中国稻米

中国稻米 ›› 2016, Vol. 22 ›› Issue (4): 65-68.DOI: 10.3969/j.issn.1006-8082.2016.04.017

• 专论与研究 • 上一篇    下一篇

宁波市晚稻稻米中重金属污染分析及风险评估

  1. 1 宁波市种植业管理总站，浙江 宁波 315010；2 宁波市植物检疫站，浙江 宁波 315010
  • 出版日期:2016-07-20 发布日期:2016-07-20
  • 基金资助:

    宁波市农科教结合项目（2012NK41）

Analysis and Risk Assessment on Heavy Metal Contamination in Late Rice of Ningbo City

  • Online:2016-07-20 Published:2016-07-20

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摘要：

2014年，在宁波全市范围采集了168个晚稻样品，检测了稻米中无机砷、汞、铬、铅、铜、镉等6个指标。通过综合污染指数、单项污染指数、膳食健康风险评估等评价方法，对宁波市晚稻稻米重金属污染情况进行了分析评价。结果显示，宁波市晚稻稻米重金属污染总体安全情况良好，均处于安全水平，象山、余姚两地总体污染水平相比其他地区略高；镉单项污染指数偏高，在部分区县存在一定安全隐患；膳食健康安全水平总体良好，但部分样品的镉、铬存在着一定的膳食健康风险隐患。

关键词: 稻米, 重金属污染, 风险评估

Abstract:

168 late rice samples, planted in the Ningbo City in 2014, were collected to determine six indicators including inorganic arsenic, mercury, chromium, lead, copper and cadmium contents. The evaluation on heavy metal contamination was conducted according to integrated contamination index, single contamination index and dietary health risk assessment. The results showed that the rice heavy metal contamination in Ningbo City is generally in a good condition, being at a security level, slightly higher overall contamination level in Xiangshan City and Yuyao City compared with other regions. The single element contamination is at a security level, but the Cd contamination is high, constituting a hidden safety crisis in some counties. Dietary health and safety is generally in a good condition, but Cd and Cr contamination in some samples can be a hazard for dietary health.

Key words: rice, heavy metal contamination, risk assessment

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