폐광산지역 토양에서 중금속과 PAHs 농도 분포 상관관계
Distribution Correlation between Heavy Metals Contaminants and PAHs Concentrations of Soils in the Vicinity of Abandoned Mines
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초록
BACKGROUND: Heavy metals contamination of soils inthe vicinity of abandoned mines in South Korea has beeninvestigated. However, PAHs contamination rarely hasbeen studied. Both heavy metals and PAHs concentrationshave been measured in this study. METHODS AND RESULTS: The samples of soil andsediment were collected from the vicinities of threeabandoned coal mines and two abandoned metal mines foranalysis of heavy metals contaminants and PAHsconcentration from April to September 2012. Afterpreparation of these samples following the Korean standardtest method for soils, the concentrations of heavy metalscontaminants and PAHs were measured using ICP-OESand GC-MS, respectively. It was observed that theconcentration of Arsenic was above the concern level basedon ‘area 1’ suggested by Korean soil conservation law,resulting that Arsenic is the main contaminant in theseareas. Also Cd, Cu, Pb and Zn were observed as a partialcontaminants. The concentrations of other investigatedcomponents including benzo(a)pyrene were less than theconcern level. CONCLUSION: The correlation observed betweenArsenic (as main contaminant) and PAHs concentrationssuggested that the contaminant source and pathway aredifferent for each other. The effect of mine activity on PAHsconcentration was rarely observed.
Abstract
BACKGROUND: Heavy metals contamination of soils inthe vicinity of abandoned mines in South Korea has beeninvestigated. However, PAHs contamination rarely hasbeen studied. Both heavy metals and PAHs concentrationshave been measured in this study. METHODS AND RESULTS: The samples of soil andsediment were collected from the vicinities of threeabandoned coal mines and two abandoned metal mines foranalysis of heavy metals contaminants and PAHsconcentration from April to September 2012. Afterpreparation of these samples following the Korean standardtest method for soils, the concentrations of heavy metalscontaminants and PAHs were measured using ICP-OESand GC-MS, respectively. It was observed that theconcentration of Arsenic was above the concern level basedon ‘area 1’ suggested by Korean soil conservation law,resulting that Arsenic is the main contaminant in theseareas. Also Cd, Cu, Pb and Zn were observed as a partialcontaminants. The concentrations of other investigatedcomponents including benzo(a)pyrene were less than theconcern level. CONCLUSION: The correlation observed betweenArsenic (as main contaminant) and PAHs concentrationssuggested that the contaminant source and pathway aredifferent for each other. The effect of mine activity on PAHsconcentration was rarely observed.
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