气候变化领域集成服务门户(CCPortal): The characteristics and size of lung-depositing particles vary significantly between high and low pollution traffic environments

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DOI	10.1016/j.atmosenv.2021.118421
	The characteristics and size of lung-depositing particles vary significantly between high and low pollution traffic environments
	Salo L.; Hyvärinen A.; Jalava P.; Teinilä K.; Hooda R.K.; Datta A.; Saarikoski S.; Lintusaari H.; Lepistö T.; Martikainen S.; Rostedt A.; Sharma V.P.; Rahman M.H.; Subudhi S.; Asmi E.; Niemi J.V.; Lihavainen H.; Lal B.; Keskinen J.; Kuuluvainen H.; Timonen H.; Rönkkö T.
发表日期	2021
ISSN	1352-2310
卷号	255
英文摘要	Currently, only the mass of sub 2.5 μm and sub 10 μm particles (PM2.5, PM10) in ambient air is regulated and monitored closely, but the same increase in PM2.5 can cause different degrees of health effects in different cities (sometimes more harmful effects per unit mass in less polluted cities) (Li et al., 2019). In addition to mass concentration, other measurement metrics are needed to connect particle pollution data and health effects. In our measurements made in traffic-influenced environments in Helsinki, Finland (a relatively clean city), and Delhi-National Capital Region (Delhi-NCR), India (a polluted area), we noted a large difference in the median particle size for lung-deposited surface area (LDSA). In Helsinki, the median size was 80 nm, corresponding to soot particles emitted from diesel engines. However, the median size increased to 190 nm during a long-range transport event of air mass. In Delhi-NCR, surprisingly, the median size was even larger, 410 nm. These larger particles were likely to originate from regional sources rather than local traffic. The LDSA to PM2.5 ratio for particles in Helsinki was 2–4 times the amount in Delhi-NCR, potentially linked with the higher toxicity of a unit of particulate mass in Helsinki. © 2021 The Author(s)
关键词	Air quality LDSA Particle size distribution Traffic emissions
语种	英语
scopus关键词	Air quality; Biological organs; Particle size; Deposited surface areas; Health effects; Helsinki; Low pollution; Lung-deposited surface area; National capital regions; Particles-size distributions; PM$-2.5$; Traffic emissions; Traffic environment; Particle size analysis; ambient air; concentration (composition); environmental monitoring; particulate matter; public health; respiratory disease; toxicity; air quality; ambient air; article; city; diesel engine; Finland; lung; National Capital Territory of Delhi; particle size; particulate matter 10; particulate matter 2.5; soot; Delhi; Finland; Helsinki; India; Varsinais-Suomi
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248427
作者单位	Aerosol Physics Laboratory, Physics Unit, Tampere University, Tampere, FI-33720, Finland; Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, FI-00101, Finland; Inhalation Toxicology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio, FI-70211, Finland; Earth Sciences and Climate Change Division, The Energy and Resources Institute, New Delhi, 110003, India; Advanced Biofuels Program, The Energy and Resources Institute, New Delhi, 110003, India; Helsinki Region Environmental Services Authority, P.O. Box 100, Helsinki, FI-00066, Finland; Svalbard Integrated Arctic Earth Observing System, P.O. Box 156, Longyearbyen, 9171, Norway
推荐引用方式 GB/T 7714	Salo L.,Hyvärinen A.,Jalava P.,et al. The characteristics and size of lung-depositing particles vary significantly between high and low pollution traffic environments[J],2021,255.
APA	Salo L..,Hyvärinen A..,Jalava P..,Teinilä K..,Hooda R.K..,...&Rönkkö T..(2021).The characteristics and size of lung-depositing particles vary significantly between high and low pollution traffic environments.ATMOSPHERIC ENVIRONMENT,255.
MLA	Salo L.,et al."The characteristics and size of lung-depositing particles vary significantly between high and low pollution traffic environments".ATMOSPHERIC ENVIRONMENT 255(2021).