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沿海城市灰霾天气与海盐氯损耗机制的关系
引用本文:吴兑,吴晟,毛夏,李海燕.沿海城市灰霾天气与海盐氯损耗机制的关系[J].环境科学与技术,2011(Z1):38-43.
作者姓名:吴兑  吴晟  毛夏  李海燕
作者单位:中国气象局广州热带海洋气象研究所;香港科技大学环境学部;深圳市气象局;
基金项目:国家自然科学基金(40775011、U0733004); “973”课题(2011CB403403); “863”课题(2006AA06A306、2006AA06A308)
摘    要:随着经济规模迅速扩大和城市化进程加快,大气气溶胶污染日趋严重,由细粒子气溶胶造成的能见度恶化事件越来越多,这些人类活动排放的污染物,可形成灰霾天气致使能见度下降。尤其值得注意的是沿海城市灰霾天气增长较快,沿海城市灰霾天气增多与海盐气溶胶粒子的氯损耗机制关系密切。我国30年前在粉尘污染时代建立的空气质量评价体系,已经远远不能描述新型复合空气污染类型,尤其是不能描述细粒子污染的情况,能见度的恶化主要与细粒子的浓度关系比较大,而与气溶胶的质量浓度关系不大。能见度与PM2.5尤其是PM1有非常好的关系,因而目前用能见度来描述灰霾天气是最好的指标。

关 键 词:沿海城市  灰霾天气  海盐巨粒子  细粒子污染  氯损耗机制

The Relationships between Haze Weather in Coastal Cities and Chlorine Loss of Sea Salt Aerosol
Wu Dui,Wu Cheng,Mao Xia,LI Hai-yan.The Relationships between Haze Weather in Coastal Cities and Chlorine Loss of Sea Salt Aerosol[J].Environmental Science and Technology,2011(Z1):38-43.
Authors:Wu Dui  Wu Cheng  Mao Xia  LI Hai-yan
Institution:Wu Dui1,Wu Cheng2,Mao Xia3,LI Hai-yan1(1.Institute of Tropical and Marine Meteorology,CMA,Guangzhou 510080,China,2.Division of the Environment,The Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong,3.Shenzhen Meteorology Bureau,Shenzhen 518040,China)
Abstract:With the rapid expansion of economy and urbanization,atmospheric particulate matter(PM) pollution becomes more and more serious.Low visibility episodes happen more frequently due to the increasing concentration of fine PM from anthropogenic emission.It has been found that the rapid growth of haze weather in coastal cities are more notable,which is related to the chlorine loss of sea salt aerosol according to our study.The assessment system for air quality in China,which was designed for dust pollution 28 ye...
Keywords:Coastal cities  haze weather  giant sea salt particles  fine particle pollution  Chlorine loss  
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