houston strategic health effects research panel sherpii maria t. morandi, ph.d., cih university of...

Houston Strategic Health Effects Research Panel

SHERPIIMaria T. Morandi, Ph.D., CIHUniversity of Texas-Houston

School of Public HealthSHERPII member

.

TCEQ/NUATRC Air Toxics Workshop

SHERP II2002 Focus• Epidemiology research

• Air toxics (HAPS)

• Houston-specific data

2005 Evolving Focus• Multidisciplinary research

– Env. Health Paradigm framework

• Air pollutants of concern in Houston-Galveston

• Exploit exposure and population characteristics that are unique to Houston in order to address key scientific question in the exposure-health effects continuum


Environmental Health Paradigm


SHERP II2002 Focus• Epidemiology research

• Air toxics (HAPS)

• Houston-specific data

2005 Evolving Focus• Multidisciplinary research

– Env. Health Paradigm framework

• Air pollutants of concern in Houston-Galveston

• Utilize exposure and population characteristics that are unique to Houston in order to address key scientific question in the exposure-health effects continuum


RIOPA AIR EXHANGE RATES(1/hr)

AIR EXCHANGE RATE (1/hr)

1.4269 .8800 1.4212 1.0019 1771.4065 .4800 6.4256 .5387 2171.3728 .8700 2.0800 .8977 2111.4007 .7200 4.1059 .7719 605

NJTXCATotal

Mean Median STD G. Mean N


RIOPA-Texas VOCs


RIOPA-Texas PM2.5 Concentrations (ug/m3)

STATS. OUTDOOR INDOORPERSONAL(ADULT)

EXPOSUREMean 14.39 15.74 36.92

Median 13.20 13.27 31.16

Minimum 5.18 3.01 3.89

Maximum 33.98 58.19 158.00

N 86 86 86


RIOPA-Texas: NON-PARAMETRIC CORRELATIONS FOR INDOOR, OUTDOOR AND PERSONAL CONCENTRATIONS OF PM2.5

INDOORPERSONAL

EXPOSUREKendall's

tau_bOUTDOOR Correlation

Coefficient 0.125 0.053

Sig. 0.088 0.467

INDOOR Correlation Coefficient 0.419

Sig. 0.000

Spearman's rho

OUTDOOR Correlation Coefficient 0.192 0.075

Sig. 0.076 0.493

INDOOR Correlation Coefficient 0.592

Sig. 0.000


RIOPA-Texas Outdoor and Indoor Gas- and Particle-Bound Concentrations of Selected

PAH's (ng/m3)

PAH

MEDIAN OUTDOOR MEDIAN INDOOR

GAS-PHASE PARTICLE-BOUND GAS-PHASE

PARTICLE-BOUND

Phenanthrene 15.193 0.031 25.355 0.028

Anthracene 0.751 0.003 0.973 0.003

Fluoranthene 3.093 0.027 2.385 0.030

Pyrene 2.237 0.030 2.292 0.035

Benzo[a]pyrene 0.002 0.034 0.002 0.015

Benzo[g,h,i]perylene 0.001 0.071 0.001 0.047


RIOPA-Texas: Personal time- location patterns (% time)

Mean

81.80 65.711.83 18.465.04 3.493.11 3.93.77 .32

1.10 .952.96 1.60

91.73 92.763.99 4.524.28 2.72

HOMESCHOOLINDOOR OTHEROUTDOOR-NEIGHBORHOODOUTDOOR AWAYCAR-WINDOWS OPENEDCAR-WINDOWS CLOSEDTOTAL INDOORSTOTAL OUTDOORSTOTAL IN CAR

ADULTS CHILDREN


RIOPA-Texas: Parent-Child Exposures (N=77)

STATS

Benzene Toluene p-Dichlorobenzene

PARENT CHILD PARENT CHILD PARENT CHILD Mean 5.04 4.52 18.51 16.96 170.87 151.26Std. Deviation 5.33 5.67 17.88 15.52 398.88 334.20Minimum 0.45 0.75 2.79 1.31 0.08 0.18Maximum 32.43 45.55 124.40 79.35 1656.40 1419.21%tiles 25th 2.01 1.94 7.53 7.24 1.55 1.92

50th 3.39 3.47 15.10 12.60 5.98 9.64

75th 5.59 4.95 22.91 19.64 69.48 71.97


SHERP II (continued)2002 Focus• Technical and

professional audience• Matrix of relevant

research studies in Texas

2005 Evolving Focus• Broader community of all

stakeholders• Matrix of research studies

and scientific resources in Texas

• Develop a Center for Environmental Health Studies


SHERP II

QUESTIONS?


RIOPA-Texas VOCs

houston strategic health effects research panel sherpii maria t. morandi, ph.d., cih university of...

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