湖泊特征揭示了加拿大最北端矿山附近湖泊的金属污染遗产，小康沃利斯岛，努纳武特

IF 0.9 4区地球科学 Q4 ENVIRONMENTAL SCIENCES

Arctic Pub Date : 2021-06-08 DOI:10.14430/ARCTIC72515

B. Sivarajah, N. Michelutti, Xiaowa Wang, C. Grooms, J. Smol

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引用次数: 1

摘要

我们比较了世界上最北端的贱金属（铅锌）矿Polaris矿附近三个湖泊的现代湖沼学特征，该矿于1981年至2002年在小康沃利斯岛（加拿大努纳武特）运营，与康沃里斯岛Resolute湾（Qausuittuq）的一组地点进行了比较。尽管这两个研究区域的地质条件大致相似，气候条件也几乎相同，但目前两个岛屿上的水化学变量存在显著差异。具体而言，北极星矿附近的湖泊记录的锌和铅以及其他几种重金属（镉、钼、镍、铀、钒）的浓度明显高于康沃利斯岛上的湖泊。尽管北极星矿于2002年关闭，但在我们2017年的调查中，重金属水平的升高很可能是先前作业造成的污染。

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Limnological Characteristics Reveal Metal Pollution Legacy in Lakes near Canada’s Northernmost Mine, Little Cornwallis Island, Nunavut

We compared modern limnological characteristics of three lakes near the world’s northernmost base metal (lead-zinc) mine, Polaris Mine, which operated from 1981 to 2002 on Little Cornwallis Island (Nunavut, Canada), to a suite of sites from Resolute Bay (Qausuittuq), Cornwallis Island. Although both study regions are underlain by broadly similar geology and experience nearly identical climatic conditions, present-day water chemistry variables differed markedly between sites on the two islands. Specifically, the lakes near the Polaris Mine recorded substantially higher concentrations of zinc and lead, as well as several other heavy metals (cadmium, molybdenum, nickel, uranium, vanadium), relative to the sites on Cornwallis Island. Although the Polaris Mine closed in 2002, elevated levels of heavy metals in our 2017 survey are likely a legacy of contamination from prior operations.

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来源期刊

Arctic 地学-环境科学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Arctic is a peer-reviewed, primary research journal that publishes the results of scientific research from all areas of Arctic scholarship. Original scholarly papers in the physical, social, and biological sciences, humanities, engineering, and technology are included, as are book reviews, commentaries, letters to the editor, and profiles of significant people, places, or events of northern interest