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Mercury Contamination in Sediments and Fish from an Urban Tropical Estuary: Ecological and Human Health Risks by Mariana Vezzone; Ricardo Cesar; Aline Serrano; Rodrigo Lourenço; Ana Paula Rodrigues; Zuleica Castilhos; Roberto Meigikos dos Anjos; Helena Polivanov is a Environmental Science article available to read on EtoBox.
What is Mercury Contamination in Sediments and Fish from an Urban Tropical Estuary: Ecological and Human Health Risks about?
This work examined mercury concentrations in Rodrigo de Freitas Lagoon (RFL; Rio de Janeiro, Brazil) to support ecological and human health risk assessments associated with the consumption of Hg-contaminated fish. Sediments and fish samples (Mugil liza and Geophagus brasiliensis) were collected for total Hg determination. Potential application of a model for estimating Hg in fish was also evaluated by comparing estimated Hg contents with those found in fish muscle samples. To assess human health risks for non-carcinogenic effects, the hazard quotient (HQ) was calculated for fishermen and market consumers. Hg contents in human hair and blood were estimated by using a single-compartment model proposed by WHO, based on the frequency of fish ingestion and mercury concentration in fish. No sediment sample (0.122 ± 0.079 mg/kg; n = 17) exceeded the safety Brazilian limit for aquatic biota (0.3 mg/kg). The northern section of RFL presented the highest Hg contents correlated with organic enrichment and mud. Mercury concentrations in M. liza (0.0065 ± 0.0050 mg/kg; n = 30) were lower than those found in G. brasiliensis (0.0580 ± 0.0745 mg/ kg; n = 31), probably due to the sampling of younge
Who reads Mercury Contamination in Sediments and Fish from an Urban Tropical Estuary: Ecological and Human Health Risks?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Mariana Vezzone; Ricardo Cesar; Aline Serrano; Rodrigo Lourenço; Ana Paula Rodrigues; Zuleica Castilhos; Roberto Meigikos dos Anjos; Helena Polivanov
- Publisher
- Springer Science and Business Media LLC
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)