摘要
全球气候变化是21世纪人类社会面临的巨大挑战,其中,气候变暖下的环境污染问题受到国际广泛关注.持久性有机污染物(persistent organic pollutants,POPs)是一类具有半挥发性、难降解性、高毒性和高生物累积性的高关注度化学物质,土壤是其主要储存库.气候变暖直接或间接影响土壤中POPs的迁移转化及毒性效应,可能放大POPs对区域乃至全球的生态与健康风险.本文综述了土壤中POPs二次挥发和降解过程的国内外研究进展,分别讨论了气候变化情景下土壤中POPs二次挥发、生物降解、光降解和毒性效应的动态变化趋势,并归纳分析了土壤中POPs环境行为及毒性效应研究中尚待解决的问题,以期为气候变化与POPs全球循环及其环境风险相关研究提供参考.
Global climate change is a huge challenge facing the world in the 21st century,and environmental pollution under climate warming has received extensive international attention.Persistent organic pollutants(POPs)are substances of very high concern which are usually semivolatile,highly resistant to degradation,highly toxic,and highly bioaccumulative.Soil is the main reservoir of POPs.Climate warming directly or indirectly affects the transportation,transformation,and toxic effects of POPs in soil,which may amplify the ecological and health risks of POPs to the regional and global environment.Here we review the research progress of re-volatilization and degradation of POPs in soil;discuss the dynamic trends of re-volatilization,biodegradation,photodegradation,and toxic effects of POPs in soil under climate change scenarios;and summarize some unresolved problems in the domain of environmental behavior and toxic effects of POPs in soil.This article could provide references for future studies on global cycling and environmental risks of POPs under climate change.
作者
丁洋
黄焕芳
张原
祁士华
DING Yang;HUANG Huanfang;ZHANG Yuan;QI Shihua(Key Laboratory of Land Resources Evaluation and Monitoring in Southwest,Ministry of Education,Sichuan Normal University,Chengdu,610066,China;Engineering Research Center for the Development of Farmland Ecosystem Service Functions,Sichuan Province,Chengdu,610066,China;South China Institute of Environmental Sciences,Ministry of Ecology and Environment,Guangzhou,510530,China;State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Wuhan,430078,China)
出处
《环境化学》
CAS
CSCD
北大核心
2023年第12期4338-4353,共16页
Environmental Chemistry
基金
国家自然科学基金(42207476,42007310,41473095)
四川师范大学2021年科研启动费(kyqd20210727)资助。
关键词
新污染物
土-气交换
降解产物
环境风险
全球变暖.
emerging contaminants
soil-air exchange
degradation products
environmental risks
global warming.
