浙江省毛竹鞭笋重金属含量及其安全质量评价

Contents and quality safety assessment of heavy metals in rhizome shoots of Phyllostachys pubescens Mazel ex H. de Lehaie in Zhejiang Province

对浙江省毛竹笋主产区的鞭笋样品进行了重金属含量分析,分析结果表明:鞭笋的3种重金属(铅、镉、砷)的检出率为100%,3种元素相对含量高低顺序为铅>镉>砷,但均未超过限量值的50%。从2010～2012年时间上分析,鞭笋中铅与镉的含量都有明显上升的趋势,综合污染指数也上升了40.35%;从鞭笋的不同产地分析,温州地区的鞭笋最为安全,衢州的综合污染指数最高,但综合污染指数均小于0.7,说明浙江省鞭笋受重金属污染的程度较小,质量是相对安全的。

The heavy metals contents of Pb, Cd and As in rhizome shoots of Phyllostachys pubescens were analyzed. The results show that there were 3 kinds of heavy metals （Pb, Cd andAs）, the detectable rates all were 100%, the content sequence was Pb 〉 Cd 〉 As, but did not exceed 50% of the limited value. From 2010 to 2012, the contents of Pb and Cd in rhizome shoots showed an obviously raising trend, the comprehensive pollution index also rose by 40.35%; by analysis from different producing areas, the safety of rhizome shoots from Wenzhou region was the safest, the comprehensive pollution index of rhizome shoots from Quzhou was the highest, the comprehensive pollution indexes of rhizome shoots from every areas were less than 0.7. It is found that the pollution level of heavy metal pollution in rhizome shoots of Zhejiang province was small, the rhizome shoots quality are relatively safe.