Small amounts of selenium are needed by humans, but larger amounts can cause problems ranging from stomach upsets to…

Small amounts of selenium are needed by humans, but larger amounts can cause problems ranging from stomach upsets to nerve damage and cirrhosis of the liver. Studies show that, in fish, selenium can cause defects such as missing gill plates, curvature of the spine and reproductive failure. #bcpoli

https://thenarwhal.ca/teck-warned-of-federal-charges-under-the-fisheries-act-financial-documents-reveal/