Trends in China's anthropogenic emissions since 2010 as the consequence of clean air actions - Archive ouverte HAL Access content directly
Journal Articles Atmospheric Chemistry and Physics Year : 2018

Trends in China's anthropogenic emissions since 2010 as the consequence of clean air actions

(1) , , , , , , , , , , , , , , ,
1
Dan Tong
  • Function : Author
Meng Li
  • Function : Author
Fei Liu
  • Function : Author
Chaopeng Hong
  • Function : Author
Guannan Geng
  • Function : Author
Haiyan Li
  • Function : Author
Xin Li
  • Function : Author
Liqun Peng
  • Function : Author
Ji Qi
  • Function : Author
Liu Yan
  • Function : Author
Yuxuan Zhang
  • Function : Author
Hongyan Zhao
  • Function : Author
Yixuan Zheng
  • Function : Author
Kebin He
  • Function : Author
Qiang Zhang
  • Function : Author

Abstract

To tackle the problem of severe air pollution, China has implemented active clean air policies in recent years. As a consequence, the emissions of major air pollutants have decreased and the air quality has substantially improved. Here, we quantified China's anthropogenic emission trends from 2010 to 2017 and identified the major driving forces of these trends by using a combination of bottom-up emission inventory and index decomposition analysis (IDA) approaches. The relative change rates of China's anthropogenic emissions during 2010-2017 are estimated as follows: -62 % for SO2, -17 % for NOx, +11 % for nonmethane volatile organic compounds (NMVOCs), +1 % for NH3, -27 % for CO, -38 % for PM10, -35 % for PM2.5, -27 % for BC, -35 % for OC, and +16 % for CO2. The IDA results suggest that emission control measures are the main drivers of this reduction, in which the pollution controls on power plants and industries are the most effective mitigation measures. The emission reduction rates markedly accelerated after the year 2013, confirming the effectiveness of China's Clean Air Action that was implemented since 2013. We estimated that during 2013-2017, China's anthropogenic emissions decreased by 59 % for SO2, 21 % for NOx, 23 % for CO, 36 % for PM10, 33 % for PM2.5, 28 % for BC, and 32 % for OC. NMVOC emissions increased and NH3 emissions remained stable during 2010-2017, representing the absence of effective mitigation measures for NMVOCs and NH3 in current policies. The relative contributions of different sectors to emissions have significantly changed after several years' implementation of clean air policies, indicating that it is paramount to introduce new policies to enable further emission reductions in the future.
Fichier principal
Vignette du fichier
acp-18-14095-2018.pdf (3.29 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

insu-03721860 , version 1 (16-07-2022)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

Bo Zheng, Dan Tong, Meng Li, Fei Liu, Chaopeng Hong, et al.. Trends in China's anthropogenic emissions since 2010 as the consequence of clean air actions. Atmospheric Chemistry and Physics, 2018, 18, pp.14095-14111. ⟨10.5194/acp-18-14095-2018⟩. ⟨insu-03721860⟩
51 View
18 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More