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KMID : 1156220140400010047
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Journal of Environmental Health Sciences
2014 Volume.40 No. 1 p.47 ~ p.54
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Water Quality Monitoring through Tube-Well Survey at Foot-and-mouth Disease Carcass Disposal Sites
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Huh In-Ryang
Kim Kei-Woul
Choi Geum-Jong
Lee Tax-Soo
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Abstract
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Objectives: The purpose of this study is to evaluate the characteristics of leachate discharged from livestock burial sites in Gangwondo resulting from foot-and-mouth disease by monitoring the water quality at the survey tube-wells installed near livestock burial sites in order to investigate the effect of the leachate on the quality of nearby underground water and suggest a water pollution level in accordance with water quality evaluation
criteria.
Methods: To minimize the secondary environmental pollution damage caused by leachate at burial sites of livestock killed by foot-and-mouth disease, this study analyzed the leachate directly discharged from burial sites and installed survey tube-wells within 300 meters of livestock burial sites and investigated water quality as a means to ascertain the environmental effect of the leachate from the burial sites. In accordance with environmental management guidelines on livestock burial sites, this research investigated the water quality in the survey tube-wells in fifty five burial sites in Gangwondo. The elements investigated were NH3-N, Cl?, NO3-N, conductivity, and E. coli. Water quality was monitored from 2011 to 2013.
Results: The water quality from the drain pipe at the location of leachate from livestock burial sites showed BOD 37,209 mg/L, COD 8,829 mg/L, NH3-N 3,633 mg/L, and Cl- 580 mg/L. According to the monitoring results of water quality (Cl-, NH3-N, conductivity) at the survey tube-wells, there was suspicion that 13 out of 55 burial sites discharged leachate, five sites discharged highly concentrated leachate (13%): one in Gangneung, one in Wonju, and three in Cheorwon.
Conclusion: It was judged that out of thirteen observation wells which showed a possibility of discharged leachate, three survey tube-wells have established the discharge effect of leachate at burial sites up to recently. Therefore, it is judged that it is necessary to continue monitoring them and devise additional measures.
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KEYWORD
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Foot-and-mouth disease, Leachate, Survey tube-well at carcass disposal site
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