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Spatiotemporal Characteristics of Air Pollutants (PM10, PM2.5, SO2, NO2, O-3, and CO) in the Inland Basin City of Chengdu, Southwest China
Xiao, Kuang1,2; Wang, Yuku2; Wu, Guang1; Fu, Bin2; Zhu, Yuanyuan2
2018-02-01
Source PublicationATMOSPHERE
ISSN2073-4433
Volume9Issue:2Pages:74
SubtypeArticle
Contribution Rank2
AbstractMost cities in China are experiencing severe air pollution due to rapid economic development and accelerated urbanization. Long-term air pollution data with high temporal and spatial resolutions are needed to support research into physical and chemical processes that affect air quality, and the corresponding health risks. For the first time, data on PM10, PM2.5, SO2, NO2, O-3 and CO concentrations in 23 ambient air quality automatic monitoring stations and routine meteorological were collected between January 2014 and December 2016 to determine the spatial and temporal variation in these pollutants and influencing factors in Chengdu. The annual mean concentrations of PM2.5 and PM10 exceeded the standard of Chinese Ambient Air Quality and World Health Organization guidelines standards at all of the stations. The concentrations of PM10, PM2.5, SO2 and CO decreased from 2014 to 2016, and the NO2 level was stable, whereas the O-3 level increased markedly during this period. The air pollution characteristics in Chengdu showed simultaneously high PM concentrations and O-3. High PM concentrations were mainly observed in the middle region of Chengdu and may have been due to the joint effects of industrial and vehicle emissions. Ozone pollution was mainly due to vehicle emissions in the downtown area, and industry had a more important effect on O-3 in the northern area with fewer vehicles. The concentrations of PM10, PM2.5, NO2 and CO were highest in winter and lowest in summer; the highest SO2 concentration was also observed in winter and was lowest in autumn, whereas the O-3 concentration peaked in summer. Haze pollution can easily form under the weather conditions of static wind, low temperature and relative humidity, and high surface pressure inside Chengdu. In contrast, severe ozone pollution is often associated with high temperature.
Keywordair pollutants exceeding standard levels spatiotemporal distribution
DOI10.3390/atmos9020074
Indexed BySCI
WOS KeywordPROVINCIAL CAPITAL CITIES ; PARTICULATE MATTER ; ATMOSPHERIC POLLUTANTS ; EMISSION INVENTORIES ; TEMPORAL VARIATIONS ; CLIMATE-CHANGE ; POLLUTION ; PLAIN ; URBAN ; TRANSPORT
Language英语
Funding ProjectNatural Science Foundation of China[41371539]
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000427507000040
Funding OrganizationNatural Science Foundation of China
PublisherMDPI
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/22848
Collection山区发展研究中心
Corresponding AuthorXiao, Kuang; Wang, Yuku
Affiliation1.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 611756, Sichuan, Peoples R China;
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Xiao, Kuang,Wang, Yuku,Wu, Guang,et al. Spatiotemporal Characteristics of Air Pollutants (PM10, PM2.5, SO2, NO2, O-3, and CO) in the Inland Basin City of Chengdu, Southwest China[J]. ATMOSPHERE,2018,9(2):74.
APA Xiao, Kuang,Wang, Yuku,Wu, Guang,Fu, Bin,&Zhu, Yuanyuan.(2018).Spatiotemporal Characteristics of Air Pollutants (PM10, PM2.5, SO2, NO2, O-3, and CO) in the Inland Basin City of Chengdu, Southwest China.ATMOSPHERE,9(2),74.
MLA Xiao, Kuang,et al."Spatiotemporal Characteristics of Air Pollutants (PM10, PM2.5, SO2, NO2, O-3, and CO) in the Inland Basin City of Chengdu, Southwest China".ATMOSPHERE 9.2(2018):74.
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