East Asia emissions assessment (EA2)
East Asia emissions assessment (EA2)
Editor(s): T. Bond, G. Carmichael, G. Frost, H. Su, and Y. Cheng
Understanding emission fluxes from earth's surface has considerable scientific importance because the variability of atmospheric composition is largely driven by emissions. Due to the rapid regional economic growth, emissions in East Asia have degraded regional air quality and visibility and damaged human health. East Asia emissions also contribute a large share of the global emissions and dominate the Asian continental outflow that travels across the Pacific. Hence they also have significant impacts on global air quality and climate and attract great attention of scientists and policy makers.

To date developing an understanding of emissions has largely relied on bottom-up approaches that aggregate fuel combustion data and emission factors. The large uncertainty in East Asia bottom-up inventories hampers interpretation of observation data and has been recognized as the bottleneck in limiting the predictive performances of chemical transport models. The community has made considerable efforts to reduce uncertainties in emission inventories, e.g., development of improved emission models, application of inverse models with top-down constraints from in situ and satellite observations. However, those different approaches are rarely compared and validated with each other. There are still large gaps among different top-down/bottom-up inventories.

Organized by the Global Emissions InitiAtive (GEIA) China Working Group, the East Asia Emissions Assessment (EA2) is designed to bridge these gaps through the integration of different approaches. The assessment includes inter-comparison of current bottom-up inventories in East Asia, development of novel emission inventory models, observation-based constraints on emissions, and evaluation and uncertainty analysis of different emission quantification approaches. The outputs from EA2 studies will not only help reduce uncertainties in East Asia inventories but also provide improved emission quantification methodologies that can be applied to other world regions.

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31 Jul 2017
Chemical composition of ambient PM2. 5 over China and relationship to precursor emissions during 2005–2012
Guannan Geng, Qiang Zhang, Dan Tong, Meng Li, Yixuan Zheng, Siwen Wang, and Kebin He
Atmos. Chem. Phys., 17, 9187–9203, https://doi.org/10.5194/acp-17-9187-2017,https://doi.org/10.5194/acp-17-9187-2017, 2017
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28 Jun 2017
Improved provincial emission inventory and speciation profiles of anthropogenic non-methane volatile organic compounds: a case study for Jiangsu, China
Yu Zhao, Pan Mao, Yaduan Zhou, Yang Yang, Jie Zhang, Shekou Wang, Yanping Dong, Fangjian Xie, Yiyong Yu, and Wenqing Li
Atmos. Chem. Phys., 17, 7733–7756, https://doi.org/10.5194/acp-17-7733-2017,https://doi.org/10.5194/acp-17-7733-2017, 2017
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09 Jun 2017
Measurement of PM and its chemical composition in real-world emissions from non-road and on-road diesel vehicles
Min Cui, Yingjun Chen, Yanli Feng, Cheng Li, Junyu Zheng, Chongguo Tian, Caiqing Yan, and Mei Zheng
Atmos. Chem. Phys., 17, 6779–6795, https://doi.org/10.5194/acp-17-6779-2017,https://doi.org/10.5194/acp-17-6779-2017, 2017
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30 May 2017
Comparison of emissions inventories of anthropogenic air pollutants and greenhouse gases in China
Eri Saikawa, Hankyul Kim, Min Zhong, Alexander Avramov, Yu Zhao, Greet Janssens-Maenhout, Jun-ichi Kurokawa, Zbigniew Klimont, Fabian Wagner, Vaishali Naik, Larry W. Horowitz, and Qiang Zhang
Atmos. Chem. Phys., 17, 6393–6421, https://doi.org/10.5194/acp-17-6393-2017,https://doi.org/10.5194/acp-17-6393-2017, 2017
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28 Mar 2017
Impact of spatial proxies on the representation of bottom-up emission inventories: A satellite-based analysis
Guannan Geng, Qiang Zhang, Randall V. Martin, Jintai Lin, Hong Huo, Bo Zheng, Siwen Wang, and Kebin He
Atmos. Chem. Phys., 17, 4131–4145, https://doi.org/10.5194/acp-17-4131-2017,https://doi.org/10.5194/acp-17-4131-2017, 2017
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23 Feb 2017
A comprehensive biomass burning emission inventory with high spatial and temporal resolution in China
Ying Zhou, Xiaofan Xing, Jianlei Lang, Dongsheng Chen, Shuiyuan Cheng, Lin Wei, Xiao Wei, and Chao Liu
Atmos. Chem. Phys., 17, 2839–2864, https://doi.org/10.5194/acp-17-2839-2017,https://doi.org/10.5194/acp-17-2839-2017, 2017
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06 Feb 2017
Cleaning up the air: effectiveness of air quality policy for SO2 and NOx emissions in China
Ronald J. van der A, Bas Mijling, Jieying Ding, Maria Elissavet Koukouli, Fei Liu, Qing Li, Huiqin Mao, and Nicolas Theys
Atmos. Chem. Phys., 17, 1775–1789, https://doi.org/10.5194/acp-17-1775-2017,https://doi.org/10.5194/acp-17-1775-2017, 2017
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25 Jan 2017
Variations of China's emission estimates: response to uncertainties in energy statistics
Chaopeng Hong, Qiang Zhang, Kebin He, Dabo Guan, Meng Li, Fei Liu, and Bo Zheng
Atmos. Chem. Phys., 17, 1227–1239, https://doi.org/10.5194/acp-17-1227-2017,https://doi.org/10.5194/acp-17-1227-2017, 2017
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20 Jan 2017
MIX: a mosaic Asian anthropogenic emission inventory under the international collaboration framework of the MICS-Asia and HTAP
Meng Li, Qiang Zhang, Jun-ichi Kurokawa, Jung-Hun Woo, Kebin He, Zifeng Lu, Toshimasa Ohara, Yu Song, David G. Streets, Gregory R. Carmichael, Yafang Cheng, Chaopeng Hong, Hong Huo, Xujia Jiang, Sicong Kang, Fei Liu, Hang Su, and Bo Zheng
Atmos. Chem. Phys., 17, 935–963, https://doi.org/10.5194/acp-17-935-2017,https://doi.org/10.5194/acp-17-935-2017, 2017
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20 Jan 2017
Resolution dependence of uncertainties in gridded emission inventories: a case study in Hebei, China
Bo Zheng, Qiang Zhang, Dan Tong, Chuchu Chen, Chaopeng Hong, Meng Li, Guannan Geng, Yu Lei, Hong Huo, and Kebin He
Atmos. Chem. Phys., 17, 921–933, https://doi.org/10.5194/acp-17-921-2017,https://doi.org/10.5194/acp-17-921-2017, 2017
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04 Jan 2017
Development of a high-resolution emission inventory and its evaluation and application through air quality modeling for Jiangsu Province, China
Yaduan Zhou, Yu Zhao, Pan Mao, Qiang Zhang, Jie Zhang, Liping Qiu, and Yang Yang
Atmos. Chem. Phys., 17, 211–233, https://doi.org/10.5194/acp-17-211-2017,https://doi.org/10.5194/acp-17-211-2017, 2017
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23 Sep 2016
Drainage and tillage practices in the winter fallow season mitigate CH4 and N2O emissions from a double-rice field in China
Guangbin Zhang, Haiyang Yu, Xianfang Fan, Yuting Yang, Jing Ma, and Hua Xu
Atmos. Chem. Phys., 16, 11853–11866, https://doi.org/10.5194/acp-16-11853-2016,https://doi.org/10.5194/acp-16-11853-2016, 2016
12 Sep 2016
Source apportionment of PM2.5 at a regional background site in North China using PMF linked with radiocarbon analysis: insight into the contribution of biomass burning
Zheng Zong, Xiaoping Wang, Chongguo Tian, Yingjun Chen, Lin Qu, Ling Ji, Guorui Zhi, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 16, 11249–11265, https://doi.org/10.5194/acp-16-11249-2016,https://doi.org/10.5194/acp-16-11249-2016, 2016
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09 Aug 2016
High-resolution simulation of link-level vehicle emissions and concentrations for air pollutants in a traffic-populated eastern Asian city
Shaojun Zhang, Ye Wu, Ruikun Huang, Jiandong Wang, Han Yan, Yali Zheng, and Jiming Hao
Atmos. Chem. Phys., 16, 9965–9981, https://doi.org/10.5194/acp-16-9965-2016,https://doi.org/10.5194/acp-16-9965-2016, 2016
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24 May 2016
Emission factors for gaseous and particulate pollutants from offshore diesel engine vessels in China
Fan Zhang, Yingjun Chen, Chongguo Tian, Diming Lou, Jun Li, Gan Zhang, and Volker Matthias
Atmos. Chem. Phys., 16, 6319–6334, https://doi.org/10.5194/acp-16-6319-2016,https://doi.org/10.5194/acp-16-6319-2016, 2016
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20 May 2016
Rapid growth in nitrogen dioxide pollution over Western China, 2005–2013
Yuanzheng Cui, Jintai Lin, Chunqiao Song, Mengyao Liu, Yingying Yan, Yuan Xu, and Bo Huang
Atmos. Chem. Phys., 16, 6207–6221, https://doi.org/10.5194/acp-16-6207-2016,https://doi.org/10.5194/acp-16-6207-2016, 2016
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28 Apr 2016
NOx lifetimes and emissions of cities and power plants in polluted background estimated by satellite observations
Fei Liu, Steffen Beirle, Qiang Zhang, Steffen Dörner, Kebin He, and Thomas Wagner
Atmos. Chem. Phys., 16, 5283–5298, https://doi.org/10.5194/acp-16-5283-2016,https://doi.org/10.5194/acp-16-5283-2016, 2016
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15 Mar 2016
Top-down estimates of benzene and toluene emissions in the Pearl River Delta and Hong Kong, China
Xuekun Fang, Min Shao, Andreas Stohl, Qiang Zhang, Junyu Zheng, Hai Guo, Chen Wang, Ming Wang, Jiamin Ou, Rona L. Thompson, and Ronald G. Prinn
Atmos. Chem. Phys., 16, 3369–3382, https://doi.org/10.5194/acp-16-3369-2016,https://doi.org/10.5194/acp-16-3369-2016, 2016
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23 Feb 2016
High-resolution ammonia emissions inventories in China from 1980 to 2012
Yaning Kang, Mingxu Liu, Yu Song, Xin Huang, Huan Yao, Xuhui Cai, Hongsheng Zhang, Ling Kang, Xuejun Liu, Xiaoyuan Yan, Hong He, Qiang Zhang, Min Shao, and Tong Zhu
Atmos. Chem. Phys., 16, 2043–2058, https://doi.org/10.5194/acp-16-2043-2016,https://doi.org/10.5194/acp-16-2043-2016, 2016
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03 Feb 2016
High-resolution inventory of ammonia emissions from agricultural fertilizer in China from 1978 to 2008
P. Xu, Y. J. Liao, Y. H. Lin, C. X. Zhao, C. H. Yan, M. N. Cao, G. S. Wang, and S. J. Luan
Atmos. Chem. Phys., 16, 1207–1218, https://doi.org/10.5194/acp-16-1207-2016,https://doi.org/10.5194/acp-16-1207-2016, 2016
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19 Jan 2016
Possible influence of atmospheric circulations on winter haze pollution in the Beijing–Tianjin–Hebei region, northern China
Z. Zhang, X. Zhang, D. Gong, S.-J. Kim, R. Mao, and X. Zhao
Atmos. Chem. Phys., 16, 561–571, https://doi.org/10.5194/acp-16-561-2016,https://doi.org/10.5194/acp-16-561-2016, 2016
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01 Dec 2015
High-resolution inventory of technologies, activities, and emissions of coal-fired power plants in China from 1990 to 2010
F. Liu, Q. Zhang, D. Tong, B. Zheng, M. Li, H. Huo, and K. B. He
Atmos. Chem. Phys., 15, 13299–13317, https://doi.org/10.5194/acp-15-13299-2015,https://doi.org/10.5194/acp-15-13299-2015, 2015
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12 Nov 2015
Advantages of a city-scale emission inventory for urban air quality research and policy: the case of Nanjing, a typical industrial city in the Yangtze River Delta, China
Y. Zhao, L. P. Qiu, R. Y. Xu, F. J. Xie, Q. Zhang, Y. Y. Yu, C. P. Nielsen, H. X. Qin, H. K. Wang, X. C. Wu, W. Q. Li, and J. Zhang
Atmos. Chem. Phys., 15, 12623–12644, https://doi.org/10.5194/acp-15-12623-2015,https://doi.org/10.5194/acp-15-12623-2015, 2015
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09 Oct 2015
Influence of aerosols and surface reflectance on satellite NO2 retrieval: seasonal and spatial characteristics and implications for NOx emission constraints
J.-T. Lin, M.-Y. Liu, J.-Y. Xin, K. F. Boersma, R. Spurr, R. Martin, and Q. Zhang
Atmos. Chem. Phys., 15, 11217–11241, https://doi.org/10.5194/acp-15-11217-2015,https://doi.org/10.5194/acp-15-11217-2015, 2015
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17 Sep 2015
Constraining black carbon aerosol over Asia using OMI aerosol absorption optical depth and the adjoint of GEOS-Chem
L. Zhang, D. K. Henze, G. A. Grell, G. R. Carmichael, N. Bousserez, Q. Zhang, O. Torres, C. Ahn, Z. Lu, J. Cao, and Y. Mao
Atmos. Chem. Phys., 15, 10281–10308, https://doi.org/10.5194/acp-15-10281-2015,https://doi.org/10.5194/acp-15-10281-2015, 2015
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09 Sep 2015
Quantitative assessment of atmospheric emissions of toxic heavy metals from anthropogenic sources in China: historical trend, spatial distribution, uncertainties, and control policies
H. Z. Tian, C. Y. Zhu, J. J. Gao, K. Cheng, J. M. Hao, K. Wang, S. B. Hua, Y. Wang, and J. R. Zhou
Atmos. Chem. Phys., 15, 10127–10147, https://doi.org/10.5194/acp-15-10127-2015,https://doi.org/10.5194/acp-15-10127-2015, 2015
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24 Aug 2015
NOx emission estimates during the 2014 Youth Olympic Games in Nanjing
J. Ding, R. J. van der A, B. Mijling, P. F. Levelt, and N. Hao
Atmos. Chem. Phys., 15, 9399–9412, https://doi.org/10.5194/acp-15-9399-2015,https://doi.org/10.5194/acp-15-9399-2015, 2015
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16 Jun 2015
Estimating NH3 emissions from agricultural fertilizer application in China using the bi-directional CMAQ model coupled to an agro-ecosystem model
X. Fu, S. X. Wang, L. M. Ran, J. E. Pleim, E. Cooter, J. O. Bash, V. Benson, and J. M. Hao
Atmos. Chem. Phys., 15, 6637–6649, https://doi.org/10.5194/acp-15-6637-2015,https://doi.org/10.5194/acp-15-6637-2015, 2015
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15 Jun 2015
Regional differences in Chinese SO2 emission control efficiency and policy implications
Q. Q. Zhang, Y. Wang, Q. Ma, Y. Yao, Y. Xie, and K. He
Atmos. Chem. Phys., 15, 6521–6533, https://doi.org/10.5194/acp-15-6521-2015,https://doi.org/10.5194/acp-15-6521-2015, 2015
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29 Apr 2015
Evaluating the effects of China's pollution controls on inter-annual trends and uncertainties of atmospheric mercury emissions
Y. Zhao, H. Zhong, J. Zhang, and C. P. Nielsen
Atmos. Chem. Phys., 15, 4317–4337, https://doi.org/10.5194/acp-15-4317-2015,https://doi.org/10.5194/acp-15-4317-2015, 2015
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18 Mar 2015
Chemical and stable carbon isotopic composition of PM2.5 from on-road vehicle emissions in the PRD region and implications for vehicle emission control policy
S. Dai, X. Bi, L. Y. Chan, J. He, B. Wang, X. Wang, P. Peng, G. Sheng, and J. Fu
Atmos. Chem. Phys., 15, 3097–3108, https://doi.org/10.5194/acp-15-3097-2015,https://doi.org/10.5194/acp-15-3097-2015, 2015
26 Feb 2015
Characterization of road freight transportation and its impact on the national emission inventory in China
X. F. Yang, H. Liu, H. Y. Man, and K. B. He
Atmos. Chem. Phys., 15, 2105–2118, https://doi.org/10.5194/acp-15-2105-2015,https://doi.org/10.5194/acp-15-2105-2015, 2015
24 Feb 2015
A comparison study between CMAQ-simulated and OMI-retrieved NO2 columns over East Asia for evaluation of NOx emission fluxes of INTEX-B, CAPSS, and REAS inventories
K. M. Han, S. Lee, L. S. Chang, and C. H. Song
Atmos. Chem. Phys., 15, 1913–1938, https://doi.org/10.5194/acp-15-1913-2015,https://doi.org/10.5194/acp-15-1913-2015, 2015
11 Feb 2015
Trends of non-methane hydrocarbons (NMHC) emissions in Beijing during 2002–2013
M. Wang, M. Shao, W. Chen, S. Lu, Y. Liu, B. Yuan, Q. Zhang, Q. Zhang, C.-C. Chang, B. Wang, L. Zeng, M. Hu, Y. Yang, and Y. Li
Atmos. Chem. Phys., 15, 1489–1502, https://doi.org/10.5194/acp-15-1489-2015,https://doi.org/10.5194/acp-15-1489-2015, 2015
17 Sep 2014
High-resolution mapping of vehicle emissions in China in 2008
B. Zheng, H. Huo, Q. Zhang, Z. L. Yao, X. T. Wang, X. F. Yang, H. Liu, and K. B. He
Atmos. Chem. Phys., 14, 9787–9805, https://doi.org/10.5194/acp-14-9787-2014,https://doi.org/10.5194/acp-14-9787-2014, 2014
16 Jun 2014
A temporally and spatially resolved validation of emission inventories by measurements of ambient volatile organic compounds in Beijing, China
M. Wang, M. Shao, W. Chen, B. Yuan, S. Lu, Q. Zhang, L. Zeng, and Q. Wang
Atmos. Chem. Phys., 14, 5871–5891, https://doi.org/10.5194/acp-14-5871-2014,https://doi.org/10.5194/acp-14-5871-2014, 2014
05 Jun 2014
Mapping Asian anthropogenic emissions of non-methane volatile organic compounds to multiple chemical mechanisms
M. Li, Q. Zhang, D. G. Streets, K. B. He, Y. F. Cheng, L. K. Emmons, H. Huo, S. C. Kang, Z. Lu, M. Shao, H. Su, X. Yu, and Y. Zhang
Atmos. Chem. Phys., 14, 5617–5638, https://doi.org/10.5194/acp-14-5617-2014,https://doi.org/10.5194/acp-14-5617-2014, 2014
12 May 2014
Isoprene emissions over Asia 1979–2012: impact of climate and land-use changes
T. Stavrakou, J.-F. Müller, M. Bauwens, I. De Smedt, M. Van Roozendael, A. Guenther, M. Wild, and X. Xia
Atmos. Chem. Phys., 14, 4587–4605, https://doi.org/10.5194/acp-14-4587-2014,https://doi.org/10.5194/acp-14-4587-2014, 2014
31 Mar 2014
The 2013 severe haze over southern Hebei, China: model evaluation, source apportionment, and policy implications
L. T. Wang, Z. Wei, J. Yang, Y. Zhang, F. F. Zhang, J. Su, C. C. Meng, and Q. Zhang
Atmos. Chem. Phys., 14, 3151–3173, https://doi.org/10.5194/acp-14-3151-2014,https://doi.org/10.5194/acp-14-3151-2014, 2014
07 Feb 2014
Retrieving tropospheric nitrogen dioxide from the Ozone Monitoring Instrument: effects of aerosols, surface reflectance anisotropy, and vertical profile of nitrogen dioxide
J.-T. Lin, R. V. Martin, K. F. Boersma, M. Sneep, P. Stammes, R. Spurr, P. Wang, M. Van Roozendael, K. Clémer, and H. Irie
Atmos. Chem. Phys., 14, 1441–1461, https://doi.org/10.5194/acp-14-1441-2014,https://doi.org/10.5194/acp-14-1441-2014, 2014
11 Dec 2013
Regional nitrogen oxides emission trends in East Asia observed from space
B. Mijling, R. J. van der A, and Q. Zhang
Atmos. Chem. Phys., 13, 12003–12012, https://doi.org/10.5194/acp-13-12003-2013,https://doi.org/10.5194/acp-13-12003-2013, 2013
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