气候变化领域集成服务门户(CCPortal): The impact of measures to reduce ambient air PM10 concentrations originating from road dust; evaluated for a street canyon in Helsinki

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DOI	10.5194/acp-19-11199-2019
	The impact of measures to reduce ambient air PM10 concentrations originating from road dust; evaluated for a street canyon in Helsinki
	Stojiljkovic A.; Kauhaniemi M.; Kukkonen J.; Kupiainen K.; Karppinen A.; Rolstad Denby B.; Kousa A.; Niemi J.V.; Ketzel M.
发表日期	2019
ISSN	16807316
起始页码	11199
结束页码	11212
卷号	19 期号:17
英文摘要	We have numerically evaluated how effective selected potential measures would be for reducing the impact of road dust on ambient air particulate matter (PM10). The selected measures included a reduction of the use of studded tyres on light-duty vehicles and a reduction of the use of salt or sand for traction control. We have evaluated these measures for a street canyon located in central Helsinki for four years (2007-2009 and 2014). Air quality measurements were conducted in the street canyon for two years, 2009 and 2014. Two road dust emission models, NORTRIP (NOn-exhaust Road TRaffic Induced Particle emissions) and FORE (Forecasting Of Road dust Emissions), were applied in combination with the Operational Street Pollution Model (OSPM), a street canyon dispersion model, to compute the street increments of PM10 (i.e. the fraction of PM10 concentration originating from traffic emissions at the street level) within the street canyon. The predicted concentrations were compared with the air quality measurements. Both road dust emission models reproduced the seasonal variability of the PM10 concentrations fairly well but under-predicted the annual mean values. It was found that the largest reductions of concentrations could potentially be achieved by reducing the fraction of vehicles that use studded tyres. For instance, a 30% decrease in the number of vehicles using studded tyres would result in an average decrease in the non-exhaust street increment of PM10 from 10% to 22 %, depending on the model used and the year considered. Modelled contributions of traction sand and salt to the annual mean non-exhaust street increment of PM10 ranged from 4% to 20% for the traction sand and from 0.1% to 4% for the traction salt. The results presented here can be used to support the development of optimal strategies for reducing high springtime particulate matter concentrations originating from road dust. © Author(s) 2019.
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144174
作者单位	Finnish Environment Institute (SYKE), Helsinki, P.O. Box 140, Helsinki, 00251, Finland; Finnish Meteorological Institute, Helsinki, P.O. Box 503, Helsinki, 00101, Finland; Norwegian Meteorological Institute, P.O. Box 43, Blindern, Oslo, 0313, Norway; Helsinki Region Environmental Services Authority, P.O. Box 100, Helsinki, 00066, Finland; Department of Environmental Science, Aarhus University, P.O. Box 358, Roskilde, 4000, Denmark; Global Centre for Clean Air Research (GCARE), University of Surrey, Guildford, GU2 7XH, United Kingdom
推荐引用方式 GB/T 7714	Stojiljkovic A.,Kauhaniemi M.,Kukkonen J.,et al. The impact of measures to reduce ambient air PM10 concentrations originating from road dust; evaluated for a street canyon in Helsinki[J],2019,19(17).
APA	Stojiljkovic A..,Kauhaniemi M..,Kukkonen J..,Kupiainen K..,Karppinen A..,...&Ketzel M..(2019).The impact of measures to reduce ambient air PM10 concentrations originating from road dust; evaluated for a street canyon in Helsinki.Atmospheric Chemistry and Physics,19(17).
MLA	Stojiljkovic A.,et al."The impact of measures to reduce ambient air PM10 concentrations originating from road dust; evaluated for a street canyon in Helsinki".Atmospheric Chemistry and Physics 19.17(2019).