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자료유형
학술저널
저자정보
저널정보
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제21권 제3호
발행연도
2018.1
수록면
148 - 153 (6page)

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In this study, mineral springs were monitored to determine whether they are being contaminated by rainfall onto microorganisms. In addition, the sterilization efficiency of an ultraviolet sterilizer used in various mineral springs was investigated. It was observed that the incongruity rates of total coliforms, fecal coliforms, and heterotrophic plate counts were 64.8%, 20.1%, and 11.4% respectively. In July, when rainfall was high, the incongruity rates of microorganism-related characteristics were at their highest (76%), suggesting that changes in precipitation were directly related to incongruity rates of microorganism-related characteristics within mineral springs. A T-test result of 0.002 (p<0.05, significant, 2-tailed) between the clay contents of soil in the valley and those of a control soil suggested that the possibility of underground penetration of soil in the valley is higher than that of general soil. Results of the sterilization test showed that E. coli was inactivated at the time of contact with an ultraviolet intensity of 10,000±20 µW/cm2 for at least 3 seconds and no photorecovery was observed.

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