On May 8, 2015, a representative from Chiang Rai Provincial Fisheries Office spoke about the results of the first round of fish sampling in the Kok River, which did not find heavy metals such as arsenic exceeding the standard.
While collecting fish samples for the second time in the Kok River, in the upstream areas (Ban Pong Na Kham, Doi Hang Subdistrict - Ban Karen Ruam Mit, Mae Yao Subdistrict, Mueang District), midstream (Chiang Rai Weir, Ban Pa Yang Mon - Saphan Kham, Wiang Chai District) and downstream (Chiang Saen District), samples of 2 types of fish were collected: plant-eating fish and carnivorous fish, in order to obtain samples for comparison. The results of the second round of testing have been sent to Chiang Mai Province for testing and are awaiting results. สล็อต เว็บตรง