Wednesday, July 30, 2008

Heavy Metal: Not so Great

The department of ecology and evolution at Stony Brook University has been studying fish found in the Hudson river.

The results are encouraging. Their mercury level is going down. In fact, the strong decline in mercury levels has occured over the past three decades, and represents a two- to three-fold decline.

It looks like the coordinated efforts to clean things up are working, but there's still a ways to go. Mercury concentrations increased as the researchers went north. It suggests a source upstream. I, for one, am in favor of finding and eliminating the upstream mercury source.

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The header image is adapted from a photo taken by Bill McChesney and used under a creative commons license.
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