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- Title
Health risk assessment for consumption of fish originating from ponds near Dabaoshan mine, South China.
- Authors
Zhuang, Ping; Li, Zhi-an; McBride, Murray; Zou, Bi; Wang, Gang
- Abstract
Mining effluents are a potential source of toxic metals in the surrounding aquatic ecosystem and pose a potential health risk to humans from fish consumption. The objective of this paper is to assess the impact of the long-term Dabaoshan mining operation on heavy metal accumulation in different fish species. Heavy metal accumulation (lead (Pb), cadmium (Cd), zinc (Zn), and copper (Cu)) in four tissues (liver, muscle, intestine, and gills) of five carp species ( Hypophthalmichthys molitrix, Ctenopharyngodon idellus, Megalobrama amblycephala, Aristichthys nobilis, and Carassius auratus auratus) from two fishponds exposed to effluent waters from Dabaoshan mine, South China. The bioaccumulation factor (BAF) and target hazard quotients were calculated to assess potential health risks to local residents through fish consumption. Levels of heavy metals varied depending on the analyzed tissues. C. auratus auratus accumulated the higher Pb, Cd, Zn, and Cu in the intestine compared with other fish species. Liver of all five species contained high concentrations of Pb, Cd, Zn, and Cu. The BAF for the studied metals showed a descending order of Cd > Zn > Cu > Pb for fishpond 1 and Zn > Cd > Cu > Pb for fishpond 2. Risk assessments suggested that potential human health risk may be present due to high Pb and Cd concentration in the muscle of some fish species exceeding the national and international limits, although the target hazard quotients were less than one.
- Subjects
SOUTH Dakota; HEAVY metals; BIOACCUMULATION; FISHES; HEALTH risk assessment; MINES &; mineral resources
- Publication
Environmental Science & Pollution Research, 2013, Vol 20, Issue 8, p5844
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-013-1606-0