Eutrophication threatens 10 million residents of Shanghai

25 August 2012

Shanghai’s major source of drinking water to 10 million residents, is under threat from the effects of uncontained eutrophication. The condition of the water at the mouth of the Yangtze River, where the Qingcaosha Reservoir is located, is threatened mainly by chemical plants along the river, such as the Japanese paper mill in neighboring Jiangsu Province.  The reservoir was completed as recently as 2010, at a cost of US$2.7 billion.

Lake users and residents at Kehiwin Lake, Bonnyville, Alberta, have been warned to take care as the lake has an algal bloom.  Just down south, in Washington State, Gibbs and Anderson Lakes have been closed.  The concentration of microcystin in Gibbs Lake was the highest yet recorded.  Anderson Lake has been closed before and has that nasty problem with very high levels of neurotoxins.

Some lakes in Oklahoma are under advisories or warnings: Copan Lake posted a BGA alert Friday.  You also can’t go in the water at Post Oak Beach. Lake Keystone, Tenkiller, Eufaula and Ft. Gibson also have BGA alerts posted.  By the way, don’t forget that Oklahomans can check the conditions at their favourite lake at checkmyoklake.

There are a number of advisories for Massachusetts, including Dean and Jordan ponds. In Kansas McPherson County State Fishing Lake has been placed under an advisory by the Kansas Department of Health and Environment for toxic blue-green algae, and Logan City Lake in Phillips County remains under a warning, according to a news release from KDHE.  In Connecticut, an outbreak of toxic blue-green algae has forced town officials to close Indian Notch Park early and post a no-swimming advisory for Bolton Lake.


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