Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 16985–17002, 2021

Special issue: Air quality research at street level (ACP/GMD inter-journal...

Atmos. Chem. Phys., 21, 16985–17002, 2021
Research article
23 Nov 2021
Research article | 23 Nov 2021

Hyperfine-resolution mapping of on-road vehicle emissions with comprehensive traffic monitoring and an intelligent transportation system

Linhui Jiang 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,, 2017. 
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Chen, J., Li, W., Zhang, H., Jiang, W., Li, W., Sui, Y., Song, X., and Shibasaki, R.: Mining urban sustainable performance: GPS data-based spatio-temporal analysis on on-road braking emission, J. Clean. Prod., 270, 122489,, 2020. 
Short summary
This paper establishes a bottom-up approach to reveal a unique pattern of urban on-road vehicle emissions at a spatial resolution 1–3 orders of magnitude higher than current inventories. The results show that the hourly average on-road vehicle emissions of CO, NOx, HC, and PM2.5 are 74 kg, 40 kg, 8 kg, and 2 kg, respectively. Integrating our traffic-monitoring-based approach with urban measurements, we could address major data gaps between urban air pollutant emissions and concentrations.
Final-revised paper