湘潭某工业园周边稻田土壤及稻米镉污染的风险评价
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农业部项目(200903015);国家自然科学基金项目(面上项目,重点项目,重大项目)


Risk assessment of Cd in paddy soil and rice sample collected from an industrial park of Xiangtan
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    摘要:

    采用单因子指数法和潜在生态危害指数法评价了湖南湘潭市某工业园区周边稻田土壤的污染现状及其潜在风险,并对成年人食用当地稻米的健康风险进行了评价。结果表明,该工业园区周边稻田土壤镉(Cd)含量的变幅为1.27~4.22 mg/kg,属重度镉污染;土壤潜在生态危害系数(Ei)均大于320,受到极强生态危害;园区边生产的稻米Cd污染风险商值(HQ)为1.61~7.44,对人体健康产生影响的可能性很大,明显存在Cd的潜在健康危害。

    Abstract:

    Used the single factor index method and the potential ecological risk index were used to valuate Cd pollution and its potential risk in paddy soils around an industrial park in Xiangtan. The human health for a local adult also was analyzed. The results showed that the ranges of concentrations of Cd in soils were 1.27–4.22 mg/kg, indicating those paddy soils were suffered heavy Cd contamination. The potential ecological risk factors(Ei)for Cd in the soils were more than 320, demonstrating soil Cd contamination around industrial area. The hazard quotient of Cd in rice growth in those contaminated paddy soils ranged from 1.61–7.44, indicating that the potential health risk of Cd pollution was obvious. The local adult who consumed the contaminated rice was suffered from Cd pollution.

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唐贞,杨仁斌.湘潭某工业园周边稻田土壤及稻米镉污染的风险评价[J].湖南农业大学学报:自然科学版,2012,38(1):92-95.

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  • 收稿日期:2011-06-17
  • 最后修改日期:2011-10-08
  • 录用日期:2011-12-26
  • 在线发布日期: 2012-02-02
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