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: 3,755 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
2,624
1,038
93
3,755
338
94
166
HTML: 2,624
PDF: 1,038
XML: 93
Total: 3,755
Supplement: 338
BibTeX: 94
EndNote: 166
Views and downloads (calculated since 09 Jun 2021)
Cumulative views and downloads
(calculated since 09 Jun 2021)
Total article views: 2,840 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
2,030
737
73
2,840
198
81
154
HTML: 2,030
PDF: 737
XML: 73
Total: 2,840
Supplement: 198
BibTeX: 81
EndNote: 154
Views and downloads (calculated since 04 Nov 2021)
Cumulative views and downloads
(calculated since 04 Nov 2021)
Total article views: 915 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
594
301
20
915
140
13
12
HTML: 594
PDF: 301
XML: 20
Total: 915
Supplement: 140
BibTeX: 13
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: 3,755 (including HTML, PDF, and XML)
Thereof 3,728 with geography defined
and 27 with unknown origin.
Total article views: 2,840 (including HTML, PDF, and XML)
Thereof 2,823 with geography defined
and 17 with unknown origin.
Total article views: 915 (including HTML, PDF, and XML)
Thereof 905 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...
