Articles | Volume 19, issue 13
Atmos. Chem. Phys., 19, 8831–8843, 2019
https://doi.org/10.5194/acp-19-8831-2019
Atmos. Chem. Phys., 19, 8831–8843, 2019
https://doi.org/10.5194/acp-19-8831-2019

Research article 11 Jul 2019

Research article | 11 Jul 2019

High-resolution mapping of vehicle emissions of atmospheric pollutants based on large-scale, real-world traffic datasets

Daoyuan Yang et al.

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Cited articles

Anenberg, S. C., Miller, J., Minjares, R., Du, L., Henze, D. K., Lacey, F., Malley, C. S., Emberson, L., Franco, V., Klimont, Z., and Heyes, C.: Impacts and mitigation of excess diesel-related NOx emissions in 11 major vehicle markets, Nature, 545, 467–471, https://doi.org/10.1038/nature22086, 2017. 
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Beijing EPB (Beijing Environmental Protection Bureau): The daily average PM2.5 concentrations decreased by 30 % during the APEC Summit, available at: http://politics.people.com.cn/n/2014/1114/c1001-26019842.html (last access: 30 June 2019), 2014 (in Chinese). 
Beijing MEEB (Beijing Municipal Ecological Environment Bureau): Beijing Environmental Statement 2017, Beijing Municipal Ecological Environment Bureau, Beijing, P. R. China, available at: http://www.bjepb.gov.cn/bjhrb/xxgk/ywdt/hjzlzk/hjzkgb65/index.html (last access: 30 June 2019), 2018a (in Chinese). 
Beijing MEEB (Beijing Municipal Ecological Environment Bureau): Beijing has released the newest source apportionment results of ambient PM2.5 concentrations, available at: http://www.xinhuanet.com/politics/2018-05/15/c_1122832062.htm (last access: 30 June 2019), 2018b (in Chinese). 
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Our work developed a high-resolution emission inventory (EMBEV-Link) with extensive traffic data covering the entire city of Beijing, which mapped the heterogeneity of road emissions associated with traffic dynamics. Nonlocal trucks accounted for substantial emissions (e.g., ~ 30 % of NOx), though they are missing in previous inventories. EMBEV-Link can support fine-grained dispersion modeling (e.g., 1 m × 1 m at hotspots) and mitigate the uncertainty in top-down emission mapping.
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