DOI:10.29111/ijlrst ISRA Impact Factor:3.35, Peer-reviewed, Open-access Journal
Research Paper Open Access
International Journal of Latest Research in Science and Technology Vol.5 Issue 3, pp 31-36,Year 2016
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Received : 10 June 2016; Accepted : 20 June 2016 ; Published : 30 June 2016
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Article No. | 10660 |
Herbicides make up a large percentage of the synthetic pesticides used to enhance the agricultural productivity, and atrazine is one of the most commonly used herbicide in the United States. Once being applied either as a pre- or post-emergent herbicide, atrazine can be leached from the soil by dissolving in irrigation or rainwater. Hence, atrazine can contaminate natural waters such as drinking water, aquifers, and shallow groundwater beneath agricultural areas. In addition to its impact on fish, atrazine has potential short term and long term health effects in humans. The major objective of this study was to determine the effectiveness of a constructed wetland in reducing the level of atrazine in agricultural runoff. Water samples were collected after rain events over a one-year period from a wetland constructed to collect 85% of the pasture and cultivated field runoff from a large agricultural research station. The samples were prepared by solid phase extraction, and the concentration of atrazine was determined by HPLC. The results showed that the changes in the concentration of atrazine in the runoff generally paralleled the changes in the amount of rainfall that occurred just prior to sampling, indicating that rainfall leached the herbicide from the soil. Atrazine was detected in all samples on dates at the wetlands, suggesting that rainwater leached the atrazine in high amounts into the surface water; however, the constructed wetland was effective in reducing the atrazine concentration by a significant 52% before it reached the nearest public water.
Copyright © 2016 Om Devkota et al. This is an open access article distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Om Devkota, Dalton Gossett, Cran Lucas, Stephen Banks, Patrick Colyer , " Reducing Atrazine Concentrations In Agricultural Runoff Through The Use Of A Constructed Wetland ", International Journal of Latest Research in Science and Technology . Vol. 5, Issue 3, pp 31-36 , 2016
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