Heavy Metals Found In Chiang Mai Water And Soil

Chemist and environmental scientist Van Viria and students from Chiang Mai University found that regional river water is contaminated with heavy metals. Farmers reported they can no longer use river water for irrigation and must rely solely on groundwater. One farmer stated that using contaminated river water would poison crops and make them unsellable. The farmer called for immediate assistance from responsible authorities. Testing is being conducted on water, sediments, soil, and agricultural products. Samples were taken from seven different locations to assess the extent of contamination. The source noted that the presence of these metals was found as testing progressed closer to specific areas. The tests identified heavy metals including arsenic, chromium, and nickel. Contamination levels increase in proximity to the border with Myanmar. The study was conducted in collaboration with the American Research Institute Center.