Study on heavy metal levels and its health risk assessment in some edible fishes from Nansi Lake, China
- 590 Downloads
Eight heavy metals, namely Cu, Zn, Fe, Mn, Cd, Ni, Pb, and As in the muscles of nine fish species collected from Nansi Lake, China. were determined, and the potential health risks to local residents via consumption of the fishes were estimated. The results of two-way ANOVA that showed the concentrations of heavy metals in the investigated fish samples were influenced significantly by fish species and sampling sites. Correlation analysis indicated that sampling sites had significant effects on the levels of correlation coefficients among different heavy metal concentrations. Interestingly, although none of the hazard quotient (HQ) values of any individual element was greater than 1 for the investigated exposure population through fish consumption, the hazard index (HI) values were more than 1 for local fishermen, suggesting that local fishermen may be experiencing some adverse health effects. Among the investigated nine fish species, Cyprinus carpio had the highest HQ and HI. As, Pb, and Cd were the most concerning heavy metals in the investigated fish samples due to their higher relative contributions to the HI values.
KeywordsFish Heavy metals Health risk Nansi Lake
The authors would like to thank the key science and technology project of Henan for its financial support .
- Australia New Zealand Food Authority. (1998). Food standards code. Standard A12, Issue 37.Google Scholar
- Bidar, G., Pruvot, C., Garçon, G., Verdin, A., Shirali, P., & Douay, F. (2009). Seasonal and annual variations of metal uptake, bioaccumulation, and toxicity in Trifolium repens and Lolium perenne growing in a heavy metal-contaminated field. Environmental Science and Pollution Research, 16, 42–53.CrossRefGoogle Scholar
- FAO. (1983). Compilation of legal limits for hazardous substances in fish and fishery products. FAO Fishery Circular No. 464, 5–10. Rome: Food and Agriculture Organization of the United Nations.Google Scholar
- Hang, X. S., Wang, H. Y., Zhou, J. M., Ma, C. L., Du, C. W., & Chen, X. Q. (2009). Risk assessment of potentially toxic element pollution in soils and rice (Oryza sativa) in a typical area of the Yangtze River Delta. Environmental Pollution, 157, 2542–2549.Google Scholar
- JECFA. (2003). Summary and conclusions of the 61st meeting of the Joint FAO/WHO Expert Committee on Food Additives. JECFA/61/SC. Rome, Italy.Google Scholar
- MAFF. (1995). Monitoring and surveillance of non-radioactive contaminants in the aquatic environment and activities regulating the disposal of wastes at sea, 1993. Aquatic Environment Monitoring Report No. 44. Direcorate of Fisheries Research, Lowestoft.Google Scholar
- Mohamed, M., Khidr, A. A., & Dheina, N. (2011). Assessment of heavy metal concentrations in water, plankton, and fish of Lake Manzala, Egypt. Turkish Journal of Zoology, 35, 271–280.Google Scholar
- Nakayama, S. M. M., Ikenaka, Y., Muzandu, K., & Choongo, K. (2010). Heavy metal accumulation in lake sediments, fish (Oreochromis niloticus and Serranochromis thumbergi), and crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia. Archives of Environmental Contamination and Toxicology, 59, 291–300.CrossRefGoogle Scholar
- National Academy of Sciences. (1980). Recommended dietary allowances (9th ed.). Washington: National Academic Press.Google Scholar
- Petkovšek, S. A. S., Grudnik, Z. M., & Pokorny, B. (2012). Heavy metals and arsenic concentrations in ten fish species from the Šalek lakes (Slovenia): assessment of potential human health risk due to fish consumption. Environmental Monitoring and Assessment, 184(5), 2647–2662.CrossRefGoogle Scholar
- Plaskett, D., & Potter, I. C. (1979). Heavy metal concentrations in the muscle tissue of 12 species of teleost from Cockburn Sound, Western Australia. Australian Journal of Marine & Fresh Water Research, 30, 607–616.Google Scholar
- US EPA. (1989). Risk assessment guidance for superfund. Human health evaluation manual (part A). Interim final, vol. I. Washington (DC): United States Environmental Protection Agency.Google Scholar
- US EPA. (1992). Guidelines for exposure assessment, environmental protection agency, risk assessment forum. Washington DC.Google Scholar
- US EPA. (1999). Guidance for performing aggregate exposure and risk assessments, environmental protection agency, office of pesticide programs. Washington DC.Google Scholar
- US EPA. (2007). EPA region 3 RBC table. http://www.epa.gov/reg3hwmd/risk/human/rbc/RBCapr07.pdf. Accessed Aug 2008.
- WHO. (1994). Quality directive of potable water, 2nd ed. (p. 197). WHO.Google Scholar
- WHO. (1996). Health criteria other supporting information. In: Guidelines for Drinking Water Quality, vol. 2, 2nd ed. (pp. 31–388). Geneva.Google Scholar