土壤砷污染风险调控技术及思路

Risk controlling technology and ideas of soil arsenic pollution

砷是一种广泛存在的具有致癌作用的强毒性污染物,土壤中存在的砷可通过食物链的方式影响人体健康。介绍了我国土壤砷累积现状,从土壤砷的原位钝化修复、砷低吸收作物应用、农艺调控和微生物技术应用等方面综述了各技术研究进展及相关机理,对土壤砷污染风险调控技术的发展趋势进行了展望。

Arsenic is an ubiquitous and carcinogenic metalloid element.Arsenic from soils can affect human health via food chain.In this review,arsenic accumulation condition was introduced.Subsequently,the research progress and related mechanisms in the in-situ remediation with passivator,field application of crops with low-uptake of arsenic,agronomic measures,and microbial technology were comprehensively reviewed.In the end,the future development in technologies controlling risk of arsenic contamination was prospected.This review will shed light on the future risk control and remediation of arsenic contaminated agricultural soils.