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자료유형
학술저널
저자정보
저널정보
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제19권 제3호
발행연도
2016.1
수록면
163 - 170 (8page)

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This study was conducted to evaluate lead(Pb) pollution near a zinc smelter using Pb stable isotopes as environmental tracers. Environmental samples such as air particles, precipitation, soils, conifer leaves, and tree rings were analyzed; input and output materials were also collected from the zinc smelter. The 207Pb/206Pb ratios of the output materials from the zinc smelter were in the range of 0.865-0.881, and plotted on a mixing line with zinc ores from South America and Australia as the two end-members. The 207Pb/206Pb ratios of air particles, precipitation, and conifer leaves were in the ranges of 0.822-0.887, 0.853-0.882, and 0.866-0.877, respectively, and fall within the line attributed to the smelter. In contrast, the 207Pb/206Pb ratios of soils fell within a broader range of 0.694-0.893. Soils with a higher 207Pb/206Pb ratio of 0.850 were plotted on the smelter line and showed high Pb concentrations of 207.5±141.9 mg/kg. Soils with a lower 207Pb/206Pb ratio of 0.850 were plotted on the Korean ore line and showed low Pb concentrations of 60.5±44.2 mg/kg. The 207Pb/206Pb ratios of tree rings showed an increasing trend toward the isotopic composition of emission gases, implying that the source of Pb pollution changed from the local mine to the zinc smelter.

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