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Aquaculture Chemicals are Polluting Chilean Rivers
After previous studies showed dirty, sediment filled waters were harming Chilean rivers, regulators forced aquaculture operations to do a better job of filtering and cleaning their waste water.

Most fish farms draw water from clean Chilean rivers and return the waste water downstream. New rules have ensured that wastewater is now much less turbid, but new research shows many chemicals -- the remnants of fish and food waste, as well as antibiotics and disinfectants -- still bypass the installed filters.

Analysis, detailed in the journal Scientific Reports, showed aquaculture wastewater significantly increases the concentrations of carbohydrates and proteins -- as well as their more basic chemical building blocks -- into the river.



 
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Troubles Run Deep for Wisconsin Waters - The Wisconsin DNR cites that ¼ of more than 700 bodies of water which fail to meet water quality standards do so because of high levels of phosphorus. The Department of Health Services cites 26 cases of algae-related illnesses between 2009 and 2011 in Dunn County, which originated from Tainter Lake. Blue-green algae has been found in Lake Winnebago, which supplies drinking water to Appleton, Neenah, Menasha and Oshkosh.


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