北极峡湾系统对铅锌矿开采和海底倾倒矿渣的长期响应（西格陵兰，马默鲁利克）。
Long-term response of an arctic fiord system to lead-zinc mining and submarine disposal of mine waste (Maarmorilik, West Greenland).
机构信息
Department of Arctic Environment, National Environmental Research Institute, Aarhus University, Frederiksborgvej 399, DK-4000 Roskilde, Denmark.
出版信息
Mar Environ Res. 2011 Jun;71(5):331-41. doi: 10.1016/j.marenvres.2011.03.001. Epub 2011 Apr 13.
Contamination by lead (Pb) and zinc (Zn) was studied in seawater, sediments, seaweeds and blue mussels near the former Black Angel Pb-Zn Mine in Maarmorilik, West Greenland. The mine operated during the period 1973-90 when mine waste (tailings and later waste rock) was discharged directly into the sea. Metal concentrations peaked during the mining period and Pb and Zn in seawater within the discharge area were measured up to 440 and 790 μg L⁻¹, respectively. Pb in fiord sediments, seaweeds and blue mussels just outside the discharge area were measured in concentrations up to 190, 84 and 2650 and Zn up to 300, 360 and 1190 μg g⁻¹ dry wt., respectively. Within the discharge area, seawater metal concentrations (especially Pb) decreased abruptly after mine closure. Metals concentrations in sediments and biota, however, decreased more slowly and two decades after mine closure seaweeds and blue mussels were still contaminated 12 km from the mine.
在格陵兰岛西部马莫里克的前黑天使铅锌矿附近的海水、沉积物、海藻和贻贝中研究了铅（Pb）和锌（Zn）的污染情况。该矿于 1973 年至 1990 年期间运营，当时矿渣（尾矿和后来的废石）被直接排入大海。金属浓度在采矿期间达到峰值，排放区的海水中 Pb 和 Zn 分别高达 440 和 790μg/L。在排放区外的峡湾沉积物、海藻和贻贝中，Pb 的浓度高达 190、84 和 2650μg/g，Zn 的浓度高达 300、360 和 1190μg/g（干重）。在排放区，矿山关闭后，海水中金属浓度（尤其是 Pb）急剧下降。然而，沉积物和生物群中的金属浓度下降得更缓慢，在矿山关闭 20 年后，贻贝和贻贝仍受到污染，距离矿山 12 公里。
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