Nitrate-driven urban haze pollution during summertime over the North China Plain
نویسندگان
چکیده
منابع مشابه
Aerosol characterization over the North China Plain: Haze life cycle and biomass burning impacts in summer
The North China Plain experiences frequent severe haze pollution during all seasons. Here we present the results from a summer campaign that was conducted at Xianghe, a suburban site located between the megacities of Beijing and Tianjin. Aerosol particle composition was measured in situ by an Aerosol Chemical Speciation Monitor along with a suite of collocated measurements during 1–30 June 2013...
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The urban heat island (UHI), the phenomenon of higher temperatures in urban land than the surrounding rural land, is commonly attributed to changes in biophysical properties of the land surface associated with urbanization. Here we provide evidence for a long-held hypothesis that the biogeochemical effect of urban aerosol or haze pollution is also a contributor to the UHI. Our results are based...
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In order to investigate associations between summertime haze air pollution and asthma at an individual level, 52, 58, and 56 children (ages 7 to 13) attending a summer "asthma camp" were followed during the last week of June in 1991, 1992, and 1993, respectively. Most of the subjects had moderate to severe asthma. Daily records were kept of the environmental conditions, as well as of subject me...
متن کاملAnalysis of a winter regional haze event and its formation mechanism in the North China Plain
A regional haze episode occurred in the Beijing, Tianjin and Hebei province (BTH) area in the North China Plain (NCP) from 16 to 19 January 2010. Data were collected and analyzed during the time frame of 14 through 23 January 2010 to include the haze event. The increase of secondary inorganic pollutants (SO 4 , NO − 3 , NH + 4 ) in PM2.5 was observed simultaneously at four sites, especially in ...
متن کاملAnalysis of the formation of fog and haze in North China Plain (NCP)
North China Plain (NCP) is one of the most populated and polluted regions in China. During the recent years, haze and fog occur frequently and cause severely low visibility in this region. In order to better understand the impact of aerosol particles on the formation of haze and fog, a long-term record of haze and fog occurrences in the past 56 yr (from 1954–2009) over NCP is analyzed. The resu...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2018
ISSN: 1680-7324
DOI: 10.5194/acp-18-5293-2018