Abstract：
: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.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Søndergaard J,Asmund G,Johansen P,Rigét Fdoi
10.1016/j.marenvres.2011.03.001subject
Has Abstractpub_date
2011-06-01 00:00:00pages
331-41issue
5eissn
0141-1136issn
1879-0291pii
S0141-1136(11)00042-0journal_volume
71pub_type
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