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Risk Assessment and Monitoring for Environmental Chemicals

Risk Assessment and Monitoring for Environmental Chemicals

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Risk Assessment and Monitoring for Environmental Chemicals

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  1. Risk Assessment and Monitoring for Environmental Chemicals Prachathipat Pongpinyo THAILAND

  2. Researh and development of material in agriculture such as soil, water and fertilizer • Analysis service • Consult and certified the other laboatories • Research and study in nuclear agrochemical • Cooperate with another institute

  3. Purpose for attending this course • Gain knowledge of Risk Assessment • Relates to my work • To know more analysis methods

  4. What I have studied??? • “Silent Spring” & “Our Stolen Future” • Endocrine Disrupting Chemicals • Naturally or Synthesis substances • Effect to human • Can change sex in some species • Concentrate through the food chain

  5. Food Safety • Calculate by Acceptable Daily Intake value (ADI) • Study of toxicity of each substances • Pesticide safety evaluation committee • Endocrine Disruptor suspected pesticide

  6. Maximum Residue Limit (MRLs) • Related to the ADI value • Set up for each pesticides • Good Agricultural Practice (GAP) • Decrease the effect of pesticide • Reduce the dosage volume • More effective control • Safety assessment of pesticide • How to conserve the environment…

  7. Dioxins, PCBs, CFC • Remain in the environment for a long time • Accumulated in the body of living creature • Concentrate through the food chain • How to conserve and sustain the environment

  8. Registration of new pesticides • Eco-toxicological effect study • Environment fate study • Ecological risk assessment toxicity exposure ratio • Study of distribution, effect and fate of man-made organic substances

  9. Bio accumulation in the environment • Accumulation of Organochlorines in river water and sea water • Accumulation of Organochlorines in stripped dolphin • Accumulation of Organochlorines in plankton in Osaka bay area

  10. Treatment of agro-chemical compounds • Degradation of Organophosphorus by bacteria • Isolation of TCP degrading bacteria from river water and properties of bacteria • Degradation of TBT by the bacteria in the river water, sea water and isolation of TBT degrading bacteria from the river water.

  11. Solid waste management Incineration • Reduce mass • Deodorization • Detoxification Exhaust treatment is require for eliminate particulate matter such as HCl, SO2, NO2, dioxins and heavy metals

  12. Alternative way to reduce dioxins • Control the temperature to above 850C • Activated carbon • Active coke reactor • Dioxin catalyst

  13. Consideration of waste management policy • Current status of waste treatment/disposal • Responsibility of waste • Treatment and disposal technique for hazardous waste • Source of emission

  14. Metabolism of pesticide in plant study • Extrapolate toxicity effect in human from animals study • in vivo study use labeled compound and inject into animal • Pesticide and metabolite have different toxicity properties • in vitro study is for the metabolism study such as a cell culture

  15. Soil Study • Prediction half-life of pesticide • Clay type hold more pesticide than sandy soil • Leaching test; the herbicide was contained in mineral soil than volcanic ash soil • NO3 caused a meehemoglobinemia disease

  16. Practice/Observation • GC, GC-MS • LC, LC-MS • UV-Vis spectophotometer • Portable devices such as pH, DO, CO, CO2, conductivity • AAS

  17. Hyogo Prefecture Technology Center on Agriculture, Forestry and Fisheries (HPTCAFF) • Analysis of heavy metals in soil and compost • Nitrate analysis in vegetables • Water quality assessment in agriculture • Study of effect of pesticide on soil microbial biomass • Pesticide residue analysis • Rapid analysis

  18. KOBE Quarantine Station • Simultaneous analysis of pesticide residue in fruits and vegetables • Simultaneous analysis of pesticide residue in Cereals, Beans and Seeds • GC-MS for screening and fast analysis • Principle of Good Laboratory Practice (GLP) • Confirm the result with GC

  19. Hyogo Prefectural Institute of Public Health and Environmental Sciences (HPIPHES) • PCBs ELISA kit • Analysis of PCBs in sediment sample • Comparison analysis of pesticide in water between SPE and LLE • Analysis of heavy metals in industrial waste • Inspection kit for CN, NH3 in water

  20. Multi component simultaneous pesticide analysis in domestic and imported food by GC-MS and LC-MS • Total hardness of natural drinking water  related to taste of drinking water • Analysis of potassium permanganate • Measuring of mass concentration of ambient particulate matters (PM10)

  21. KOBE University • ELISA practice and analysis technique • ELISA kit; Tube and Microplate types • ELISA analysis for pesticide (Alachlor)

  22. Useful Subject to solve the problem in Thailand • Pesticide registration system • Analysis of environmental sample • Good Agricultural Practice • Good Laboratory Practice • Waste management

  23. Action Plan • Report to the Department of Agriculture • Implement of GLP • Propose for implementation and adaptation • Review • Training • Propose for up-to-date instrument