CAJ | 학술논문

通过采样分析探究了雅安市耕地土壤重金属的分布,并利用国家土壤环境质量一级标准和健康风险评价模型对雅安市耕地土壤中Pb、Zn、Cu、Cd的含量进行健康风险评价.结果表明,雅安耕地土壤Pb、Zn、Cu、Cd的含量范围分别为:38.25～127 mg·kg~(-1)Pb、32.91～156.4 mg·kg~(-1)Zn、7.479～82.73 mg·kg~(-1)Cu、1.667～7.949 mg·kg~(-1)Cd,其中Cd超标最为严重,Pb和Zn次之,Cu最小.土壤中重金属Pb、Zn、Cu、Cd的含量所引起的成人与儿童平均个人风险均表现为Cd>Pb>Cu>Zn,其中宝兴县五龙乡东风村人体总的健康危害风险最大,在实际生产生活中应加强相应预防和控制.
통과채양분석탐구료아안시경지토양중금속적분포,병이용국가토양배경질량일급표준화건강풍험평개모형대아안시경지토양중Pb、Zn、Cu、Cd적함량진행건강풍험평개.결과표명,아안경지토양Pb、Zn、Cu、Cd적함량범위분별위:38.25～127 mg·kg~(-1)Pb、32.91～156.4 mg·kg~(-1)Zn、7.479～82.73 mg·kg~(-1)Cu、1.667～7.949 mg·kg~(-1)Cd,기중Cd초표최위엄중,Pb화Zn차지,Cu최소.토양중중금속Pb、Zn、Cu、Cd적함량소인기적성인여인동평균개인풍험균표현위Cd>Pb>Cu>Zn,기중보흥현오룡향동풍촌인체총적건강위해풍험최대,재실제생산생활중응가강상응예방화공제.
This thesis explored the distribution of heavy metals(Pb, Zn, Cu, Cd)in cultivated land of Ya′an. Contents of heavy metals (Pb, Zn, Cu, Cd) in cultivated land in Ya′an, were investigated to evaluate environmental quality based on the national soil environmental quality standards and health risk assessment model for safety of soils human. The results showed that Pb, Zn, Cu, Cd contents of cultivated soils in the range of: Pb 38.25～127 mg·kg~(-1), Zn 32.91～156.4 mg·kg~(-1), Cu 7.479～82.73 mg·kg~(-1), Cd 1.667～7.949 mg·kg~(-1), which exceeded the most serious Cd, followed by Pb, Zn, and the minimum is Cu.The average order of individual risk index for children and adult health was Cd>Pb>Cu>Zn. For human general hazard indexes, the Dongfeng village of wulong town in Baoxing was the highest. It may produce a threat to human health. Besides, Contents of heavy metals Cd in cultivated land soil in Ya′an was the beyond standard equally; Pb, Zn, Cu of parts of cultivated land in Ya′an existed potential risk. And we should strengthen prevention and control of the corresponding in the actually production and living life.