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A Long-term Monitoring of Water Quality at Chongok Cave  

Jun, Byonghee (Kangwon National University, School of Fire & Disaster Prevention)
Publication Information
Journal of the Korean GEO-environmental Society / v.14, no.9, 2013 , pp. 13-19 More about this Journal
Abstract
The Chongok karst cave which is located in Donghae-city, has high tourist and educational value due to existence of many doline(sink hole). Whereas this cave is easy to approach for the tourists, because this cave is located near the downtown, a high environmental riskiness such as sewage flowing has been also involved. In study, we observed the variation of water quality with long-term monitoring and investigated the possibility of existence of impact factor to water eco-system and determined the proper long-term monitoring factor among many monitoring criteria. The groundwater quality was maintained in the range of about $14^{\circ}C$ in temperature, over 10mg/l in dissolved oxygen and 7-8 in pH, so the impact factor in water eco-system was not observed. The guide line to make sure of tourist safety was determined to 60mm/d as daily rainfall. The conductivity was suggested to main factor for long-term monitoring main factor and pH/turbidity was suitable for the supplementary factor. For the seasonal variation monitoring, ORP was recommended.
Keywords
Karst cave; Water environment; Rainfall; Long-term monitoring;
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