Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-6339-2020 |
Rapid reduction in black carbon emissions from China: evidence from 2009-2019 observations on Fukue Island, Japan | |
Kanaya, Yugo1,2; Yamaji, Kazuyo1,2; Miyakawa, Takuma1; Taketani, Fumikazu1,2; Zhu, Chunmao1; Choi, Yongjoo1; Komazaki, Yuichi1; Ikeda, Kohei3; Kondo, Yutaka4; Klimont, Zbigniew5 | |
2020-06-05 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:11页码:6339-6356 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Austria |
英文摘要 | A long-term, robust observational record of atmospheric black carbon (BC) concentrations at Fukue Island for 2009-2019 was produced by unifying the data from a continuous soot monitoring system (COSMOS) and a Multi-Angle Absorption Photometer (MAAP). This record was then used to analyze emission trends from China. We identified a rapid reduction in BC concentrations of ( - 5.8 +/- 1.5) % yr(-1) or -48 % from 2010 to 2018. We concluded that an emission change of (-5.3 +/- 0.7) % yr(-1), related to changes in China of as much as -4.6 % yr(-1), was the main underlying driver. This evaluation was made after correcting for the interannual meteorological variability (IAV) by using the regional atmospheric chemistry model simulations from the Weather Research and Forecasting (WRF) and Community Multiscale Air Quality (CMAQ) models (collectively WRF/CMAQ) with the constant emissions. This resolves the current fundamental disagreements about the sign of the BC emissions trend from China over the past decade as assessed from bottom-up emission inventories. Our analysis supports inventories reflecting the governmental clean air actions after 2010 (e.g., MEIC1.3, ECLIPSE versions 5a and 6b, and the Regional Emission inventory in ASia (REAS) version 3.1) and recommends revisions to those that do not (e.g., Community Emissions Data System - CEDS). Our estimated emission trends were fairly uniform across seasons but diverse among air mass origins. Stronger BC reductions, accompanied by a reduction in carbon monoxide (CO) emissions, occurred in regions of south-central East China, while weaker BC reductions occurred in north-central East China and northeastern China. Prior to 2017, the BC and CO emissions trends were both unexpectedly positive in northeastern China during winter months, which possibly influenced the climate at higher latitudes. The pace of the estimated emissions reduction over China surpasses the Shared Socioeconomic Pathways (SSPs with reference to SSP1, specifically) scenarios for 2015-2030, which suggests highly successful emission control policies. At Fukue Island, the BC fraction of fine particulate matter (PM2.5) also steadily decreased over the last decade. This suggests that reductions in BC emissions started without significant delay when compared to other pollutants such as NOx and SO2, which are among the key precursors of scattering PM2.5. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000538582000001 |
WOS关键词 | LONG-TERM OBSERVATIONS ; ANTHROPOGENIC EMISSIONS ; ELEMENTAL CARBON ; AIR-POLLUTANTS ; BOUNDARY-LAYER ; REACTIVE GASES ; AEROSOLS ; MASS ; NO2 ; CLIMATOLOGY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/273263 |
专题 | 地球科学 |
作者单位 | 1.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Res Inst Global Change RIGC, Yokohama, Kanagawa 2360001, Japan; 2.Kobe Univ, Grad Sch Maritime Sci, Kobe, Hyogo 6578501, Japan; 3.Natl Inst Environm Studies, Ctr Global Environm Res CGER, Tsukuba, Ibaraki 3058506, Japan; 4.Natl Inst Polar Res, Tachikawa, Tokyo 1908518, Japan; 5.Int Inst Appl Syst Anal IIASA, A-2361 Laxenburg, Austria |
推荐引用方式 GB/T 7714 | Kanaya, Yugo,Yamaji, Kazuyo,Miyakawa, Takuma,et al. Rapid reduction in black carbon emissions from China: evidence from 2009-2019 observations on Fukue Island, Japan[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(11):6339-6356. |
APA | Kanaya, Yugo.,Yamaji, Kazuyo.,Miyakawa, Takuma.,Taketani, Fumikazu.,Zhu, Chunmao.,...&Klimont, Zbigniew.(2020).Rapid reduction in black carbon emissions from China: evidence from 2009-2019 observations on Fukue Island, Japan.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(11),6339-6356. |
MLA | Kanaya, Yugo,et al."Rapid reduction in black carbon emissions from China: evidence from 2009-2019 observations on Fukue Island, Japan".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.11(2020):6339-6356. |
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