The impact of traffic on air quality in Ireland: insights from the simultaneous kerbside and suburban monitoring of submicron aerosols

doi:10.5194/acp-20-10513-2020

IEECAS OpenIR

	The impact of traffic on air quality in Ireland: insights from the simultaneous kerbside and suburban monitoring of submicron aerosols
	Lin, Chunshui 1,2,3,4; Ceburnis, Darius 1; Xu, Wei 1,2,3; Heffernan, Eimear 5,6; Hellebust, Stig 5,6; Gallagher, John 7; Huang, Ru-Jin 1,2,3,4; O'Dowd, Colin 1; Ovadnevaite, Jurgita 1
通讯作者	Huang, Ru-Jin(rujin.huang@ieecas.cn) ; O'Dowd, Colin(colin.odowd@nuigalway.ie)
	2020-09-10
发表期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
卷号	20 期号:17 页码:10513-10529
摘要	To evaluate the impact of traffic on urban air quality, the chemical composition of submicron aerosols (PM1) and sources of organic aerosol (OA) were simultaneously investigated at a kerbside site in the Dublin city center and a residential site in suburban Dublin (similar to 5 km apart) from 4 September to 9 November in 2018. Through the detailed comparison of a 1-week nonheating period from 10 to 17 September and a 1-week heating period from 27 October to 4 November, black carbon (BC) was found to be the most dominant component (38%-55% or 5.6-7.1 mu gm(-3)) of PM1 at the kerbside, while OA was the most important (46%-64% of PM1 or 1.0-8.1 mu g m(-3)) at the residential site. The daily and weekly cycle of BC at the kerbside during the nonheating period pointed to the major source of vehicular emissions, consistent with that for nitrogen oxides (NOx). However, traffic emissions were found to have a minor impact on air quality at the residential site, due to its distance from traffic sources and the effects of wind speed and wind direction. As a result of vehicular emissions and the street canyon effect, the kerbside increment (from the urban background) ratio of up to 25 : 1 was found for BC during the nonheating period but reduced to 10 : 1 during the heating period due to the additional sources of solid fuel burning impacting the air quality at both sites simultaneously. OA source analysis shows only 16%-28% (0.9-1.0 mu g m(-3); upper limit for traffic due to the additional heating source of hydrocarbon-like OA - HOA) of OA at the kerbside associated with vehicular emissions, with higher contributions from cooking (18 %-36% or 1.2 mu g m(-3)), solid fuel burning (38% or 2.4 mu g m(-3); resolved only during the heating period), and oxygenated OA (29 %-37% or 1.2-1.9 mu g m(-3)). At the residential site, solid fuel burning contributed to 60% (4.9 mu g m(-3)) of OA during the heating period, while oxygenated OA (OOA) accounted for almost 65% (0.6 mu g m(-3)) of OA during the nonheating period. Based on simultaneous investigations of PM1 at different urban settings (i.e., residential versus kerbside), this study highlights the temporal and spatial variability of sources within the Dublin city center and the need for additional aerosol characterization studies to improve targeted mitigation solutions for greater impact on urban air quality. Moreover, traffic and residential heating may hold different implications for health and climate, as indicated by the significant increment of BC at the kerbside and the large geographic impact of OA from residential heating at both the kerbside and residential sites.
DOI	10.5194/acp-20-10513-2020
关键词[WOS]	SECONDARY ORGANIC AEROSOL ; SOURCE APPORTIONMENT ; COMBUSTION EMISSIONS ; CHEMICAL-COMPOSITION ; WINTERTIME AEROSOL ; PARTICULATE MATTER ; URBAN ; POLLUTION ; COOKING ; TRANSPORT
收录类别	SCI ; SCI
语种	英语
资助项目	EPA Ireland[2016-CCRP-MS-31] ; EPA Ireland[2013-EH-MS-15] ; National Natural Science Foundation of China[41925015] ; National Natural Science Foundation of China[91644219] ; National Natural Science Foundation of China[41877408] ; Irish Research Council[GOIPG/2015/3051] ; Chinese Academy of Sciences[ZDBS-LYDQC001] ; Chinese Academy of Sciences[XDB40030202] ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology (SKLLQG)[SKLLQGTD1801] ; National Key Research and Development Program of China[2017YFC0212701] ; COST Action[CA16109] ; Department of Communications, Climate Action, and Environment (DCCAE) ; MaREI, the SFI Research Centre for Energy, Climate, and Marine
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
项目资助者	EPA Ireland ; National Natural Science Foundation of China ; Irish Research Council ; Chinese Academy of Sciences ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology (SKLLQG) ; National Key Research and Development Program of China ; COST Action ; Department of Communications, Climate Action, and Environment (DCCAE) ; MaREI, the SFI Research Centre for Energy, Climate, and Marine
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000571461600001
出版者	COPERNICUS GESELLSCHAFT MBH
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15336
专题	中国科学院地球环境研究所
通讯作者	Huang, Ru-Jin; O'Dowd, Colin
作者单位	1.Natl Univ Ireland Galway, Ryan Inst Ctr Climate & Air Pollut Studies, Sch Phys, Univ Rd, Galway H91 CF50, Ireland 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 5.Univ Coll Cork, Sch Chem, Cork T23 XE10, Ireland 6.Univ Coll Cork, Environm Res Inst, Cork T23 XE10, Ireland 7.Univ Dublin, Trinity Coll Dublin, Dept Civil Struct & Environm Engn, Dublin D02 PN40, Ireland
推荐引用方式 GB/T 7714	Lin, Chunshui,Ceburnis, Darius,Xu, Wei,et al. The impact of traffic on air quality in Ireland: insights from the simultaneous kerbside and suburban monitoring of submicron aerosols[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(17):10513-10529.
APA	Lin, Chunshui.,Ceburnis, Darius.,Xu, Wei.,Heffernan, Eimear.,Hellebust, Stig.,...&Ovadnevaite, Jurgita.(2020).The impact of traffic on air quality in Ireland: insights from the simultaneous kerbside and suburban monitoring of submicron aerosols.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(17),10513-10529.
MLA	Lin, Chunshui,et al."The impact of traffic on air quality in Ireland: insights from the simultaneous kerbside and suburban monitoring of submicron aerosols".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.17(2020):10513-10529.