Elucidating real-world vehicle emission factors from mobile measurements over a large metropolitan region: a focus on isocyanic acid, hydrogen cyanide, and black carbon
Sumi N. Wren,John Liggio,Yuemei Han,Katherine Hayden,Gang Lu,Cris M. Mihele,Richard L. Mittermeier,Craig Stroud,Jeremy J. B. Wentzell,and Jeffrey R. Brook
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
John Liggio
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Yuemei Han
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Katherine Hayden
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Gang Lu
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Cris M. Mihele
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Richard L. Mittermeier
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Craig Stroud
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
Air Quality Process Research Section, Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin St., Toronto, ON, M3H 5T4, Canada
currently at: Dalla Lana School of Public Health, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 223 College St., Toronto, ON, M5T 1R4, Canada
Viewed
Total article views: 4,711 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
3,175
1,387
149
4,711
557
122
195
HTML: 3,175
PDF: 1,387
XML: 149
Total: 4,711
Supplement: 557
BibTeX: 122
EndNote: 195
Views and downloads (calculated since 18 May 2018)
Cumulative views and downloads
(calculated since 18 May 2018)
Total article views: 3,918 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
2,768
1,018
132
3,918
348
109
179
HTML: 2,768
PDF: 1,018
XML: 132
Total: 3,918
Supplement: 348
BibTeX: 109
EndNote: 179
Views and downloads (calculated since 30 Nov 2018)
Cumulative views and downloads
(calculated since 30 Nov 2018)
Total article views: 793 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
407
369
17
793
209
13
16
HTML: 407
PDF: 369
XML: 17
Total: 793
Supplement: 209
BibTeX: 13
EndNote: 16
Views and downloads (calculated since 18 May 2018)
Cumulative views and downloads
(calculated since 18 May 2018)
Viewed (geographical distribution)
Total article views: 4,711 (including HTML, PDF, and XML)
Thereof 4,591 with geography defined
and 120 with unknown origin.
Total article views: 3,918 (including HTML, PDF, and XML)
Thereof 3,805 with geography defined
and 113 with unknown origin.
Total article views: 793 (including HTML, PDF, and XML)
Thereof 786 with geography defined
and 7 with unknown origin.
We made measurements from a mobile laboratory across a large urban area and determined fleet-average vehicle emission factors (EFs) for a suite of traffic-related air pollutants. We present the first real-world EFs for isocyanic acid (HNCO) and hydrogen cyanide (HCN) and insight into their on-road variability. We find that vehicles may represent an important source of these air toxics at an urban scale. This work has implications for understanding population exposure to these species.
We made measurements from a mobile laboratory across a large urban area and determined...
