Measurement report: Spatiotemporal and policy-related variations of PM2.5 composition and sources during 2015–2019 at multiple sites in a Chinese megacity
State Environmental Protection Key Laboratory of Urban Ambient Air
Particulate Matter Pollution Prevention and Control, College of
Environmental Science and Engineering, Nankai University, Tianjin, 300350,
China
State Environmental Protection Key Laboratory of Urban Ambient Air
Particulate Matter Pollution Prevention and Control, College of
Environmental Science and Engineering, Nankai University, Tianjin, 300350,
China
CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research (CLAER/CMA-NKU), Tianjin, 300350, China
Qianqian Xue
State Environmental Protection Key Laboratory of Urban Ambient Air
Particulate Matter Pollution Prevention and Control, College of
Environmental Science and Engineering, Nankai University, Tianjin, 300350,
China
Danlin Song
Chengdu Research Academy of Environmental Sciences, Chengdu, 610072, China
Fengxia Huang
Chengdu Research Academy of Environmental Sciences, Chengdu, 610072, China
State Environmental Protection Key Laboratory of Urban Ambient Air
Particulate Matter Pollution Prevention and Control, College of
Environmental Science and Engineering, Nankai University, Tianjin, 300350,
China
Viewed
Total article views: 3,634 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
2,537
1,009
88
3,634
331
90
145
HTML: 2,537
PDF: 1,009
XML: 88
Total: 3,634
Supplement: 331
BibTeX: 90
EndNote: 145
Views and downloads (calculated since 09 Jun 2021)
Cumulative views and downloads
(calculated since 09 Jun 2021)
Total article views: 2,730 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
1,949
713
68
2,730
191
78
133
HTML: 1,949
PDF: 713
XML: 68
Total: 2,730
Supplement: 191
BibTeX: 78
EndNote: 133
Views and downloads (calculated since 04 Nov 2021)
Cumulative views and downloads
(calculated since 04 Nov 2021)
Total article views: 904 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
588
296
20
904
140
12
12
HTML: 588
PDF: 296
XML: 20
Total: 904
Supplement: 140
BibTeX: 12
EndNote: 12
Views and downloads (calculated since 09 Jun 2021)
Cumulative views and downloads
(calculated since 09 Jun 2021)
Viewed (geographical distribution)
Total article views: 3,634 (including HTML, PDF, and XML)
Thereof 3,614 with geography defined
and 20 with unknown origin.
Total article views: 2,730 (including HTML, PDF, and XML)
Thereof 2,720 with geography defined
and 10 with unknown origin.
Total article views: 904 (including HTML, PDF, and XML)
Thereof 894 with geography defined
and 10 with unknown origin.
This study focused on PM2.5 compositions and sources and explored their spatiotemporal and policy-related variations based on observation at 19 sites during wintertime of 2015–2019 in a fast-developing megacity. We found that PM2.5 compositions for the outermost zone in 2019 were similar to those for the core zone 2 or 3 years ago. Percentage contributions of coal and biomass combustion dramatically declined in the core zone, while the traffic source showed an increasing trend.
This study focused on PM2.5 compositions and sources and explored their spatiotemporal and...
