Tag Archives | water contamination

Lake Michigan Contaminated With Prescription Drugs

simpsons-fishDrugs in the water at Lake Michigan:

Via Scientific American:

Prescription drugs are contaminating Lake Michigan two miles from Milwaukee’s sewage outfalls, suggesting that the lake is not diluting the compounds as most scientists expected, according to new research.

“In a body of water like the Great Lakes, you’d expect dilution would kick in and decrease concentrations, and that was not the case here,” said Dana Kolpin, a U.S. Geological Survey research hydrologist based in Iowa.

It is not clear what, if any, effects the drugs are having on fish and other creatures in Lake Michigan. But this ability to travel and remain at relatively high concentrations means that aquatic life is exposed, so there could be “some serious near-shore impacts,” said Rebecca Klaper, an associate professor at the University of Wisconsin-Milwaukee and senior author of the study published in the journal Chemosphere.

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‘Super Sand’ Cleans Dirty Drinking Water

Sand has been used as a purifier for thousands of years. An innovative way of cleaning water, by adding graphite waste, provides a cost affective way to bring purified water to those who may not normally have access to a clean water source. Via Treehugger:
The solution is cheap since the sources of graphite could include the waste produced by graphite mining companies that still contains a significant amount of graphite. And the researchers believe that it is possible to modify the graphite oxide to pick out particular pollutants and therefore tailor the super sand to specific areas that might be having trouble with certain water-borne diseases or pollutants.
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