The waters at these hot spots contain higher levels of methylmercury (CH3Hg+), the species of mercury that accumulates in organisms. Methylmercury is produced by methylation of the mercuric ion (Hg2+) ...

At the bottom of the food chain, bacteria here transform this mercury into a highly toxic form called methyl mercury. As tiny organisms feed, they take in the methyl mercury of their prey and ...

The neurotoxin is an extremely poisonous compound of mercury that has the potential to bioaccumulate in fish and animal tissues. Yukon government biologists detected the toxin at four sites along ...