Emission Regulations Altered the Concentrations, Origin, and Formation of Carbonaceous Aerosols in the Tokyo Metropolitan Area

被引：4

作者：

Miyakawa, Takuma ^{[1
,2
]}

Kanaya, Yugo ^{[1
,2
]}

Komazaki, Yuichi ^{[1
]}

Miyoshi, Takao ^{[3
]}

Nara, Hideki ^{[3
]}

Takami, Akinori ^{[3
]}

Moteki, Nobuhiro ^{[4
]}

Koike, Makoto ^{[4
]}

Kondo, Yutaka ^{[4
,5
]}

机构：

[1] Japan Agcy Marine Earth Sci & Technol, Dept Environm Geochem Cycle Res, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan

[2] Japan Agcy Marine Earth Sci & Technol, Inst Arctic Climate & Environm Res, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan

[3] Natl Inst Environm Studies, Ctr Reg Environm Res, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan

[4] Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138654, Japan

[5] Natl Inst Polar Res, 10-3 Midori Cho, Tachikawa, Tokyo 1908518, Japan

来源：

AEROSOL AND AIR QUALITY RESEARCH | 2016年 / 16卷 / 07期

关键词：

Emission regulations; Carbonaceous aerosols; SOA; Biogenic carbons; ORGANIC AEROSOL; DIESEL EXHAUST; GLOBAL-MODEL; MASS; PARTICLES; JAPAN;

D O I：

10.4209/aaqr.2015.11.0624

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

To investigate the effects of the regulations of diesel and non-methane hydrocarbon (NMHCs) emissions in the Tokyo metropolitan area (TMA) on the characteristics of carbonaceous aerosols (organic carbon (OC) and elemental carbon (EC)), we conducted field observations to characterize carbonaceous aerosols in the TMA in the summer of 2004 and 2014 (the end of July-middle of August). Following the enforcement of diesel emission regulations, EC concentrations showed a four-fold decrease from 2004 to 2014. However, OC concentrations showed no significant decrease in the last decade. Multiple chemical analyses revealed the differences in the impacts of the contribution of oxygenated fraction, biogenic NMHCs on OC, and the secondary organic aerosol-Ozone relationship between 2004 and 2014. Further investigations into the emission inventory for recent years, especially in terms of precursor gases, are needed for better prediction of OC in the TMA using chemical transport models.

引用

页码：1603 / 1614

页数：12

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