1. Risk Assessment and Monitoring for Environmental Chemicals SURIN AREE Environmental Scientist Thailand

2. Treatment Technologies o Secure Landfill n Drums containing chemicals solution were damaged at Hua Hin Airport n Resulted to soil contamination n Dioxins, pesticides, arsenic and Dicamba were identified n Contaminated soil was contained on-site by excavation and placing in secure landfill

3. My Experience on Risk Assessment and Monitoring Environmental Chemicals o Establish Groundwater and Soil Quality Standards n Groundwater quality standard become the regulation in October 2000 n The limitations of VOCs, heavy metals, pesticides and others [CN -, PCBs, benzo(a)pyrene] n Soil quality standard is on the process to be a legislation

4. My Experience on Risk Assessment and Monitoring Environmental Chemicals (continued) o Monitor Chemical Contaminants Leaching from Municipal Landfills n Groundwater in monitoring wells was collected, analyzed, and compared to groundwater standard for drinking purposes n Parameters analyzed: heavy metals

5. My Experience on Risk Assessment and Monitoring Environmental Chemicals (continued) o Develop Contaminated Site Management Guidelines