摘要
污染场地土壤修复是一项复杂工程,为检验土壤修复效果,依据《污染场地修复验收技术规范》,对福州XX化工厂进行场地修复效果评价.土壤样品检测结果表明,原来超标的Pb、Hg的含量均明显低于修复目标值,坑底采样的4个样品中,Cd和As的含量也低于修复目标值,场地修复效果显著.但是,侧壁采样的15个样品中,Cd和As的含量仍存在超标现象.采用人体健康.风险评价方法对两种目标污染物进行健康风险评价,结果显示,Cd和As的非致癌风险指数对儿童和成人都大于1,As的致癌风险指数对儿童和成人都大于1×10-6.场地还存在潜在健康风险,在投入使用前需要进行进一步修复.
It is a complex project to remediate the contaminated sites. In order to test soil remediation effect, the article evaluated a chemical factory contaminated by heavy metals in Fuzhou according to the technical specification for the accep- tance of contaminated site remediation. Test results of repaired soil samples showed that the site remediation effect is re- markable. The concentrations of Pb and Hg were significantly lower than repair target, the concentrations of Cd and As in the four bottom samples were less than repair target, too. However, there is still an ovenproof phenomenon of Cd and As in 15 sidewall samples. The human health risk assessment method was applied to assess the health risks of the two pollutants. The results showed that the carcinogenic risk indexs of both Cd and As are greater than 1 to children and adults, the cancer risk indexs of As for both children and adults are greater than l×10-6. There are potential health risks. It is needed further restoration before putted into use.
出处
《海南师范大学学报（自然科学版）》
CAS
2015年第2期190-193,共4页
Journal of Hainan Normal University（Natural Science）
基金
国家自然科学基金项目(41171119)
关键词
重金属
污染场地
修复效果
健康风险
heavy metals
contaminated site
remediation effect
health risk
