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| Concentration and risk assessment of heavy metals in aquatic products collected from Taiwan shallow fishery |
| Received:May 09, 2016 |
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| KeyWord:aquatic product, heavy metal, risk assessment |
| Author Name | Affiliation | E-mail | | DU Bing | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China
State Key Laboratory of Marine Environmental Science(Xiamen University), Xiamen 361005, China | | | SUN Lu-min | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China
State Key Laboratory of Marine Environmental Science(Xiamen University), Xiamen 361005, China | sunlumin@vip.qq.com | | HAO Wen-bo | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China | | | LIANG Xiao-ping | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China | | | LUO Xia | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China | | | XUE Cheng | Key Laboratory of Estuarine Ecological Security and Environmental Health(Xiamen University Tan Kah Kee College), Fujian Province University, Zhangzhou 363105, China | |
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| Abstract: |
| A total of 165 samples including 59 species of typical aquatic products collected from the Taiwan shallow fishery was analyzedwith atomic fluorescence spectrometer(AFS) for Hg and inductively coupled plasma-mass spectrometer(ICP-MS) for Cr, Cu, Zn, Cd and Pb. Pollution level, consumer safety and health risk of the aquatic products were evaluated with single factor pollution index(Pi), heavy metal pollution index(MPI), provisional tolerable weekly intake(PTWI) and food health risk index(Ri total). The results indicated that except for Cd, the heavy metal concentrations were lowered than the prescript values set by the national standard for aquatic products(GB 18406.4-2001). Pi results showed that about 17.9%, 1.8% and 3.7% samples were slightly polluted with Cr, Cu and Zn, respectively; more than 0.6% and 1.9% samples reached or exceeded the values of "moderate pollution" set for Hg and Pb, and more than 5.6% samples were at the level of "heavy pollution" for Cd. MPI results indicated that relatively high XMPI values were observed on benthic and related fishes. Overall, the XMPI values of the aquatic products were at a low level. Analysis with PTWI showed that Hg, Cu, Zn and Pb were at low or none risk level. However, concentrations of Cd in 3.6% samples and Cr in 30.3% samples had exceeded the recommended threshold values. Assessment with health risk model suggested that the pollutant concentrations did not exceed the recommended maximum acceptable levels set by International Commission on Radiological Protection(ICRP). Although no obvious pollution safety problems were found in the aquatic products of Taiwan shallow fishery, potential risks of Cr and Cd still call for continual monitoring and further attention. |
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