RETRACTED: Assessing Mercury Contamination Levels in the Sediments of Two Pyrenean Lakes
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No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.
Post-publication record
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Abstract
Mercury, a trace metal, is a persistent environmental pollutant that can be detected even in remote regions, including high-mountain lakes. This study examined mercury concentrations in the sediment of two lakes in the French Pyrenees, the Legunabens and Labant lakes. Sediment samples were collected using a Hon-Kajak Sediment Corer, and mercury concentrations were measured following the EPA 7473 method with a direct mercury analyzer (DMA-80). Mercury levels reached up to 283 ng g−1 in the Legunabens lake and up to 110 ng g−1 in the Labant lake, possibly linked to the mining history of the Ariège department and atmospheric deposition from distant sources. These findings indicate significant contamination, ranging from an 8% to 42% probability of generating adverse biological effects according to Canadian standards, and approximately 90% higher concentrations compared to average mercury concentrations in other Pyrenean lakes. Such contamination poses potential risks to aquatic life and the environment due to mercury’s toxicity and bioaccumulation in microorganisms.
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The record
- Venue
- Diversity
- Topic
- Mercury impact and mitigation studies
- Field
- Environmental Science
- Canadian institutions
- —
- Funders
- —
- Keywords
- Mercury contaminationMercury (programming language)ContaminationEnvironmental scienceEnvironmental chemistryBiologyEcologyGeographyChemistry
- Has abstract in OpenAlex
- yes