Articles | Volume 20, issue 3
Atmos. Chem. Phys., 20, 1701–1722, 2020
https://doi.org/10.5194/acp-20-1701-2020

Special issue: Air Quality Research at Street-Level (ACP/GMD inter-journal...

Atmos. Chem. Phys., 20, 1701–1722, 2020
https://doi.org/10.5194/acp-20-1701-2020

Research article 12 Feb 2020

Research article | 12 Feb 2020

A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks

Liyuan Zhou et al.

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Short summary
The study reports the transition in the atmospheric emission of particles and gases from on-road heavy-duty trucks (HDTs) caused by the modernisation of the fleet. We measured particle number (PN), particle mass (PM), black carbon (BC), nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbon (HC), particle size distributions, and volatility in the plumes of 556 individual HDTs. Significant but different changes in emissions were evident for various pollutants with respect to emission standards.
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