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| Heavy Metal Concentrations in Muscle of Fishes from the Northeast China |
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| KeyWord:fish; heavy metals; evaluation; inductively coupled plasma-mass spectrometry |
| Author Name | Affiliation | | QIN Dong-li | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | TANG Shi-zhan | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | BAI Shu-yan | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | ZHENG Min | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | WANG Hai-tao | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | CHEN Zhong-xiang | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | WU Song | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China | | MOU Zhen-bo | Heilongjiang Fishery Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China |
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| Abstract: |
| Common carp（Cyprinus carpio）, crucian carp（Carassius carpio）and grass carp（Ctenopharyngodon idellus） were collected from 45 fisheries distributed in the nine cities of the Northeast China. Concentrations of heavy metals in muscle of 177 fish samples were determined by inductively coupled plasma-mass spectrometry. As, Hg, Pb, Cd, Cr, Cu and Zn concentrations ranged from nd~0.534, nd~0.175, nd~1.76, nd~0.130, nd~0.521, nd~2.00, and 1.68~27.2 mg·kg-1（wet weight）, respectively. Their mean concentrations were below the National Standards of Aquatic Product Safety. However, As, Cd and Pb exceeded the Standards in some fish samples, with 0.6%, 1.1% and 9.0% of the fish samples, respectively. The indexes of heavy metal pollution were 0.113~0.163. No evidence of obvious metal pollution in fishes was found in the studied area, with an exception of Pb, whose pollution was detected in some regions or fisheries. Fish Zn, As, and Hg concentrations differed significantly among three species（P<0.01）, with higher concentrations in crucian carp than in other two. The concentrations of Cr in fish muscle varied significantly in different provinces（P<0.01）, with lowest value found in Jilin. Our results provide the current status of heavy metals in three main economic fish species. |
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