...

首页> 外文期刊>Environmental Science & Technology: ES&T >Does Snowfall Introduce Disinfection By-product Precursors to Surface Water?

【24h】

Does Snowfall Introduce Disinfection By-product Precursors to Surface Water?

机译：Does Snowfall Introduce Disinfection By-product Precursors to Surface Water?

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Snow with large specific surface area and strong adsorption capacity can effectively adsorb atmospheric pollutants,which could/might lead to the increase of disinfection by-product(DBP)precursors in surface water.In this study,the contents and characteristics of dissolved organic matter(DOM)in meltwater were investigated,and DBP formation and the DBP-associated cytotoxicity index during chlorination of meltwater was first explored.Overall,meltwater exhibited high nitrogen contents.Meltwater-derived DOM was mainly composed of organics with low molecular weights,low aromaticity,and high unsaturated degrees.DBP formation potentials and cytotoxicity indexes in chlorinated meltwater were positively correlated with air quality index and were significantly impacted by snowfall stages.The trihalomethane and haloacetic acid yields from meltwater were relatively low,while yields of highly cytotoxic DBPs,especially halonitromethanes(6.3-10.8 μg-HNMs/mg-DOC),were significantly higher than those of surface water(1.7 μg-HNMs/mg-DOC).Notably,unsaturated nonaromatic organic nitrates in meltwater were important precursors of halonitromethanes.The actual monitoring results showed that snowfall significant increased the haloacetaldehydes and nitrogenous.DBP formation levels of surface water.Considering increased DBP formation and DBP-associated toxicity,it was demonstrated that DOM derived from snowfall in atmosphere-polluted areas could deteriorate surface water quality and pose potential risks to drinking water.

著录项

来源
《Environmental Science & Technology: ES&T》 |2022年第20期|14487-14497|共11页
作者
Zhenqi Du; Shuake Ding; Rong Xiao;
展开▼
作者单位

State Key Laboratory of Pollution Control and Resource Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;

State Key Laboratory of Pollution Control and Resource Reuse,College of Environmental Science and Engineering Tongji University,Shanghai 200092,China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
Disinfection by-products; emerging pollutants; wet deposition; atmospheric particulate matter; atmosphere pollution;

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

客服微信
服务号