CHIANG RAI – Thailand’s Department of Disease Control (DDC) is expanding its health surveillance program to protect residents living near arsenic-contaminated waterways in Chiang Rai province. Health officials are focusing on individuals facing moderate to high risks of chemical exposure along the Kok, Sai, Ruak, and tributary rivers. This second-year campaign now spans 18 districts […] The post Health Officials Monitor Arsenic Exposure Risks in…