气候变化领域集成服务门户(CCPortal): A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks

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DOI	10.5194/acp-20-1701-2020
	A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks
	Zhou L.; Liu Q.; Lee B.P.; Chan C.K.; Hallquist A.M.; Sjödin A.; Jerksjö M.; Salberg H.; Wängberg I.; Hallquist M.; Salvador C.M.; Gaita S.M.; Mellqvist J.
发表日期	2020
ISSN	16807316
起始页码	1701
结束页码	1722
卷号	20 期号:3
英文摘要	The transition, in extent and characteristics, of atmospheric emissions caused by the modernization of the heavy-duty on-road fleet was studied utilizing roadside measurements. Emissions of particle number (PN), particle mass (PM), black carbon (BC), nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbon (HC), particle size distributions, and particle volatility were measured from 556 individual heavy-duty trucks (HDTs). Substantial reductions in PM, BC, NOx, CO, and to a lesser extent PN were observed from Euro III to Euro VI HDTs by 99 %, 98 %, 93 %, and 57 % for the average emission factors of PM, BC, NOx, and CO, respectively. Despite significant total reductions in NOx emissions, the fraction of NO2 in the NOx emissions increased continuously from Euro IV to Euro VI HDTs. Larger data scattering was evident for PN emissions in comparison to solid particle number (SPN) for Euro VI HDTs, indicating a highly variable fraction of volatile particle components. Particle size distributions of Euro III to enhanced environmentally friendly vehicle (EEV) HDTs were bimodal, whereas those of Euro VI HDTs were nucleation mode dominated. High emitters disproportionately contributed to a large fraction of the total emissions with the highest-emitting 10 % of HDTs in each pollutant category being responsible for 65 % of total PM, 70 % of total PN, and 44 % of total NOx emissions. Euro VI HDTs, which accounted for 53 % of total kilometres driven by Swedish HDTs, were estimated to only contribute to 2 %, 6 %, 12 %, and 47 % of PM, BC, NOx, and PN emissions, respectively. A shift to a fleet dominated by Euro VI HDTs would promote a transition of atmospheric emissions towards low PM, BC, NOx, and CO levels. Nonetheless, reducing PN, SPN, and NO2 emissions from Euro VI HDTs is still important to improve air quality in urban environments. © 2020 Author(s).
关键词	air quality atmospheric chemistry emission control emission inventory nitrogen dioxide particle size road roadside environment size distribution traffic emission trucking Europe
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132240
推荐引用方式 GB/T 7714	Zhou L.,Liu Q.,Lee B.P.,et al. A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks[J]. Atmospheric Chemistry and Physics,2020,20(3).
APA	Zhou L..,Liu Q..,Lee B.P..,Chan C.K..,Hallquist A.M..,...&Mellqvist J..(2020).A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks.,20(3).
MLA	Zhou L.,et al."A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks".20.3(2020).