Distinction of two kinds of haze
Distinction of two kinds of haze
复制标题
两种雾霾的区别
DOI：
10.1016/j.atmosenv.2019.117228
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发表时间：
2020-02
影响因子：
5
通讯作者：
Liu Wenjun
中科院分区：
文献类型：
--
作者：
Wei Ke;Tang Xiaoyan;Tang Guiqian;Wang Junxia;Xu Luyang;Li Jing;Ni Chunhuan;Zhou Yanjun;Ding Yeyi;Liu Wenjun
雾霾是空气中悬浮的细颗粒物导致能见度下降的现象。在气象实践中，雾霾日是通过观测能见度和相对湿度，筛选雨、雪、尘、雾等特殊天气日后确定的。而在环境监测实践和相关研究中，也经常使用霾一词，通过颗粒物（PM）的读数来确定霾日。这实际上造成了两种不同的霾日，即气象霾日（mhd）和环境霾日（ehd），这两种霾日的定义和标准不同。我们的分析表明，尽管mhd和ehd重叠，但mhd在eds中的比例在北京为43%，上海为44%，广州为46%。同时，非EHDs的mhd比例也很大，北京约为21%，上海约为42%，广州约为67%。因此，在研究中国PM污染变化及其成因时，应明确区分两种雾霾定义，这对于解决中国的空气污染、制定环境政策以及应对雾霾对健康的影响具有重要的应用价值。
Haze is a phenomenon caused by the suspension of fine particulate matters in the air that leads to impaired visibility. In the meteorological practice, a haze day is determined using the observation of visibility and relative humidity, after screening the special weather days of rain, snow, dust, fog, and others. While in the environmental monitoring practice and relevant studies, the term haze is also commonly used and a haze day is determined using the reading of particulate matters (PM). This has actually caused two different kinds of haze days, i.e., meteorological haze days (MHDs) and environmental haze days (EHDs), each with different definitions and standards. Our analysis shows that although MHDs and EHDs overlap, the proportion of MHDs in EHDS is 43% in Beijing, 44% in Shanghai, and 46% in Guangzhou. Meanwhile, there is large percentage of MHDs that are not EHDs, about 21% in Beijing, 42% in Shanghai and 67% in Guangzhou. Therefore, an explicit distinction of the two haze definitions should be made in the study of PM pollution variation and cause in China, which will have important applications in addressing air pollution, formulating environmental policy, and dealing with the health effect of haze in China.
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影响因子：
20.6
作者：
Mao L;Liu R;Liao W;Wang X;Shao M;Liu SC;Zhang Y
通讯作者：
Zhang Y
人为无机盐驱动的气溶胶液态水：暗示其在华北平原雾霾形成中的关键作用
DOI：
10.1021/acs.estlett.8b00021
发表时间：
2018-02
期刊：
Environ. Sci. Technol. Lett.
影响因子：
--
作者：
Zhijun Wu;Yu Wang;Tianyi Tan;Yishu Zhu;Mengren Li;Dongjie Shang;Haichao Wang;Keding Lu;Song Guo;Limin Zeng;Yuanhang Zhang
通讯作者：
Yuanhang Zhang
影响因子：
64.8
作者：
Huang, Ru-Jin;Zhang, Yanlin;Prevot, Andre S. H.
通讯作者：
Prevot, Andre S. H.
影响因子：
6.3
作者：
Shuyun Zhao;Hua Zhang;B. Xie
通讯作者：
Shuyun Zhao;Hua Zhang;B. Xie
DOI：
10.1073/pnas.1900125116
发表时间：
2019-04-30
影响因子：
11.1
作者：
An, Zhisheng;Huang, Ru-Jin;Ji, Yuemeng
通讯作者：
Ji, Yuemeng