Atmos. Chem. Phys. Discuss., 13, 20923-20959, 2013
www.atmos-chem-phys-discuss.net/13/20923/2013/
doi:10.5194/acpd-13-20923-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Feasibility and difficulties on China new air quality standard compliance: PRD case of PM2.5 and ozone from 2010 to 2025
H. Liu1, X. M. Wang2, J. M. Pang2, and K. B. He1,3
1State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, School of Environment, Tsinghua University, Beijing, China
2School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China
3State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China

Abstract. Improving the air quality in China is a long and arduous task. Although China has made very aggressive plan on pollutants control, the difficulties to achieve the new air quality goals are still significant. In north, PM2.5 and PM10 are still far beyond the standards. In south, O3 goal is much challenged. A lot of cities are making their city implementation plan (CIP) for new air quality goals. In this study, a southern city, Guangzhou, is selected to analyze the feasibility and difficulties on new air quality standard compliance, as well as the CIP evaluation. A comprehensive study of air quality status in Guangzhou and surrounding area is conducted based on 22 sites monitoring data of O3, PM2.5 and PM10. The monthly non-attainment rates for O3 vary in 7–25% from May to November. The city average PM2.5 concentration is 41 μg m–3 in Guangzhou in 2010, which needs to be reduced by at least 15% to achieve the target of 35 μg m–3. The PM2.5 high violate months are from November to March. Guangzhou CIP was then evaluated with PM2.5 and O3 placed in a core position. The emission amount of NOx, PM10, PM2.5 and VOC in 2025 would be controlled to 600, 420, 200 and 860 thousand tons respectively. Analysis of air quality using the MM5-STEM model suggests that the long-term control measures would achieve the PM2.5 and PM10 goals successfully by 2025. The PM2.5 annual average concentration would be reduced to 20.8 μg m–3 in 2025. The O3 non-attainment rate would increase from 7.1% in 2010 to 12.9% in 2025 and become the most primary atmospheric environmental problem. Guangzhou needs very strong control on VOCs to reduce its ozone. The VOC / NOx reduction ratio should reach at least 2 : 1 (in California, it is about 3 : 1), instead of the current plan of 0.7 : 1. The evaporative emissions control from vehicle non-tailpipe emission and solvent usage should be enhanced and regional ozone transport must be taken into account.

Citation: Liu, H., Wang, X. M., Pang, J. M., and He, K. B.: Feasibility and difficulties on China new air quality standard compliance: PRD case of PM2.5 and ozone from 2010 to 2025, Atmos. Chem. Phys. Discuss., 13, 20923-20959, doi:10.5194/acpd-13-20923-2013, 2013.
 
Search ACPD
Discussion Paper
PDF XML
Citation
Share