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Cadmium, copper, lead and zinc contents of the mangrove oyster, Crassostrea corteziensis, of seven coastal lagoons of NW Mexico
- Source :
- Bulletin of environmental contamination and toxicology. 83(4)
- Publication Year :
- 2009
-
Abstract
- The ranges of concentrations of Cd, Cu, Pb and Zn of the soft tissues of C. corteziensis collected in seven coastal lagoons of NW Mexico were 1.55-7.45, 17.50-166.36, 4.13-9.49 and 245.34-2,304.12 microg/g (dry weight), respectively. Their distributions were not consistent and there were no seasonal trends, indicating different point sources of the metals in each lagoon. The mean Cd and Pb concentrations were 5.34 and 6.30 microg/g (dry weight), which are higher than the values indicative of polluted areas. Our data indicate that only the levels of Cd are a possible health risk in six of these lagoons, and only in the case of regular local consumers. In one, Cu and Zn reach levels of concern.
- Subjects :
- Health, Toxicology and Mutagenesis
chemistry.chemical_element
Food Contamination
Zinc
Toxicology
Risk Assessment
Dry weight
Aquaculture
Metals, Heavy
Ecotoxicology
Animals
Humans
Crassostrea
Water pollution
Mexico
Cadmium
biology
business.industry
Aquatic animal
General Medicine
Mangrove oyster
biology.organism_classification
Pollution
Fishery
chemistry
Environmental chemistry
Environmental science
business
Environmental Monitoring
Subjects
Details
- ISSN :
- 14320800
- Volume :
- 83
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Bulletin of environmental contamination and toxicology
- Accession number :
- edsair.doi.dedup.....50576c255eb26d8cb4cf0222edd19a42