Poison fish

Farm-raised fish in the Tonle Sap river ... were poisoned and almost 50-ton of them died during the night of 14 May, the fishes are still dying as of now. Fish farmers blamed the death of the fishes on the dumping of pollutants into the river by the SKD winery company located in Kilometer 6.

the dead fishes were taken to sell at the market while some others are frozen to later sale.

Reports indicated that along the Mekong and the Tonle Sap rivers, numerous factories are dumping pollutants into the rivers, these cause a serious pollution to the environment (Source)

Yes you read that right, the poisoned fish are being sent to the market to be sold. From there it will end up in the homes and restaurants of Phnom Penh. The report contains no details about the specific pollutants but something that kills 50 tons of fish cannot be great for anyone's health. Indeed the poison may effect humans too. Hospitals beware.

It really doesn't matter if there are laws on the sale of poisoned food. About two weeks ago a text did the rounds. A herd of cattle had died under mysterious circumstances and people were being warned not to eat beef. It comes to a point that you eat whatever you want regardless of rumours. If you get sick, well that's life. You go to the doctor and get some ciprofloxacin for the parasites or medevac'd to Bangkok. However, I think I'll give the fish a miss.