionalMemberships• 1995- SocietyofToxicology• 1997– SocietyforRiskAnalysis• 1984–1993 SocietyforNeuroscienceInvitedLectures• 2016 “BayesianMethodsforApplicationofUncertaintyFactors,”SocietyofToxicologyAnnualMeeting,New
Orleans,LA
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• 2016 “QuantitativePredictionofPhenotypicChangefromHighThroughputAssayResults,”EPAWorkshoponInVitrotoInVivoExtrapolation,February,ResearchTrianglePark,NC
• 2015 “BayesianMethodsforApplicationofUncertaintyFactors,”SocietyforRiskAnalysisAnnualMeeting,Arlington,VA
• 2015 “ANewLookatToxicityFactorsforToxaphenerelatedtoFishConsumptionintheGreatLakes,”PresentationtoTheGreatLakesConsortiumforFishAdvisories
• 2014 “QuantitativeKeyEventRelationshipsintheAdverseOutcomePathway(AOP)forAHR-MediatedRodentLiverTumorPromotionQuantitativeKeyEventRelationshipsintheAdverseOutcomePathway(AOP)forAHR-MediatedRodentLiverTumorPromotion,”InvitedSpeakeratameetingsponsoredbytheNationalInstituteofEnvironmentalHealthSciencesheldinBethesda,MD
• 2014 “EvidentiaryStandardsforNeuroactiveandNeurotoxicDrugTesting”InvitedSpeakerinaworkshopatthe2014meetingoftheSocietyofToxicology.
• 2013 “CurrentOutlookforImprovingUncertaintyandRiskCommunication.”InvitedSpeakeratUnderstandingandCommunicatingUncertaintyinHazardAssessment,aworkshopsponsoredbytheCenterforAdvancingRiskAssessmentScienceandPolicy(ARASP)oftheAmericanChemistryCouncil(ACC).
• 2013 FourLecturesinGraduateLevelEnvironmentalRiskAssessmentandRiskCommunication,UniversityofGeorgia,Athens,GA,Spring2013
• 2012 FourLecturesinGraduateLevelEnvironmentalRiskAssessmentandRiskCommunication,UniversityofGeorgia,Athens,GA,Spring2012
• 2011 “TheToxicEquivalenceFactorfor2,3,7,8-Tetrachlorodibenzofuran:Chemical-AdjustmentFactorsforAddressingTEFUncertainty.”Dioxin2011,Brussels,Belgium,August23,2011
• 2010 “Linearvs.NonlinearExtrapolationforDose-ResponseAssessmentofTCDD,”Dioxin2010,SanAntonio,TX,September15
• 2010 “UsingHumaninvivoAHRActivationasaFunctionalDoseMetricforRiskAssessmentBasedonChloracne,EffectsinKeratinocytesandBackgroundCYPInduction,”Dioxin2010,SanAntonio,TX,September13
• 2009 “DoseThresholdsinCancerRiskAssessment:Yes,theydoexist.”UniversityofGeorgia,DepartmentofEnvironmentalHealthScience,Athens,GA,October26
• 2008 "Toxaphene–HowBadisthisPesticide?"UniversityofGeorgia,DepartmentofEnvironmentalHealthScience,Athens,GA,October9
• 2008 "NaggingQuestionsaboutPCBs"UniversityofGeorgia,DepartmentofEnvironmentalHealthScience,Athens,GA,October7
• 2008 "ToxicologyofPolychlorinatedBiphenyls(PCBs),"GeorgiaPowerToxicSubstancesControlActTraining,GeorgiaPowerHeadquarters,Atlanta,GA,July24.
• 2008 “NeurotoxicModesofActionofPolychlorinatedBiphenylsandBrominatedFlameRetardants:ImplicationsforEnvironmentalRegulation”,NationalInstituteofEnvironmentalHealthScience5thPCBWorkshop:NewKnowledgegainedfromoldpollutants,May16-22,IowaCity,IA,invitedbyDr.P.R.S.Kodavanti
• 2007 “NeurotoxicEquivalenceSchemeofRelativePotencyforAssessingtheRiskofPCBMixtures,”Dioxin2007,Tokyo,Japan,invitedbyDr.P.R.S.KodavantiofEPA,September.
• 2007 “ProbabilisticRiskAssessmentandExposure,”UniversityofGeorgia,DepartmentofEnvironmentalHealthScience,Athens,GA
• 2006 “Toxaphene–theWorld’sMostMisunderstoodPesticide,”UniversityofGeorgiaDepartmentofEnvironmentalHealthScienceSeminarSeries,Athens,GA
• 2005 "RegulatoryPerspectivesonProbabilisticRiskAssessment.”SocietyforRiskAnalysisandInterstateRegulatoryCouncilWorkshop.MichiganStateUniversity,EastLansing,Michigan
• 2004 “NewDirectionsinEnvironmentalIssues:anEPAPerspective.”PanelDiscussionattheGeorgiaEnvironmentalLawSeminar,SaintSimonsIsland,GA
• 2003 "ProbabilisticApproachestoDose-ResponseAssessment."LecturetoEPA'sRiskAssessmentForum,
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• 2000 “ProbabilisticRiskAssessment:StepbyStep,”SponsoredbyNIEHS,EPAandtheUniversityofFlorida,SafetyHarbor,FL
• 1999 “EPA’sNewGuidanceonCitizenInvolvementinSuperfundRiskAssessment–WhatLawyersandRiskProfessionalsNeedtoKnow.”PanelDiscussionattheSocietyofRiskAnalysisAnnualMeeting,Atlanta,GA
• 1999 “CalculatingCleanupLevelswithMonteCarlo:RegulatoryConcernsandPerspective.”WithinasymposiumorganizedbyScottFerson,SocietyforRiskAnalysisAnnualMeeting,Atlanta,GA
• 1999 “PracticalIssuesintheUseofProbabilisticRiskAssessmentandItsApplicationtoHazardousWasteSites,”sponsoredbyNIEHS,EPAandtheUniversityofFlorida,Sarasota,FL
• 1996 "EvaluatingtheRiskofLiverCancerfromOccupationalExposuretoTrichloroethylenewithPBPKModelingandMonteCarloSimulation.”ChemicalIndustryInstituteofToxicology,ResearchTrianglePark,NC
KeyExperienceLITIGATION SUPPORT / WORK FOR LEGAL APPLICATION 2015-16 ExpertReportontheToxicityofDioxin-likeChemicals Providedareportanddepositionondifferencesintoxicityofthevariousdioxin-likechemicals.2015 ConsultationwithaWaterUtilityregardingtheHealthEffectsofRadiuminDrinkingWater Workedwithahealthphysicisttodevelopajointopinionaboutthehealtheffectsofradiumandpotential
treatmenttechnologiestoenabletheutilityinanacquisition.2015 DepositiontoStateEnvironmentalRegulatorsabouttheEffectsofSeleniumonHumanHealth ProvideddepositionregardingthetoxicityofseleniumdischargedintostreamsnearAppalachiancoalmines.2015 ExpertReportontheLikelihoodofFungalEyeInfectionafterContactwithFertilizer Investigatedexposureofplaintifftoairbornefertilizerparticlesduringspreadingoperations.Thefertilizer
particlesenteredtheeyeandfungalinfectionofthecorneaensued.Wroteareportthatresultedinimmediatesettlementinfavoroftheplaintiff.
2015 ExpertOpinionontheToxicityandHealthEffectsofSyntheticCannabinoidsInJanuary,providedamemorandumtotheFairfaxCounty,VAPoliceDepartmentdetailingthehealtheffectsofsyntheticcannabinoidsusedintheillegaldrugsknownas“spice”or“K-2.”
2014-15DevelopmentofStatisticalBackgroundScreeningMethodsforUseataPotentialSuperfundSiteInDecember,providedacomparisontobackgroundforconcentrationsofarsenicandpolycyclicaromatichydrocarbonsatasitecurrentlygoingthroughtheHazardRankingSystem.
2008-14ExpertConsultationandDepositiononRegulatoryDecisionsataSuperfundSiteProvidedanexpertreporttoattorneysabouthowthepresenceofdioxin-likechemicalsandPCBsaffectedtheregulatoryactivities/decisionsataSuperfundsiteinNewEngland.In2014,providedadepositiontoaDept.ofJusticeattorneyinWashington,DC,
2014 ReportonTSCAComplianceStatusofRecentDataandPublicationsontheHealthEffectsofChromiumPreparedareportonthedeterminationsofwhetherthesedataandpublicationscouldbeconsidered“new”information.Thepurposewastoprovideattorneyswithriskinformationasindicatedinthe1978TSCASection8(e)PolicyStatementonSubstantialRiskNotificationstoEPA.
2010 RebuttalReportonHexavalentChromium Preparedareportrebuttingareportsubmittedbytheexpertworkingforopposingcounselregardingthehealth
andenvironmentaleffectsofhexavalentchromium.2008-10ExpertTestimonyregardingtheEffectsofInorganicMercury
Providedanexpertreporttoattorneysinachildcustodymatterregardingthelongtermneurologicalandpsychologicaleffectsofinorganicmercury.ProvidedexperttestimonyonthismatterinfamilycourtinFultonCounty,GAregardingthetoxicityofinorganicmercury.
2009 ExpertConsultationregardingUSEPA'snewArsenicToxicityCriterionProvidedamemorandumtoattorneysandpersonnelfromelectriccompaniesontheramificationsofEPA'sproposedchangeintheoralcancerslopefactorforArsenic.
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2008 RiskCommunicationandExpertConsultationregardingAerosolEmissionsRetainedasanexpertintoxicologybyattorneysforGeorgiaPowertoprovidescientificconsultationandriskcommunicationregardingemissionsofseveralinorganicchemicalsfrompowerplants.
2007 ProBonoEvaluationofExposuretopara-dichlorobenzene(PDB)ProvidedanexpertreportonexposureandpotentialliverdamageinanindividualworkinginabotanylaboratoryinwhichPDBwasusedasaninsectfumigantforplantspecimens.
2006 AssessmentofPossibleDrug/AlcoholImpairmentinforWorkman’sCompensationExaminedquickurinedrugscreenresultsshowingalcoholandmarijuanauseanddevelopedanassessmentofpossibleimpairment.
2006 ExpertConsultationontheRecentHistoryofArsenicRegulationbyEPAProvidedamemorandumdetailingthehistoryofarsenicregulationasasoilcontaminantbyEPAheadquartersandbyRegion4EPA(Southeast)since1988tosupporttheeffortsofattorneysregardingaSuperfundsite.
2006 ConsultingExpertregardingIndoorDampnessandMoldServedasaconsultingexpertregardingadverseeffectsofexposuretoindoordampness,associatedmoldandbacteriaandthedisinfectantchemicalsusedinthecleanup.
2003-4 ModelofChemicalReleasefromaRailroadTankCarDevelopedamathematicalmodelforthereleaseanddispersionofadensegas,ethylacrylate,fromarailroadtankcar.Thegasproducedorganolepticeffects,andathigherexposure,toxiceffects.Sourcecharacteristicswereobtainedusingbasicphysicalchemicalprinciples.Dispersionmodelingwasperformedfordensegasdispersionincomplexterrain.
2003 ExpertTestimonyinEPAvs.NormanC.MayesAsanEPAtoxicologist,providedtestimonytoAdministrativeLawJudgeBarbaraGunningregardingthehealtheffectsofbenzeneandotherfuelcomponentsandenvironmentalsamplingaroundundergroundstoragetanks.
2002-4 AirandExposureModelingandPBPKModelDevelopmentofCreosoteExposureataWoodTreatmentFacilityDevelopedacomprehensivedatabaseofchemicalsinwoodpreservativemadewithcoaltarcreosote,amathematicalmodeloftheairconcentrationsofthesechemicalsatawoodtreatmentfacility,andasecondmodelforhumaninternalexposuretothesechemicalsthatincludedingestion,inhalationanddermalpathways.
2001-2 ExpertTestimonyregardingCalibrationoftheIntoxilyzer5000DevelopedtestimonyregardingthecalibrationproceduresoftheIntoxilyzer5000,the"breathalyzer"usedinGeorgiaforDUItesting.ChargesinDUIcasesweredroppedinthethreecasesinwhichDr.Simonwasinvolvedpriortohistestimony.
2000 ChemicalReleasefromaRailroadTankCarDevelopedamodelofreleaseandtransportofacrylamidefromarailroadtankcarforuseinlitigation.
PRODUCT LIABILITY AND SAFETY EVALUATIONS 2013 PresentationtoaFrenchGovernmentAgencyonProductSafety
ProvidedareportwithestimatesofbothtoxicityandexposuretorailworkersontheuseofasyntheticdielectriccompoundmanufacturedbyacompanyintheUK.MetwithFrenchgovernmentpersonneltodiscussthereport.
2012 AssessmentofRiskfromMetalPlatingFlakingfromanAuxiliaryFaucetusedwithaWaterFilter Developedriskestimatesforwaterconsumersfromdissolvedmetalsandmetalflakesfromthefaucet.This
assessmentwasusedinternationallyandthereforeincorporatedWorldHealthOrganizationmethodology.
TEACHING 2014 Instructor,EnvironmentalRiskAssessmentandCommunication,EHSC8110,UniversityofGeorgia
TaughtagraduatelevelcourseIntheSchoolofPublicHealthusinghistextbook,“EnvironmentalRiskAssessment:AToxicologicalApproach.”
2008 LectureontheToxicologyofPCBsDevelopedandpresentedatrainingsegmentaspartoftheToxicSubstanceControlAct(TSCA)trainingforelectricpowercompanypersonnelattheGeorgiaPowerCompany.
2008 IntroductiontoRiskAssessment,atwodayclassfortheOntarioMinistryofEnvironmentWithanotherscientist,developedandtaughtaclassonriskassessmentfornewlyhiredpersonnelattheMinistry.
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2005 ProbabilisticRiskAssessmentandStatistics,ashortcoursetoMichiganDepartmentofEnvironmentalQualityWithanotherscientist,presenteda1½dayclassonprobabilisticriskassessmentandstatisticsaspartofaweeklongworkshopsponsoredbytheSocietyforRiskAnalysisandInterstateTechnologyRegulatoryCouncil.
2003 GraduateCourseinSimulationModeling,GeorgiaStateUniversityTaughtagraduatelevelcourseinSimulationModelingincludingstatistics,probabilisticmethodsandtime-dynamicdifferentialequationmodels.
2003 ShortCoursetoOntarioMinistryofEnvironmentonProbabilisticRiskAssessmentWithanotherscientist,developedandtaughtaclassonprobabilisticriskassessment,includingprobabilisticapproachestodose-responsetopersonnelattheOntarioMinistryofEnvironmentinToronto,Canada
2001-06UniversityofGeorgiaGraduateCourseinEnvironmentalRiskAssessmentOnthreeseparateoccasions,taughtagraduate-levelclassonEnvironmentalRiskAssessmentlasting15weeks,3hoursperweek.
2001 ShortCoursetoTexasNaturalResourcesConservationCommissiononProbabilityDistributionsWithanotherscientist,developedandtaughtaclassonstatisticsandprobabilitydistributionstodatatoTNRCCpersonnel.
2000 WorkshopsonProbabilisticRiskAssessmentPerformedasanEPAtoxicologist.In1999and2000,workedwithDr.SteveRobertsoftheUniversityofFloridatoorganizetwoworkshopsonPRAsponsoredbyEPA,NIEHSandtheUniversityofFlorida.
1999 ShortCoursetoTexasNaturalResourcesConservationCommissiononProbabilisticRiskAssessment Withanotherscientist,developedandtaughtaclassonprobabilisticriskassessmenttoTNRCCpersonnel.1997 ShortCoursetoNavyEnvironmentalHealthCenterpersonnelonProbabilisticRiskAssessment
Withanotherscientist,developedandtaughtaclassinprobabilisticriskassessmentNavypersonnelinNorfolk,VA.
REGULATORY TOXICOLOGY 2016 AnalysisofChemicalSimilarityforAbuseLiabilityofCandidateDrugMolecules ConductedastatisticalanalysisofchemicalsimilaritybetweentwocandidatedrugsandsubstancesontheDEA
ControlledSubstanceListtoaddresstheissueofpotentialabuseliability.2015-16WhitepaperonCausalAssociationsbetweenFlameRetardantExposureandFirefighters’Diseases
DevelopedfortheFlameRetardantsAlliance.2015 RevisionoftheToxicityFactorforthePesticideToxapheneforuseattheHerculessiteinBrunswick,GA Developedarevisedestimateofthetoxicitycriterion(ReferenceDose)forthepesticidetoxapheneforuseina
newriskassessmentfortheHerculessiteinBrunswick,Georgia.2015 AdverseOutcomeSummaryPathwaysforChemicalswithUncertaintyabouttheModeofAction Adverseoutcomepathways(AOPs)arebeingusedbyEPAandOECDtoformadatawikiforeventual
interpretationofhigh-throughputinvitrodata.DevelopedseparatesummariesofAOPsforfourchemicalscarcinogenicinanimalsusingtheassumptionofmutagenicityasmodeofactionandhyperplasia/cellproliferationasthemodeofaction.
2014-15ReportonBayesianStatisticalMethodsusedintheNRC(2014)ReviewofIRIS Developedareportexamining24toxicityfactorsfromEPA’sIntegratedRiskInformationSystemdatabase,the
subjectofarecentreviewbytheNationalResearchCouncil.ThereportcomparedEPA’smethodswiththoserecommendedintheNRCreport.
2014 PresentationonarsenicandchromiumatEPA’sIntegratedRiskInformationSystem(IRIS)BimonthlyMeeting InJune,presentedmodeofactioninformationforarsenicandhexavalentchromiumatEPA’sIRISmeeting.The
purposeofthesemeetingsistoseekinputfromstakeholdersfordevelopmentofIRISriskassessments.2013 PresentationonQuantitativeMethodsforModeofActionAnalysistoEPA’sBimonthlyIRISMeeting InDecember,presentedslidesanddiscussiontoEPAandotherstakeholdersbasedonthepaperwrittenwith
ILSI/HESItitled“TheUseofModeofActionInformationinRiskAssessment:QuantitativeKeyEvents/Dose-ResponseFramework(Q-KEDRF)forModelingtheDose-ResponseforKeyEvents.”
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2013-16DevelopmentofWikifilesontheAdverseOutcomePathwayfortheOrganisationforEconomicCooperationandDevelopment(OECD)
WroteandeditedwebpagesforuseinthenewAOPWikisponsoredbyOECD,EPAandothers.ThepurposeofthecollectionofAOPsandtheWikiistocontextualizeinvitrodataforuseinriskassessment.
2013 PreparationofaReportProvidingDerivedLD50ValuesforMetalsinFlyAsh DosesofflyashrepresentingtheLD50formetalsweredevelopedforflyashproducedbyanincinerator
operatedbyalargecountygovernmentinsouthernCalifornia.2013 DevelopmentofEvidenceTablesforEPA’sIntegratedRiskInformationSystem(IRIS)Assessments DevelopedtabularformatforpresentingmodeofactionandtoxicityinformationconsistentwiththeNational
AcademyofSciences’ReviewoftheEnvironmentalProtectionAgency'sDraftIRISAssessmentofFormaldehyde.PresentedthetablesandaccompanyingrationaletoEPAIRISstaffusinghexavalentchromiumasanexample.
2013 DevelopmentandPresentationofResponsestoChargeQuestionsforEPA’sFederalInsecticide,Fungicide,andRodenticideAct(FIFRA)ScientificAdvisoryPanel
Wroteresponsesonphysico-chemicalscreeningandtherainbowtroutExpertSystemforestrogeniceffects;presentedtheresponsesattheFIFRA/SAPmeetingatEPAHeadquarters.
2012 ReviewofEPA’sToxicologicalReviewofAmmonia ReviewedtheEPAdraftdocumentforammoniatodetermineconsistencywithrecommendationsfromthe
NationalAcademyofSciences.PresentedresultsatEPA’sIRISlisteningsessiononAmmonia.2012 Reviewof2012TexasCommissiononEnvironmentalQuality(TCEQ)“GuidelinestoDevelopToxicityFactors” TCEQdevelopsitsowntoxicitycriteriaanddoesnotdependonEPA’sIRISdatabase.Preparedcommentsonthe
guidanceforsubmissiontoTCEQ.2012 PreparationofaWhitePaperandmanuscriptforpublicationonValidationofEPA’sToxCast™SuiteofHigh
ThroughputInVitroAssays Wrotenarrativepaperandmanuscriptforachemicalindustrytradegrouponissueswithvalidationofthese
assaysforchemicalscreeningandprioritization.2011 DevelopmentofPhysiologically-basedPharmacokineticModelsforDioxin,PCBs,DDT,Hexachlorobenzeneand
OrganophosphatePesticidesforuseasteachingtoolsattheAgencyforToxicSubstancesandDiseaseRegistry(ATSDR)
DevelopedPBPKmodelsinBerkeleyMadonnasoftwareforuseasteachingaidsforpersonnelatATSDR.2011 ReviewofEPA’sPhysiologicallyBasedPharmacokineticModelforAcrylonitrileUsedintheIRISRisk
Assessment ReviewedtheMATLABcomputercodeandoutputforoptimizationofparametersusedinthismodel.
TOXICOLOGY AND REGULATORY ANALYSIS OF DIOXIN-LIKE CHEMICALS INCLUDING POLYCHLORINATED BIPHENYLS 2012-15ModelingofDioxin-inducedGeneExpressioninBreastCancerCells
Developedamodelofgeneexpressionusingstochasticsimulationmethodsthatreproducedseveralphenomenasuchasnon-monotonicdoseresponsecurves.TheresultsareinpressinPLOSONE.
2012 DevelopmentofaMarginofExposureforEnzymeInductionfromDioxinExposureforComparisonwithRecentEPAToxicityFactorsforaWeight-of-Analysis
Usingdatafrombothhumansandlaboratorytestspecies,determinedthedoseatwhichanincreaseinthyroidhormonemetabolismcouldbeexpectedandcomparedthisdosewiththecurrentEPAreferencedosebasedonthyroideffectsinnewborns.
2011 Inclusionof2009ReferenceDosefor2,3,7,8-Tetrachlorodibenzodioxin(TCDD)intheITERandTOXNETdatabases
Presentedconclusionsfroma2009publicationtoapeerreviewpanelconvenedbyToxicologyExcellenceinRiskAssessment(TERA)forplacementintheInternationalToxicityEstimatesforRiskAssessment(ITER)databaseandlinkedtotheTOXNETdatabaseattheNationalLibraryofMedicine.
2011 DevelopedaRevisedToxicEquivalenceFactor(TEF)for2,3,7,8-Tetrachlorodibenzofuran(TCDF) TCDFisadioxin-likechemicalthatismetabolizedandeliminatedwithinhoursincontrasttootherdioxin-like
chemicalsthatpersistinthebodyformanyyears;developedanestimateoftheTCDFTEFthatincorporatesthisrapidmetabolismforpresentationataninternationalconferenceinBrussels,Belgium.
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2011 AllianceforRiskAssessmentPresentationonDioxinusingScienceandDecisionsConceptualModels PresentedresultsfromtheapplicationofdoseresponsemethodsdescribedNationalResearchCouncil's2009Report
"ScienceandDecisions:AdvancingRiskAssessment"todioxin.TheaudiencewasanexpertpanelthatincludedseveraloftheauthorsoftheNRCreport.
2010 ReportonBiota-SedimentAccumulationFactor(BSAF)forAroclor1260,aCommercialPCBMixture ProvidedareviewandcommentaryonthedevelopmentofaBSAFforAroclor1260(PCBmixture)anditsgeneral
applicabilitytoPCBcontaminatedsites.2010 RapporteurataWorkshoponDose-ResponseApproachesforNuclearReceptor-MediatedModesofAction Ledpaneldiscussionandprovidedthepresentationofthereportforthepanelexaminingthemodeofactionof
thearylhydrocarbonreceptorthatmediatesgeneexpressionfromdioxin-likechemicals.2010 RiskAssessmentforDioxinbasedontheOccurrenceofChloracneinHumans Developedariskassessmentfor2,3,7,8-tetrachlorodibenzo-p-dioxinbasedsolelyondatafromhumansand
presentedtheworkattheDioxin2010meetinginSanAntonio,TX.2010 AnalysisofResponsesofHumanandRodentLiverCellstoDioxin-LikeChemicals Conductedstatisticalanalysisofgenomicandproteomicdatainresponsetothreedioxin-likechemicalsfrom
humanandrodenttissuesinvitro.2010 CancerSlopeFactorsandToxicityEquivalenceFactorsforDioxin-LikeChemicalsbasedonInternalDoses Developedacomparisonofthetoxicityoffourdioxin-likechemicalsbasedontissueconcentrationsfrom
NationalToxicologyProgrambioassaysusingphysiologically-basedpharmacokineticmodelinganddoseresponsemodels.
2009 EvaluationofToxicityEquivalenceFactorsforDioxin-likeChemicalsbasedonexternaldoses DevelopedacomparisonofmethodsusedtodevelopvaluesforTEFsusedinriskassessmentsofdioxin-like
chemicals.2009 EPAFederalAdvisoryCommitteeAct(FACA)WorkshoponDIoxin Attendedworkshopontheriskassessmentof2,3,7,8-tetrachlorodibenzodioxin(TCDD);providedpublic
commentaryonEPA'sproposedmethodsforrevisingthe2003dioxinreassessment.2008 ReviewofPCBEcotoxicologyInformationintheBaselineEcologicalRiskAssessmentfortheLCPChemical
SuperfundSite,Brunswick,GA ReviewedthetoxicityassessmentforPCBsfortheecologicalriskassessmentforthissitetoensureconsistency
withthevaluesandapproachusedinthehumanhealthriskassessment.2007 ComparisonbetweenBloodLevelsofDioxininresidentsofMidland,MIandthoseinratsassociatedwith
AdverseEffects Conductedacomparisonbetweenhumanbloodlevelsof2,3,7,8-TCDDand2,3,4,7,8-PeCDFmeasuredinhumans
intheUniversityofMichiganDioxinExposureStudyandestimatedbloodlevelsinratsfrombioassayspublishedbytheNationalToxicologyProgramin2006.
2007 DevelopmentofaRiskAssessmentMethodologyBasedonChangesinGeneExpression Withveryrecentinformationondioxin-relatedgeneexpressionchangesintheliver,developedamethodfor
usingthesechangesasabiomarkerfortheprogressiontotype2diabetes.2007 WhitepaperontheNon-cancereffectsonhumansofDioxin-likeChemicals Collectedscientificinformationrelatedtopotentialandactualhumanhealtheffectsfrompublishedstudiesof
theYu-Cheng/Yushopoisoning,theSevesoexposure,theBASFplantexposureandtheVietNamRanchhands(AgentOrangehandlers)andotherstoassessthelikelihoodofvarioushealthoutcomesfromdioxinexposure.
2007 SoilCleanupStandardsforDioxinrelatedtotheGeorgiaHazardousSubstancesResponseActforasecondarycoppersmelter
DevelopadioxincleanuplevelinsoilforconsiderationbytheGeorgiaEPDthatincludedanepidemiologicalstudyofdioxininthebloodofworkersatthesmelter.
2005 DevelopmentofSurrogateValuesforReportedDioxinConcentrationsBelowtheAnalyticalDetectionLimit PerformedasanEPAtoxicologist;theuseofcontract-specifiedreportinglimitsasnondetectsurrogatesfor
dioxinanalysisleadstolargeoverestimatesofsoilconcentrations;identifiedamoreaccuratenondetectsurrogatevaluebasedontheactualchemicalanalysis.
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2005 ReassessmentfortheNeedforPCBCongenerAnalysisattheAnniston/SolutiaPCBSite PerformedasanEPAtoxicologist;comparedresultsfromPCBcancerbioassaysofthecancerpotencyofdioxin-
likePCBs.2004-5 GeostatisticalmodelingofdioxinconcentrationsinsoilatSuperfundSitesinFlorida PerformedasanEPAtoxicologist;theseanalysesdemonstratedthatcleanupatthesesiteshadbeensuccessful
andappropriateforthepredictedlanduse;theanalysesalsoshowedthatdioxinoccurringoff-sitewasunrelatedtoon-sitecontamination.
HUMAN HEALTH AND ECOLOGICAL RISK ASSESSMENT AND RISK COMMUNICATION 2014 DevelopmentofaProbabilisticRiskAssessmentforNellisDunesRecreationArea,Nevada WorkedinconjunctionwithacademicscientistsattheUniversityofNevada,MontanaStateUniversityandthe
UniversityofSouthCarolinatousenewlydevelopedinformationofthegeologyofNellisDunesandsite-specifictoxicitybioassaysofdusttocompleteariskassessmentforexposuretodustatthisrecreationarea.
2012 ParticipationonaRiskAssessmentTeamdevelopingmethodologytoassessaSuperfundsiteconsistingofalargeareafloodplain
Evaluatedriskassessmentoptionsandlandusetosupportcleanupdecisionsatanimpactedareacomprisingseveralsquaremilesandmanyrivermiles.
2010 ScreeningLevelEcologicalRiskAssessment(SLERA)forasiteinFloweryBranchinHallCounty,Georgia Atanindustrialparknearaninterstatehighway,theareaofpotentialecologicalconcernconsistedofastorm-
waterretentionpondandastream.InvestigatedthesiteanddevelopedtheSLERAdocumentforsubmissiontotheGeorgiaEnvironmentalProtectionDivision.
2009 StreamlinedHumanHealthandEcologicalRiskAssessmentstosupportRemovalActionattheNabesnaMineSiteinNabesna,Alaska
ThissiteislocatedintheWrangell-St.EliasNationalParkandwasafunctioninggoldmineintheearly20thcenturywithhighconcentrationsofmetalsassociatedwithminetailingsandacidminedrainage;developedbothriskassessmentstosupportanon-time-criticalactionatthesite.
2009 DevelopmentofGeorgiaRiskReductionStandards(RRS)forDrexelChemicalCompanyinCordele,GAandanothersiteinNorthGeorgia
CalculatedGeorgiaRRSvaluesforthissite;negotiatedinpersonandbyteleconferencewithGeorgiaEnvironmentalProtectionDivisionpersonnelregardingtheappropriateuseoftoxicitycriteria.
2009 RiskCommunicationandRegulatoryReviewrelatedtotheTVACoalAshSpillinKingston,TN ProvidedriskcommunicationatpublicavailabilitysessionforboththeAmericanCoalAshAssociationandTVA;
reviewedsubmissionstoEPAdevelopedbyTVA.2008 EvaluationofSoilConcentrationsofArsenicwithanEmphasisonLocalBackgroundataPowerPlant DevelopedareportforsubmissiontotheGeorgiaEnvironmentalProtectionDivisionregardingareleaseofwaste
materialcontainingarsenicthatoccurredbystormwaterrunoff;thereportconsideredthegeologyandlocalbackgroundconcentrationandincludedastatisticalanalysis.
2008 StatisticalEvaluationofSolventDatainGroundwaterandCritiqueofATSDRHealthAssessmentofaSuperfundSite
ProvidedareportthatincludedsuggestionsandcommentsontheATSDRReport.PerformedastatisticalanalysistorefinetheconclusionsreachedandcritiquedthemethodologyfortheHealthAssessment.
2008 QualityAssuranceforFishConsumptionRiskAssessmentonthePassaicRiver Reviewedandprovidedcommentsonboththeaccuracyandconceptualizationoftheriskassessment.2008 DevelopmentofGeorgiaRiskReductionStandardsforTrivalentandHexavalentChromiumandseveral
VolatileOrganicChemicals CalculatednumericalstandardsunderGeorgia'sHazardousSiteResponseRule391-3-19asasubcontractorin
supportofapropertysaleandtransfer2008 InvestigationintotheScientificBasisofLandDisposalLimitof50partspermillionforPCBs Underthe1979ToxicSubstancesandControlAct(TSCA),EPAhasplacedanupperlimitof50ppmforland
disposalofPCBs.Investigatedthescientificbasisofthisvalueforapplicationataformerchlor-alkaliplantsiteinNorthCarolina.
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2008 ReviewofCleanupTargetLevelsofFloridaDepartmentofEnvironmentalProtection ProvidedareviewoftheCleanupTargetLevelsusedforregulationbyFloridaDepartmentofEnvironmental
Protection.2007 EvaluationofCalculationMethodsfortheGeorgiaRiskReductionStandardsoftheGeorgiaHSRAProgram ExaminedRRSvaluesforsoilandgroundwaterdevelopedforasiteinnorthGeorgiaandprovidedanexplanation
oftherationaleunderlyingdiscrepanciesinthecalculatedvalues.2007-9 RiskAssessmentfortheExposuretoMercuryandPCBsfromcontactwithMarshSedimentandConsumption
ofFishandGameBirdsattheLCPChemicalSuperfundSite,Brunswick,GA. Conductedariskevaluationforsedimentexposureand,fishconsumptionwithdevelopmentofsite-specificfish
consumptionestimatesandasite-specificsedimentexposureestimateforanupdatedRemedialInvestigationReportforsubmissiontotheUSEnvironmentalProtectionAgency.
2007 ProBonoEvaluationofGeorgiaDNRFishAdvisoriesforPCBsandMercury EvaluatedcurrentfishadvisoriesnearBrunswick,GAforDr.RandyManning,theGeorgiastatetoxicologist.2007 GeorgiaRiskReductionStandardsforPCBs,mercuryandotherchemicalsinSoilandGroundwaterattheLCP
ChemicalSuperfundSite Prepareddetailedcalculationsofsoilandgroundwaterscreeningvaluesbasedbothondirectexposureand
transferofchemicalsfromsoiltogroundwater.2006-10RiskAssessmentfortheResidentialExposureScenarioforPCBsandmercuryinUplandSoilsattheLCP
ChemicalSuperfundSite,Brunswick,GA. Conductedariskevaluationforresidentialexposure.TheoriginalriskassessmentfortheLCPsitedidnotinclude
anestimateofrisktoon-siteresidentsorotherhumanreceptorswithasmallexposureunit(ca.0.5acres).ThisriskevaluationwillbepartofanupdatedremedialinvestigationtosubmittoUSEPA.
2006-7 RiskAssessmentforConsumptionofEstuarineFishcontainingToxapheneResiduesbyCoastalGeorgiaResidentsrelatedtheHerculesChemicalSuperfundSiteinBrunswick,GA
DevelopedfishconsumptionestimatesforcoastalGeorgiaresidentsbasedontheprevioussurveysintheBrunswickareausedalongwithpublishedworkonthetoxicityoftoxaphenetosupportaprobabilisticriskassessmentforfishconsumptionpreparedforUSEPA.
2006 DevelopmentofaPhysiologically-basedPharmacokineticModelforCopperinMigratoryBirdsforEcologicalRiskAssessmentofMine-AssociatedTailingsPonds
Highcopperconcentrationsinwaterassociatedwithacidminedrainagemaybetoxictobirds;developedofaPBPKmodelofcopperabsorption,distribution,metabolismandexcretion(ADME)injuvenileducksandadultgeese;conductedafeasibilitystudyofincorporatingthephysiologicalchangesassociatedwithmigrationintothismodel.
2006 DevelopmentofaPreliminaryRiskAssessmentforSeleniumaspartofaProposaltoAddressOverallEffectsofSeleniuminaRiverSystem
Developedhumanhealthandecologicalriskestimatesforseleniummigratingfromcoalpilesintoariver.Theseestimatesincludedconsumptionoffishandwaterbyhumans.
2006 EvaluationofGeorgiaDNRFishAdvisoriesnearBrunswick,GA ConductedanevaluationoffishadvisoriesforToxapheneandPCBspublishedbytheGeorgiaDepartmentof
NaturalResources.2006 DevelopmentofawhitepaperpresentingthehistoryofProbabilisticRiskAssessment(PRA)atEPA ReviewedEPAguidancedocumentsandscientificliteratureandproducedadocumentthatdetailedthis
completehistoryofPRAatEPAandsuggestedlikelyusesofPRAinthefuture.2005 RiskCommunicationregardingsolventsingroundwateratAugusta,Georgia AsanEPAtoxicologist,providedinformationtocitizensatapublicmeetingregardingthepossiblehealtheffects
oftetrachloroethyleneandtrichloroethyleneingroundwaterrelatingtoaRCRAsite.2005 ReviewofProposedArsenicToxicityAssessmenttobeplacedonEPA’sIRISDatabase AsanEPAtoxicologistandconsensusreviewerforEPA’sIRISdatabase,reviewedandprovidedcommenton
proposedchangestothearsenictoxicityassessment.
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2004-5 RiskCommunicationtoCommunityAgainstPollution(CAP),acitizensgroupinAnniston,AL AsanEPAtoxicologist,developedarelationshipwithCAPandpresentedinformationonthehealtheffectsof
PCBsatseveralpublicandcommunitymeetings.2004 ProvidenceParkEcologicalRiskAssessment Conductedascreeninglevelecologicalriskassessment(SLERA)fortheProvidenceParksiteinAlpharetta,
Georgia.2004 RiskCommunicationregardingTrichloroethylene AsanEPAtoxicologist,providedinformationtotheCitizen'sAdvisoryGroup(CAG)atAnnistonArmyDepotanda
groupofconcernedcitizensaboutthehealtheffectsoftrichloroethylene.2003-5 DevelopmentofEPA'sGuidanceonSurfaceSoilCleanupatHazardousWasteSites:ImplementingCleanup
Levels AsanEPAtoxicologist,developedaguidancedocumentthatpresentedmethodsforapplyingrisk-basedcleanup
levelsasareaaveragesratherthannot-to-exceedlevels.2003 SoilCleanupStrategyforaSkeetRangeatNavalAirStationCecilFieldinJacksonville,FL. AsanEPAtoxicologist,usedbothgeostatisticsandexposureassessmenttorefinethesizeoftheareaneeding
remediation.2000 DiscussionofFlorida’sSecondaryDrinkingWaterStandardsbasedonOrganolepticEffects AsanEPAtoxicologist,investigatedthebiologicalbasisofFlorida’ssecondarydrinkingwatercriteriafor
aluminum,iron,manganeseandsilverforwhichsecondarystandardsbasedonesthetics(smellandtaste)werebelowhealth-basedcriteria
2000 MemorandumpresentingAmendedGuidanceonEcologicalRiskAssessmentatMilitaryBases:ProcessConsiderations,TimingofActivities,andInclusionofStakeholders
AsanEPAtoxicologist,authoredamemothatenabledecologicalriskassessmentsatDODfacilitiestobecompletedinatimelymannerandensuresthatriskassessmentactivitiesoccurattimesconsistentwithDODfundingschedules.
1996-9 DevelopmentofRiskAssessmentGuidanceforSuperfund,Part3.ProcessforConductingProbabilisticRiskAssessment
AsanEPAtoxicologist,madesignificantcontributionstothisguidance,whichreceivedEPA'sScienceAchievementAwardin2001.
1995 Region4Bulletins:RegionalRiskAssessmentGuidance AsanEPAtoxicologist,authoredRegion4riskbulletinsonToxicityAssessmentandonDevelopmentofRemedial
GoalOptions.
ADDITIONAL WORK IN TOXICOLOGY 2014-16DevelopmentofanAdverseOutcomePathwayDocumentforaMutagenicModeofActionforCancer Workedwithindividualsfrombothgovernmentandtheprivatesector,collaboratedonamanuscriptdetailing
themodeofaction/adverseoutcomepathwayforlivertumorigenesisinanimalsandhumansbyaflatoxinB1,atoxinproducedbyfungiandubiquitousingrainsandgroundnuts.
2009-16OngoingScientificConsultationontheHealthEffectsofHexavalentChromium Providesongoingsupportfortoxicologicalandriskassessmentinformationfortoxicologicalissuesrelatedto
hexavalentchromiumforaFortune100company.2010 StatisticalAnalysisofReproductiveEndpointsinRatsExposedtoFlameRetardantChemical PerformedstatisticalanalysisofdichotomousdataforreproductiveendpointstoinformaEuropeanconsortium
aboutthemostappropriatemethodsfordataanalysis.2009 ResponsestoEPAChargeQuestionsforReviewofthe2009ToxicologicalReviewof1,4-Dioxane WroteresponsestoEPA's"ChargetoExternalReviewersfortheToxicologicalReviewof1,4-Dioxane”relatedto
uncertaintyanalysis,physiologically-basedpharmacokinetic(PBPK)modelingandBenchmarkDosemodeling.2009 Physiologically-basedPharmacokineticModelsforMethylmercury,Arsenic,CadmiumandBisphenol-Aforuse
asteachingtools TranslatedexistingmodelsintotheBerkeleyMadonnacomputersoftwareforuseasteachingaidsforpersonnel
attheAgencyforToxicSubstancesandDiseaseRegistry.
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2008 WhitepaperontheEthicsofEnvironmentalRegulationandCompoundingConservatisminRiskAssessmentfortheOntarioMinistryoftheEnvironment
Usedhistoricalsources,philosophicalliteratureandmodernscientificpublicationstoprovideanunderstandingoftheextenttowhichenvironmentalregulationsandstandardsarebasedontheprecautionaryprinciple.
2008 AssessmentofConservatismofSoilandGroundwaterStandardsfortheOntarioMinistryoftheEnvironment Assessedthelevelofconservatismofproposedenvironmentalmediastandardsusingstatisticalmethods.2007 ExpertPanelDevelopingaProtocolforToxicityTestingofaLegacyPesticideMIxture Servedonapaneltorefineaprotocolfortoxicitytestingofsoilconsideringbothindividualpesticideisomersand
mixtures.2004 ConsultationwithEPARegion4MercuryStudyGroup AsanEPAtoxicologist,providedinformationtoagroupofRegion4personneltoaddressanewspapereditorial
regardinghumanhealthandmercury.
PeerReviewsandPeerConsultations2016 ScienceoftheTotalEnvironment,Dr.JayGan,Editor,“Occurrence,SourcesandEstimationofAir-SoilExchange
ofPolychlorinatedbiphenylsinIndiancities"2015 Structuredpeerreviewofacomparisonbetweentheeffectsoftobaccosmokeandnicotinevaporfrom
modifiedrisktobaccoproductsonthelungsofmice Answeredaseriesofchargequestionsandalsoprovidedsuggestionforfutureresearch.2015 EnvironmentalHealthPerspectives,Dr.MartinVandenBerg,Assoc.Editor,“Definingtheneurotoxicpotential
ofnon-dioxin-likePCBspresentinfishfromUSlakesusingaryanodinereceptor-basedequivalencyscheme.”2015 IUMBLife,Dr.AngeloAzzi,Editor,“Identificationofdifferentiallyexpressedthreenoveltranscriptvariantsof
mouseArntgene.”2015 EnvironmentalResearch,Dr.JoseL.Domingo,Editor,“Antioxidantactivityasapotentialmechanismexplaining
thenegativeinfluenceofleadandcadmiumonworkingmemoryduringaging.”2015 ToxicologicalandEnvironmentalChemistry,Dr.SamKacew,Editor,“Headspaceandsmallchamberstudiesof
airbornediacetylreleasefromselectedfoodflavoringmixtures:Activitycoefficientsandairmodelingimplications”
2015 EnvironmentalResearch,Dr.JoseL.Domingo,Editor,“Transcriptomicandvisualgene-networkanalysisofsilvernanoparticlespotentiallyinducedAlzheimer'sdiseaseprogressioninmousebrainneuralcells”
2015 EnvironmentalResearch,Dr.JoseL.Domingo,Editor,“IdentificationofFreePhthalateMetabolitesinHumanCerebrospinalFluid.”
2014 CriticalReviewsinToxicology,Dr.RogerO.McClellan,Editor,“Riskassessmentsforchronicexposureofchildrenandprospectiveparentstoethylbenzene(CASNo.100-41-4)"
2014 EnvironmentalResearch,Dr.JoseL.Domingo,Editor,“Impactofearly-lifebisphenolAexposureonprecorticaldopamineandserotoninsystemsinjuvenileandadultmalerats.”
2014 EnvironmentalResearch,Dr.JoseL.Domingo,Editor,“BisphenolAisassociatedwithinsulinresistanceandmodulatesadipokinesgeneexpressioninobesechildren.”
2014 HumanandExperimentalToxicology,Dr.KaiSavolainen,Assoc.Editor,“GlobalMethaemoglobinaemiaResearchOutput(1940–2013):ABibliometricAnalysisBasedonScopusDatabase."
2014 HumanandExperimentalToxicology,Dr.A.WallaceHayes,Assoc.Editor,“PharmacokineticStudyofOmeprazoleanditsMetabolitesinMalesandFemales,FemalesExposedtoHigherLevelsofOmeprazole.”
2013 ConsultationtoaWaterUtilityRegardingtheQualityofWaterProvidedtoaCommunity Providedinitialconsultationandcoordinatedapeerreviewofariskassessmentofthepesticidetoxaphene
occurringintraceamountsinthewater.2013 HumanandEcologicalRiskAssessment,Dr.BarryJohnson,Editor,“AssessmentofSoilScreeningLevelsdueto
AccidentalIngestionofChryseneandBenzo[k]fluorantheneatIran’sTORSite.”2012 HumanandExperimentalToxicology,Dr.A.WallaceHayes,Editor.“Effectofnicotinepre-treatmentonarsenic
inducedoxidativestressinWistarrats."
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2012 HumanandExperimentalToxicology,Dr.A.WallaceHayes,Editor,“ElementalimpuritiesinNigerianpediatricsyrups:Mercuryinviolationofstandardguidelines."
2011 JournalofToxicologyandEnvironmentalHealth,Dr.SamKacew,Editor,“ScreeningLevelRiskAssessmentforSANTrimerDetectedinSoilandGroundwater”
2011 HumanandEcologicalRiskAssessment,Dr.BarryJohnson,Ed.“MonteCarloSimulation-basedHealthRiskAssessmentofHeavyMetalPollution-ACaseStudyintheQixiaMiningArea,China”
2011 RiskAnalysis,Dr.TonyCox,Editor,“AGradientMarkovChainMonteCarloAlgorithmforComputingMultivariateMaximumLikelihoodEstimatesandPosteriorDistributions:MixtureDoseResponseAssessment”
2010 EnvironmentalResearch,EllenSilbergeld,Ed.“StructuralNeuroimagingEvaluationofAdultswithChildhoodLeadExposure”
2010 HumanandExperimentalToxicology,Prof.KaiSavolainen,EditorinChief.“TheWorldLibraryofToxicology,ChemicalSafetyandEnvironmentalHealth(WLT)”
2010 JournalofExposureScienceandEnvironmentalEpidemiology,Dr.NatalieFreeman,Assoc.Ed."Comparisonofatoxicokineticandaquestionnaire-basedapproachtoassessmethylmercuryintakeinexposedindividuals”
2010 EnvironmentalResearch,Dr.EllenSilbergeld,Ed.“VaryingcoefficientfunctionmodelstoexploreinteractionsbetweenmaternalnutritionalstatusandprenatalmethylmercurytoxicityintheSeychellesChildDevelopmentNutritionStudy”
2009 RegulatoryToxicologyandPharmacology,GioBattaGori,Ed."DerivedReferenceDoses(RfDs)fortheEnvironmentalDegradatesoftheHerbicidesAlachlorandAcetochlor:ResultsofanIndependentExpertPanelDeliberation"
2009 EnvironmentalResearch,EllenSilbergeld,Ed."EnvironmentalPolicyandChildren'sHealthinMexico"2009 ToxicologicalSciences,Dr.JohnLipscomb,Assoc.Editor,"Age-,Dose-andTime-DependencyofPlasmaand
TissueDistributionofDeltamethrininImmatureRats."2009 Chemosphere,HeideloreFiedler,Ed."Quantitativestructure-activityrelationship(QSAR)studiesforpredicting
activationoftheryanodinereceptortype1channelcomplex(RyR1)bypolychlorinatedbiphenyl(PCB)congeners"
2009 EnvironmentalResearch,EllenSilbergeld,Ed."DeterminationofbromadioloneresiduesinfoxfaecesbyLC/ESI-MSinrelationshipwithtoxicologicaldataandclinicalsignsafterrepeatedexposure.”
2008 Chemosphere,HeideloreFiedler,Ed."TissueDistributionofPolychlorinatedBiphenylsandEffectsonAlaskanNorthernFurSealsAssessedwithFiveCongenerClassificationSchemes"
2008 Chemosphere,HeideloreFiedler,Ed."LevelsofPolychlorinatedDibenzo-p-dioxins,Dibenzofurans,andBiphenylsinSouthernMississippiCatfishandEstimationofPotentialHealthRisks"
2007 CriticalReviewsinToxicology,RogerO.McClellan,Ed.“RiskAssessmentofToxapheneanditsBreakdownProducts:TimeforaChange”
2006 EnvironmentalForensics,IoanaPetrisor,Ed.“IdentifyingMetalsContaminationinGroundwaterUsingGeochemicalCorrelationEvaluation”
2002 EnvironmentalScienceandTechnology,MitchellJ.Small,Ed.“Whyandhowshouldweassessoccupationalhealthimpactsinintegratedproductpolicy?”
2001 OhioEnvironmentalProtectionAgency,“HumanHealthRiskAssessmentConceptPaper”2000 ToxicologyExcellenceinRiskAssessment,“LifetimeEstimateofSkinCancerRiskfromuseofCoalTarContaining
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