Clarifying rates of methylmercury production

While volcanoes and forest fires release mercury, they are relatively small sources compared to the combustion of coal, oil, and other fuels. Mercury is toxic. Microbes turn mercury into a neurotoxin called methylmercury. ...

How we solved an Arctic mercury mystery

In the Canadian Arctic, a mystery has troubled scientists and local communities for decades: Why do marine animals in the western Arctic have higher mercury levels than those in the east?

Mercury rising—are the fish we eat toxic?

The amount of mercury extracted from the sea by industrial fishing has grown steadily since the 1950s, potentially increasing mercury exposure among the populations of several coastal and island nations to levels that are ...

Another problem with China's coal—mercury in rice

Mercury pollution is a problem usually associated with fish consumption. Pregnant women and children in many parts of the world are advised to eat fish low in mercury to protect against the adverse health impacts, including ...

Small gold mines in Senegal create high mercury contamination

A Duke University-led study has found dangerously high levels of mercury and its more toxic chemical cousin, methylmercury, in soils, sediments and rivers near artisanal gold mines in the West African nation of Senegal.

Mystery of the missing mercury at the Great Salt Lake

Around 2010, the deep waters of Utah's Great Salt Lake contained high levels of toxic methylmercury. Mercury measurements in waterfowl surrounding the lake led to a rare human consumption advisory for ducks.

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