Heavy metal concentrations in the West African clam, Egeria radiata (Lammark, 1804) from McIver market, Warri, Nigeria.
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Date
2012Creative Commons
Attribution-ShareAlike 4.0 International
Metadata
Показать полную информациюAbstract
Samples of Egeria radiata were purchased from local dealers in McIver mar et, Warri, Nigeria, to investigate the presence and concentrations of some heavy metals in order to ascertain the suitability of the clam for human consumption. Analyses using Atomic Absorption Spectrophotometer (AAS) show that E. radiata accumulated some heavy metals with the following sequence of concentration: Iron> Nic el> Lead> Copper> Arsenic> Manganese> Chromium> Cadmium> Mercury. The variability of heavy metals concentration observed in E. radiata during the period of study was affected by rainfall amount. A negative relationship between changes in rainfall and body weight of clams show that the higher the rainfall the lower the mean dry weight. Individual heavy metal differed significantly (P< 0.05) in concentration. However, heavy metal concentrations did not vary significantly (P> 0.05) by months. Out of the nine heavy metals found in E. radiata tissues, lead and cadmium were higher than the WHO/FAO set limit. E. radiata sold in McIver mar et during this period of study were contaminated with lead and cadmium and therefore not fit for consumption.Journal
International Journal of Science and NatureVolume
3Issue/Article Nr
2Page Range
309-315Resource/Dataset Location
http://www.scienceandnature.org/IJSN/IJSN_Vol3(2)J2012/IJSN-VOL3(2)12-15.pdfCollections
The following license files are associated with this item:
- Creative Commons
Except where otherwise noted, this item's license is described as Attribution-ShareAlike 4.0 International