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Old 08-06-2009, 06:55 PM   #1
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Default Urban Stream Pollution Can Be Good For Mosquitoes

Urban Stream Pollution Can Be Good For Mosquitoes
ScienceDaily (Aug. 3, 2009) Sewage overflows are a fact of life in urban areas, and in many cities, excess sewage water enters streams and lakes with rain runoff. Although this pollution is harmful to most organisms, there is one group of insects that thrives on it: mosquitoes.

Urban Stream Pollution Can Be Good For Mosquitoes
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Luis Fernando Chaves, a post-doctoral researcher at Emory University, and his team discovered mosquitoes in abundance in a sewage-contaminated stream in Atlanta, but rarely in a nearby clean stream. They also found that mosquitoes were largest in streams with high levels of organic minerals in this case, nitrogen and phosphorous that originated from the sewage treatment plants. Likewise, in laboratory experiments, mosquitoes reared in sewage overflow were larger than those reared in clean water.
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