13 Oct '11, 10pm

Toxic Algae Bloom in Lake Erie [image] #NASA

The green scum shown in this image is the worst algae bloom Lake Erie has experienced in decades. Such blooms were common in the lake’s shallow western basin in the 1950s and 60s. Phosphorus from farms, sewage, and industry fertilized the waters so that huge algae blooms developed year after year. The blooms subsided a bit starting in the 1970s, when regulations and improvements in agriculture and sewage treatment limited the amount of phosphorus that reached the lake. But in 2011, a giant bloom spread across the western basin once again. The reasons for the bloom are complex, but may be related to a rainy spring and invasive mussels. The Landsat-5 satellite acquired the top image on October 5, 2011. Vibrant green filaments extend out from the northern shore. The bloom is primarily microcystis aeruginosa, an algae that is toxic to mammals, according to the Great Lakes Envi...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=76127&s...

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Toxic Algae Bloom in Lake Erie Worst in Decades

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Blooming Lake Erie. Photo Credit: NASA EO Pure Michigan is a slogan used in the Great Lakes State, to bring in tourists an...

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