IGSNRR OpenIR
Estimation of daily PM2.5 concentration and its relationship with meteorological conditions in Beijing
Yin, Qian1; Wang, Jinfeng1,2; Hu, Maogui1; Wong, Hoting1
2016-10-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume48Pages:161-168
Corresponding AuthorWang, Jinfeng(wangjf@lreis.ac.cn)
AbstractWhen investigating the impact of air pollution on health, particulate matter less than 2.5 mu m in aerodynamic diameter (PM2.5) is considered more harmful than particulates of other sizes. Therefore, studies of PM2.5 have attracted more attention. Beijing, the capital of China, is notorious for its serious air pollution problem, an issue which has been of great concern to the residents, government, and related institutes for decades. However, in China, significantly less time has been devoted to observing PM2.5 than for PM10. Especially before 2013, the density of the PM2.5 ground observation network was relatively low, and the distribution of observation stations was uneven. One solution is to estimate PM2.5 concentrations from the existing data on PM10. In the present study, by analyzing the relationship between the concentrations of PM2.5 and PM10, and the meteorological conditions for each season in Beijing from 2008 to 2014, a U-shaped relationship was found between the daily maximum wind speed and the daily PM concentration, including both PM2.5 and PM10. That is, the relationship between wind speed and PM concentration is not a simple positive or negative correlation in these wind directions; their relationship has a complex effect, with higher PM at low and high wind than for moderate winds. Additionally, in contrast to previous studies, we found that the PM2.5/PM10 ratio is proportional to the mean relative humidity (MRH). According to this relationship, for each season we established a multiple nonlinear regression (MNLR) model to estimate the PM2.5 concentrations of the missing periods. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordPM10 concentration PM2.5 concentration estimation Wind speed Wind direction
DOI10.1016/j.jes.2016.03.024
WOS KeywordAEROSOL OPTICAL-PROPERTIES ; AIR-POLLUTION ; NORTH CHINA ; HEAVY HAZE ; EPISODE
Indexed BySCI
Language英语
Funding ProjectNational Science & Technology Major Program of China[2012CB955503] ; National Natural Science Foundation of China[41421001] ; National Natural Science Foundation of China[41301425] ; National Natural Science Foundation of China[41271404]
Funding OrganizationNational Science & Technology Major Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000387820400017
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/65790
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Jinfeng
Affiliation1.Chinese Acad Sci, LREIS, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Yin, Qian,Wang, Jinfeng,Hu, Maogui,et al. Estimation of daily PM2.5 concentration and its relationship with meteorological conditions in Beijing[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2016,48:161-168.
APA Yin, Qian,Wang, Jinfeng,Hu, Maogui,&Wong, Hoting.(2016).Estimation of daily PM2.5 concentration and its relationship with meteorological conditions in Beijing.JOURNAL OF ENVIRONMENTAL SCIENCES,48,161-168.
MLA Yin, Qian,et al."Estimation of daily PM2.5 concentration and its relationship with meteorological conditions in Beijing".JOURNAL OF ENVIRONMENTAL SCIENCES 48(2016):161-168.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yin, Qian]'s Articles
[Wang, Jinfeng]'s Articles
[Hu, Maogui]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yin, Qian]'s Articles
[Wang, Jinfeng]'s Articles
[Hu, Maogui]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yin, Qian]'s Articles
[Wang, Jinfeng]'s Articles
[Hu, Maogui]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.