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Heavy metals in sea cucumber juveniles from coastal areas of Bohai and Yellow seas, north China
- Source :
- Bulletin of environmental contamination and toxicology. 94(5)
- Publication Year :
- 2014
-
Abstract
- The study was undertaken to assess the contents of heavy metals (Cu, Zn, Cr, Pb, Cd, As and Hg) in sea cucumber (Apostichopus japonicus) juveniles from coastal areas of Bohai and Yellow seas in northern China. Sea cucumber juveniles were collected from twenty commercial hatcheries distributed in five coastal cities. The mean concentrations obtained for heavy metals in mg/kg were as follows: Cu (0.179), Zn (2.634), Cr (0.108), Pb (0.065), Cd (0.161), As (0.372), Hg (0.034). All the mean concentrations were below the maximum residual limits set by Chinese legislation, but As in 10 % samples exceeded the safety threshold. Significant differences in contents of Cr, Pb and Hg were found among the five investigated areas. Overall, the heavy metal levels in sea cucumber juveniles were relatively low and more attention should be paid to toxic metals Pb, Cd, As and Hg in future routine monitoring program.
- Subjects :
- China
biology
Health, Toxicology and Mutagenesis
Oceans and Seas
Sea Cucumbers
North china
Heavy metals
General Medicine
Toxicology
biology.organism_classification
Pollution
Monitoring program
Fishery
Sea cucumber
Environmental chemistry
Metals, Heavy
Apostichopus japonicus
Ecotoxicology
Environmental science
Animals
Cities
Water Pollutants, Chemical
Environmental Monitoring
Subjects
Details
- ISSN :
- 14320800
- Volume :
- 94
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Bulletin of environmental contamination and toxicology
- Accession number :
- edsair.doi.dedup.....4dd02c0b70a78aff6d491327bec179bc