高虹镇稻米中重金属污染状况及健康风险评价

发布时间：2018-11-18 12:12

【摘要】：为调查浙江省高虹镇稻米重金属污染状况及其对人体健康的影响,从高虹镇采集了51个本地稻米样品和37个市售外地稻米样品进行分析。采用污染指数法、相关性分析及聚类分析法评价了高虹镇本地和市售稻米中的重金属污染状况和分布特征。依据对当地居民进行的问卷调查结果,采用危险商法和高危指数法评价了稻米中的重金属对当地居民可能造成的风险。结果表明:高虹镇稻米铬、砷和铅的污染比较严重,分别为0.03~13.45mg·kg-1,0.01~1.64 mg·kg-1和0.04~7.84 mg·kg-1,超标比率分别为70.59%,31.37%和27.45%。本地稻米和市售稻米的综合污染指数分别为3.01和1.95,整体上分别处于重度污染和轻度污染的水平。本地稻米和市售稻米的高危指数值分别为3.50和2.18,食用高虹镇本地产稻米对人体潜在的健康风险更大。
[Abstract]:In order to investigate the heavy metal pollution of rice in Gaohong town Zhejiang Province and its effects on human health 51 local rice samples and 37 local rice samples were collected and analyzed. Pollution index method, correlation analysis and cluster analysis were used to evaluate the heavy metal pollution and distribution characteristics of local and market rice in Gaohong town. Based on the survey results of local residents, the risk of heavy metals in rice to local residents was evaluated by means of risk commercial method and high risk index method. The results showed that the pollution of Cr, as and Pb in Gaohongzhen rice was more serious, with 0.03~13.45mg kg-1,0.01~1.64 mg kg-1 and 0.04 ~ 7.84 mg kg-1, exceeding standard ratio being 70.59, respectively. 31.37% and 27.45%. The comprehensive pollution index of local rice and marketed rice were 3.01 and 1.95 respectively, which were in the level of severe pollution and slight pollution respectively. The high risk index values of local rice and marketed rice were 3.50 and 2.18 respectively.
【作者单位】：浙江农林大学环境与资源学院;浙江农林大学浙江省土壤污染生物修复重点实验室;
【基金】：浙江省重点科技创新团队资助项目(2013TD12) 国家国际科技合作专项(2014DFE90040) 国家自然科学基金资助项目(21577130,21677131)
【分类号】：X56;X820.4

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