폐광산 배수와 퇴적물의 중금속 오염과 생물독성 평가 : Assessment of Heavy Metal Contamination and Biological Toxicity of Mine Drainages and Sediments from Abandoned Mines
Assessment of Heavy Metal Contamination and Biological Toxicity of Mine Drainages and Sediments from Abandoned Mines
- 주제(키워드) Abandoned mine , Biological toxicity , Heavy metal , Mine drainage , Sediment , Abandoned mine , Biological toxicity , Heavy metal , Mine drainage , Sediment
- 발행기관 한국물환경학회
- 발행년도 2007
- 총서유형 Journal
- UCI G704-000646.2007.23.2.017
- KCI ID ART001047612
초록/요약
Heavy metal contamination and biological toxicity of mine drainages and sediments in abandoned mines were studied. Mine drainages had pH at a range of 2.94~7.86, and contained heavy metals at a toxic level. For coal mines, toxicity of mine drainage to Daphnia magna was attributable to acidic pH. In addition to the low pH, suspended heavy metals such as Zn and Cu contributed to toxicity of mine drainages at abandoned metalliferous mines. All mine sediments studied in this work showed biological toxicity to Chironomus riparius, having mortality at a range of 15~60%. However, its relationship with physicochemical properties including heavy metal content of the sediments was not statistically explained. Exceptionally clay (< 2 μm particle) content was negatively correlated with the biological toxicity for sediment samples collected at the same abandoned mines.
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