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Pesticide Use Causes Undesirable Effects to the Natural Environment
An evaluation of herbicide pollution in the Kerian Ricefields of Perak, Malaysia has determined that residues of 2,4-D and paraquat in the ricefield soil and surface water of the drainage canals leached downward to the depth of 5cm on the first day after treatment.

The use of pesticides in the agricultural sector in Malaysia, which have heavy rainfall, high humidity and high temperatures, has seen increased use of pesticides over the years. The use of pesticides and herbicides is required for successful rice cultivation with is the dominate crop.

Water samples collected from selected points in the drainage canals of the paddy fields were found to be highly polluted with 2,4-D as compared to paraquat. The research concluded that it is important to monitor the presence of pesticides in freshwater bodies because hazardous effluents from paddy fields directly drain into them and they are the most important sources of pesticide contaminate in coastal environments.

 
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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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