Biological effects of gold mine tailings on the intertidal marine environment in Nova Scotia, Canada

被引：8

作者：

Doe, K. ^{[1
]}

Mroz, R. ^{[2
]}

Tay, K. -L ^{[2
]}

Burley, J. ^{[2
]}

Teh, S. ^{[3
]}

Chen, S. ^{[4
]}

机构：

[1] Environm & Climate Change Canada, Mt Uniacke, NS, Canada

[2] Environm & Climate Change Canada, 45 Alderney Dr, Dartmouth, NS B2Y 2N6, Canada

[3] Univ Calif Davis, Anat Physiol & Cell Biol, One Shields Ave,1321 Haring Hall, Davis, CA 95616 USA

[4] Canadian Food Inspect Agcy, Dartmouth Lab, 1992 Agcy Dr,POB 1060, Dartmouth, NS B2Y 3Z7, Canada

来源：

MARINE POLLUTION BULLETIN | 2017年 / 114卷 / 01期

关键词：

Biological effects; Gold mine tailings; Arsenic; Mercury; Molluscs; Bioaccumulation; MUSSELS MYTILUS-EDULIS; ARSENIC SPECIATION; HEAVY-METALS; BIVALVES; BIOACCUMULATION; ACCUMULATION; POLLUTION; CONTAMINATION; SEDIMENTS; BAY;

D O I：

10.1016/j.marpolbul.2016.08.056

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

From 1861 to the 1940s, gold was produced from 64 mining districts in Nova Scotia, where mercury amalgamation was the dominant method for the extraction of gold from ore until the 1880s. As a result, wastes (tailings) from the milling process were contaminated by mercury and were high in naturally occurring arsenic. In 2004 and 2005, sediments, water and mollusc tissues were collected from 29 sampling, stations at nine former gold mining areas along the Atlantic coastline and were analysed for arsenic and mercury. The resulting data were compared with environmental quality guidelines. Samples indicated high potential risk of adverse effects in the intertidal environments of Seal Harbour, Wine Harbour and Harrigan Cove. Arsenic in Seal Harbour was bio-available, resulting in high concentrations of arsenic in soft-shell clam tissues. Mercury concentrations in tissues were below guidelines. This paper presents results of the sampling programs and implications of these findings. Crown Copyright (C) 2016 Published by Elsevier Ltd. All rights reserved.

引用

页码：64 / 76

页数：13

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