ArticleEnvironmental monitoring and assessment2026
Temporal variability of emerging contaminants and estrogenic activity in sediments of a tropical coastal lagoon.
Article in Environmental monitoring and assessment, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The increasing occurrence of emerging contaminants in aquatic environments has raised concerns about their persistence and ecological impacts, particularly in coastal lagoons subjected to anthropogenic pressure. Here, we investigated the occurrence of pharmaceuticals, alkylphenols, bisphenol A (BPA), and steroid estrogens, together with their estrogenic activity, in surface sediments from Maricá Lagoon (Rio de Janeiro, Brazil), testing the hypothesis that contaminant occurrence and biological responses vary between sampling years despite persistent anthropogenic inputs. Surface sediments were collected from seven fixed sites during dry-season campaigns in 2021 and 2023. Grain size distribution was determined by sediment texture analysis, organic contaminants were identified and quantified using gas chromatography-mass spectrometry (GC-MS), and estrogenic activity was assessed using the yeast estrogen screen (YES) bioassay. Chemical analyses detected alkylphenols (4-octylphenol and 4-nonylphenol), BPA, steroid estrogens, and pharmaceutical-related compounds. BPA was the most frequently detected contaminant (0.10-0.465 ng g⁻
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