Survey of heavy metals contamination of vegetables in Shaoxing from 2007 to 2014
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(Shaoxing Center for Disease Control and Prevention,Zhejiang Shaoxing 312071,China)

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    Abstract:

    To investigate lead, cadmium and total mercury contamination in vegetables in Shaoxing, provide basic evidence for formulating the control measures.Methods During 2007 to 2014,4 vegetable samples were collected from farmers′ markets and supermarkets in seven monitoring sites in Shaoxing, all the samples were analyzed for lead, cadmium and total mercury by national standard methods, and the results were evaluated by GB 2762-2012.The contamination of heavy metals in vegetables was evaluated by single factor contaminant index and Nemero comprehensive contaminant index. Results The detection rate of lead, cadmium and total mercury were 68.4%(673/984),92.0%(905/984)and 37.6%(370/984) respectively, the violation rates were 2.9% (29/984), 1.2% (12/984) and 5.8% (57/984) respectively, and the mean values were 0.040,0.017 and 0.0040 mg/kg respectively. The violation rates of total mercury from 2009 to 2011 were higher than other years,which were 17.3%(19/110), 24.7% (19/77) and 10.1% (12/119)respectively. The violation rates of lead and cadmium in bulbous vegetables were 14.0% (6/43)and 11.6% (5/43) respectively, which were the highest in all kinds of vegetables. The comprehensive contaminant index of all kinds of vegetables was less than 0.7. Conclusion The overall contamination of heavy metals in vegetables was not high in Shaoxing, but should be concerned in some kinds of vegetables, and control measures should be strengthened.

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XU Lai-chao, FAN Wei, CHEN Li, WANG Jing. Survey of heavy metals contamination of vegetables in Shaoxing from 2007 to 2014[J].中国食品卫生杂志,2015,27(6):687-691.

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  • Received:November 02,2015
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  • Online: December 14,2015
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