【作者】 何要来； 王宁； 王宏；

【Author】 He Yaolai;Wang Ning;Wang Hong;School of Resources and Environmental Engineering,Anhui University;Anhui Lvchuang Environmental Technology Co.,Ltd;

【机构】 安徽大学资源与环境工程学院； 安徽绿创环境科技有限公司；

【摘要】 通过现场勘查、采样及室内分析,研究安徽亳州某小型电镀场地土壤环境中重金属分布特征及其环境风险。研究结果表明:该场地中Ni含量最高达《土壤环境质量建设用地土壤污染风险管控标准(试行)》第二类用地管控值11.65倍; Ni主要集中在表层土壤中,其生物有效性含量占总量的比值(B/T值)在表层土壤中最低,40 cm之后比值相近;地积累污染评价显示场地中Ni存在重度风险及严重风险,Hg存在偏中风险及重度风险;潜在生态风险评价结果表明研究区域中Ni生态风险水平为轻度—很强之间,Hg和As为轻度生态风险水平;健康风险评价结果表明土壤中Ni的非致癌因子危害商超过人体接受范围,存在严重健康风险。更多还原

【Abstract】 Through field investigation,sampling and indoor analysis,the distribution characteristics and environmental risks of heavy metals in the soil environment of a small electroplating site in Bozhou,Anhui Province were studied. The results show that the highest Ni content in the site is 11. 65 times of the control value of the second class land in the standard for soil pollution risk management and control of soil environmental quality construction land( Trial); Ni is mainly concentrated in the surface soil,and the ratio of its bioavailability to the total amount( B/T value) is the lowest in the surface soil,and the ratio is similar after 40 cm; the evaluation of land accumulation pollution shows that there is heavy Ni in the site The results of potential ecological risk assessment show that the ecological risk level of Ni in the study area is between mild and strong,and that of Hg and as is between mild and strong; the results of health risk assessment show that the hazard quotient of non carcinogenic factors of Ni in soil exceeds the acceptable range of human body,and there is serious health risk.更多还原