risk assessment and monitoring of environmental chemicals corazon vidad philippines
TRANSCRIPT
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RISK ASSESSMENTANDMONITORING OF ENVIRONMENTAL CHEMICALS
CORAZON VIDADPhilippines
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I. PURPOSE FOR ATTENDING THIS COURSE
• Learn about risk assessment technology for environmental contaminants and their impact;
• Learn the principles and techniques for monitoring of environmental chemicals detected from environmental resources and agricultural products;
• Gain analytical techniques and skills in instrument and immunoassay methods.
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II. What you have studied mainly on environmental science and technology in this course?
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Collection of samples
• Soil• River water• Soil gas• Particulate matter
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Sample preparation procedures• Extraction • Filtration • Column chromatography • Evaporation • Homogenization• Solid phase extraction • Liquid-liquid extraction• Centrifugation
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Analysis of Samples
SOIL
SEDIMENT
Residue analysis of herbicides
Measurement of ATP Content
GC/MS–Ion trap type
Luminometer
Rapid analysis of soil Colorimetric
Heavy Metal – Cu, Zn, Cd
Atomic absorptionICP
Polychlorinated biphenyls GC-ECD
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WATER• Tap• River• Pond• Agricultural• Treated • Domestic
Wastewater
pHECDOCODPO4-P
NO3
NO3NO2ClSO4
Pack Test
RQ Flex
Ion Chromatograph
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WATERAnalysis of surfactants (LAS) HPLC
ELISA Kit
Heavy metals – Cd, Pb, As
Boron
Atomic Absorption
UV-VIS Spectrophotometer
Pack TestToxic substances – Phenol Free cyanide Ammonium
Potassium Permanganate Consumption
Total hardness Titration
Chemical Oxygen Demand
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Recovery of 5 pesticides GC/MS
Volatile organic compounds
GC/MS Head SpaceMethod
WATER
Endocrine Disrupting Chemicals17B Estradiol
Bisphenol A
Alachlor
ELISA
ELISA Kit
ELISA Kit HPLC
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VEGETABLES• Komatuna• Spinach• Paprika• Corn • Cucumber• Okra • Beans• Paprika
NO3 concentration RQ Flex
Recovery test Of 5 pesticides
GC/MSMulti-residue Analysis of 229 pesticides
GC/MS
LC/MS
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AIR
PLASTIC TOY
Soil pore air VOC Detection tube (screening)GC/MS Or GC-Photo Ionization Detector
Particulate Matter
Measurement of PM10
Low Volume Sampler
Chemical Oxygen DemandPotassium Permanganate Consumption
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III. WHICH SUBJECT MOST USEFUL TO SOLVE ENVIRONMENTAL PROBLEMS IN YOUR COUNTRY?
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Recycling Oriented SocietyMaterial
CirculationReduce
Consumption
Reduce environmental
burden
Solid Waste Management in Japan
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INSTITUTIONAL MECHANISM
Waste Management
Law
Law for Promotion & Effective Utilization
of Resources
Set up of processing facility
Effective utilization of facilities
Strict regulation/stiffer penalties
Clear definition of roles
Subsides and financial assistance
Containers and packages
Home appliances
Construction materials
Food wastes
End of life vehicles
Use of available technologies
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Society capable of Sustainable growth
Creating harmony With economy and nature
DEVELOPMENT THAT MEETS THE NEEDS OF THE PRESENT W/O COMPROMISING THE ABILITY OF
FUTURE GENERATION TO MEET THEIR OWN NEEDS
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Ecological Solid Waste Management Act of 2002
National Solid Waste Management Commission
Provincial Solid Waste Management Board
City/Municipal Waste Management Board
National Ecology Center
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CALABARZON REGION Total land area 1,622,861 hectaresTotal number of municipalities 142Total number of cities 10Population (2001) 10,782,607
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2001 2004 2006
Open Dumps Controlled Dump Sanitary Landfill
88 open dumps 27 proposed sites 3 sites with EnvironmentalCompliance Certificate
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IV. ACTION PLAN
• Make a feed back report to Regional Director, and submit report to National Economic Development Authority
• Expand and improve the monitoring of drinking water quality
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ACTION PLAN
Make proposal Philippine National Standards on Drinking Water Revision Committee to:
Widen the scope of monitoring to include the standards for total trihalomethane, VOCs, surface active agents, and disinfectant by-products
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ACTION PLAN
• To identify critical areas where activities are potential sources of contamination of groundwater, through coordination with Environment Department;
• Prioritization of identified sites based on the nature/type of industry, proximity to waste dumping sites, presence of groundwater source and number of households using the water facility;
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ACTION PLAN
• In areas identified to be high risk for contamination, to evaluate other parameters not listed in the Philippine National Standards for Drinking Water that may have endocrine effects
• Preparation of drinking water quality monitoring plan by province.
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ACTION PLAN
• Proposed upgrading/improvement of existing government water laboratories.
• Inventory of water laboratory instruments
and training needs assessment of laboratory personnel;
• To prepare budgetary requirements, and make necessary requests, solicit donations from private entities and non-government organizations,
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ACTION PLAN
• Capability building of laboratory personnel, to use ELISA technique and other methods required based on the availability of instruments. Preparation of training modules and conduct of practical trainings will be done through coordination with DOH – East Avenue Memorial Medical Center National Reference Laboratory.
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ACTION PLAN
• Establish networking with other agencies through Regional Inter-Agency Committee on Environmental Health in the analysis of samples requiring sensitive analytical instruments, e.g. for pesticides: Department of Agriculture - Pesticides Analytical Laboratory, metal ions, VOCs: DENR/EMB.
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ACTION PLAN
• To recommend to the Regional Health Director, provincial governors/ provincial health officers to subject all private water laboratories analyzing bottled water and product water from water refilling stations to undergo external proficiency tests. Proficiency test will be conducted by DOH National Reference Laboratory or any reputable private analytical laboratory recommended by DOH Central Office.
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ACTION PLAN
• To purchase basic instruments and glassware, reagents and supplies necessary to implement the agreed monitoring plans
• In the absence of highly sensitive analytical instruments such as GC/MS, HPLC, to make use of simplified water inspection products for screening tests on Al, As, B, Ca, chloride, residual chlorine, free cyanide, Cr6+, Cu, F, Fe, formaldehyde, , Mg, Mn, NO3, NO2, pH, phenol, total hardness, Zn,
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ACTION PLAN
• To recommend the use of enzyme linked immunoassay kits in evaluating compounds which have endocrine effect such as estrogen, compounds which are used as raw materials for surfactants (bisphenol A, LAS), organochlorine compounds with thermal properties (PCBs) and other agricultural chemicals with known toxicities (Alachlor, Atrazine).
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