气候变化领域集成服务门户(CCPortal): Decreasing trend of elemental carbon concentration with changes in major sources at Mega city Nagoya, Central Japan

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DOI	10.1016/j.atmosenv.2018.11.014
	Decreasing trend of elemental carbon concentration with changes in major sources at Mega city Nagoya, Central Japan
	Yamagami, Makiko 1; Ikemori, Fumikazu 1; Nakashima, Hironori 1; Hisatsune, Kunihiro 1; Osada, Kazuo 2
发表日期	2019
ISSN	1352-2310
EISSN	1873-2844
卷号	199 页码:155-163
英文摘要	The atmospheric concentration of elemental carbon (EC) in aerosol particles is a key parameter related to global warming and health effects. Emission regulations for diesel exhaust intended to reduce EC concentrations have been strengthened in recent years. To investigate regulation effects in Japan, daily EC concentrations in the megacity of Nagoya, central Japan, were measured during April 2003-March 2016. The EC concentrations showed a decreasing trend with changing seasonal variation: high concentrations were found in autumn and winter before 2011, but no seasonal variation was discernible after 2012. Strong correlation was found for annual vehicular EC emissions and annual mean EC concentrations during 2003-2009. However, the relation after 2010 was weaker in spring and summer. Based on the relation of EC with trace element (Pb, V, Sb, etc.) concentrations and the backward air trajectories on high concentration days, EC sources other than vehicles were found to be related to long-range transport of air pollution from China in spring and combustion of heavy oil, including ship engine exhaust, in summer.
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
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/93534
作者单位	1.Nagoya City Inst Environm Sci, Minami Ku, 5-16-8 Toyoda, Nagoya, Aichi 4570841, Japan; 2.Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan
推荐引用方式 GB/T 7714	Yamagami, Makiko,Ikemori, Fumikazu,Nakashima, Hironori,et al. Decreasing trend of elemental carbon concentration with changes in major sources at Mega city Nagoya, Central Japan[J],2019,199:155-163.
APA	Yamagami, Makiko,Ikemori, Fumikazu,Nakashima, Hironori,Hisatsune, Kunihiro,&Osada, Kazuo.(2019).Decreasing trend of elemental carbon concentration with changes in major sources at Mega city Nagoya, Central Japan.ATMOSPHERIC ENVIRONMENT,199,155-163.
MLA	Yamagami, Makiko,et al."Decreasing trend of elemental carbon concentration with changes in major sources at Mega city Nagoya, Central Japan".ATMOSPHERIC ENVIRONMENT 199(2019):155-163.