Examine samples of “Kok River fish”

After the research team from Naresuan University collected samples of water, sediment and fish from the Kok River today (June 2, 2015), they began examining samples in the lab to find the accumulation of heavy metals. In addition to indicating "signs of disease", it also indicates "sources of pollution" that may be linked to gold mining or rare earth mines in the upstream area. สล็อต