郭占景, 陈凤格, 曹丽玲, 赵伟. 河北省某国家级重金属污染重点防控区农田土壤铬污染评价[J]. 环境卫生学杂志, 2013, 3(3): 182-185.
    引用本文: 郭占景, 陈凤格, 曹丽玲, 赵伟. 河北省某国家级重金属污染重点防控区农田土壤铬污染评价[J]. 环境卫生学杂志, 2013, 3(3): 182-185.
    Guo Zhanjing, Chen Fengge, Cao Liling, Zhao Wei. The Assessment on Cr Pollution of Farmland Soil in the National Key Area for Heavy Metals Pollution Prevention and Control in Hebei Province[J]. Journal of Environmental Hygiene, 2013, 3(3): 182-185.
    Citation: Guo Zhanjing, Chen Fengge, Cao Liling, Zhao Wei. The Assessment on Cr Pollution of Farmland Soil in the National Key Area for Heavy Metals Pollution Prevention and Control in Hebei Province[J]. Journal of Environmental Hygiene, 2013, 3(3): 182-185.

    河北省某国家级重金属污染重点防控区农田土壤铬污染评价

    The Assessment on Cr Pollution of Farmland Soil in the National Key Area for Heavy Metals Pollution Prevention and Control in Hebei Province

    • 摘要:
      目的 了解重金属污染防控区农田土壤中铬污染程度, 为土壤污染防治提供科学依据。
      方法 按照《土壤环境监测技术规范》, 在污染区和对照区采集土壤56份, 测定铬含量, 采用《土壤环境质量标准》评价其对土壤的污染程度。
      结果 重金属污染区农田土壤中铬平均含量为58.81 mg/kg, 含量范围为42~91.25 mg/kg。没有样品超出《土壤环境质量标准》的二级标准值, 但有14.29%的样品超出研究区的背景值(68.3 mg/kg)。污染区与对照区农田土壤中铬含量有显著性差异(P<0.05)。两个区域铬潜在生态风险因子分别为0.56~1.22和0.54~0.65, 均处于轻微生态风险水平。
      结论 该县污染区农田土壤受到了铬污染, 属于轻度污染。

       

      Abstract:
      Objectives To investigate the level of Cr pollution of farmland soil in the area under heavy metals pollution prevention and control, and to provide scientific basis for the prevention and administration of soil pollution.
      Methods According to the Technical Specification for Soil Environmental Monitoring, 56 soil samples were detected for the content of Cr after collected from polluted area and controlled area. The degree of soil pollution was evaluated by using Environmental Quality Standard for Soils.
      Results The average of Cr content was 58.81 mg/kg with the range of 42~91.25 mg/kg in farmland soil from areas polluted by heavy metals. None of the samples exceed secondary standard value of Environmental Quality Standard for Soils, but 14.29% samples exceeded background level of the study area(68.3 mg/kg). There was significant difference for the content of Cr in farmland soil between polluted area and controlled area. The ranges of potential ecological risk factors for Cr in farmland soil were 0.56~1.22 and 1.54~0.56 respectively in polluted area and control area, which shows two areas were at a slightly low ecological risk level.
      Conclusions The farmland soil was polluted by Cr in polluted area of the county in a low pollution level.

       

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