Health risks for human intake of aquacultural fish: arsenic bioaccumulation and contamination

Kar, Sandeep and Maity, Jyoti Prakash and Jean, Jiin-Shuh and Liu, Chia-Chuan and Liu, Chen-Wuing and Bundschuh, Jochen and Lu, Hsueh-Yu (2011) Health risks for human intake of aquacultural fish: arsenic bioaccumulation and contamination. Journal of Environmental Science and Health, Part A Toxic Hazardous Substances and Environmental Engineering, 46 (11). pp. 1266-1273. ISSN 1093-4529

Abstract

Aquacultural tilapia (Oreochromis mossambicus L.) and shrimp (Penaeus monodon L.) from groundwater-cultured ponds in southwestern Taiwan were analyzed to estimate arsenic (As) bioaccumulation and the potential health risk to human intake. Most of aquacultural ponds exhibited higher arsenic than maximum allowed concentrations (50 μg L -1) in pond water of Taiwan. Arsenic levels in tilapia in Budai, Yichu and Beimen were 0.92±0.52 μg g -1, 0.93±0.19 μg g -1 and 0.76±0.03 μg g -1, respectively and in shrimp was 0.36±0.01 μg g -1 in Beimen. Total arsenic in tilapia is highly correlated (R 2 = 0.80) with total arsenic concentration of pond water. Total arsenic in fish showed high correlation with that in bone (R 2 = 0.98), head (R 2 = 0.97) and tissue (R 2 = 0.96). Organic arsenic species (DMA) was found higher relative to inorganic species of As(III) and As(V). The average percent contribution of inorganic arsenic to total arsenic in fish samples was 12.5% and ranged between 11.7 to 14.2%. Bioaccumulation factors (BAFs) for total arsenic in fish ranged from 10.3 to 22.1, whereas BAF for inorganic arsenic ranged from 1.33 to 2.82. The mean human health cancer risk associated with the ingestion of inorganic arsenic in the fish was estimated at 2.36×10 -4±0.99×10 -4, which is over 200 times greater than a de Minimus cancer risk of 1×10 -6. The mean human health hazard quotient associated with ingesting inorganic arsenic in the fish was 1.22±0.52, indicating that expected human exposure exceeds the reference dose for non-cancer health effects by 22%. These results suggest that the inhabitants in this region are being subjected to moderately elevated arsenic exposure through the consumption of tilapia and shrimp raised in aquaculture ponds.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published Version restricted in accordance with publisher copyright policy.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 24 Aug 2014 01:30
Last Modified: 06 Jun 2017 02:41
Uncontrolled Keywords: arsenic, aquaculture, fish, public health, Taiwan
Fields of Research : 05 Environmental Sciences > 0502 Environmental Science and Management > 050204 Environmental Impact Assessment
11 Medical and Health Sciences > 1117 Public Health and Health Services > 111705 Environmental and Occupational Health and Safety
07 Agricultural and Veterinary Sciences > 0704 Fisheries Sciences > 070404 Fish Pests and Diseases
07 Agricultural and Veterinary Sciences > 0704 Fisheries Sciences > 070401 Aquaculture
05 Environmental Sciences > 0502 Environmental Science and Management > 050205 Environmental Management
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Socio-Economic Objective: D Environment > 96 Environment > 9609 Land and Water Management > 960908 Mining Land and Water Management
C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920406 Food Safety
D Environment > 96 Environment > 9611 Physical and Chemical Conditions of Water > 961103 Physical and Chemical Conditions of Water in Fresh, Ground and Surface Water Environments (excl. Urban and Industrial Use)
Identification Number or DOI: 10.1080/10934529.2011.598814
URI: http://eprints.usq.edu.au/id/eprint/25820

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