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Study Shows Viruses in Drinking Water
A new study of 14 Wisconsin communities that do not disinfect their water revealed the presence of human viruses in drinking water in nearly one-quarter of all samples taken.

The results suggest that people in municipalities that don't treat their water systems may be exposed to waterborne viruses and potential health risks, the study concluded.

The likely virus source was leaking wastewater sewers, the study concluded. The viruses from human waste traveled through the soil and flowed into groundwater, which is the source of drinking water for the communities. In some cases viruses in the soil could have flowed into cracked water pipes of homes.

Nationally, the authors reported, there are 95,600 drinking water systems serving 20 million people that do not disinfect their water. The Environmental Protection Agency reported in 2006 that an estimated 57 million people drink treated groundwater that does not meet a federal goal of reducing viruses by nearly 100%.


 
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Food Chain Manipulation Improves Lakes - Research has shown that changes in the food chain of an ecosystem like lakes can be manipulated and improved by making changes in key parts of the food chain. The moments in time where a change happens is called a “regime shift”. On a grander scale, this knowledge could be used on other ecosystems such as forests, grasslands, and deserts.


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