Articles | Volume 17, issue 3
Atmos. Chem. Phys., 17, 1775–1789, 2017
https://doi.org/10.5194/acp-17-1775-2017

Special issue: East Asia emissions assessment (EA2)

Atmos. Chem. Phys., 17, 1775–1789, 2017
https://doi.org/10.5194/acp-17-1775-2017
Research article
06 Feb 2017
Research article | 06 Feb 2017

Cleaning up the air: effectiveness of air quality policy for SO2 and NOx emissions in China

Ronald J. van der A et al.

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Subject: Gases | Research Activity: Remote Sensing | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Boersma, K. F., Eskes, H. J., Dirksen, R. J., van der A, R. J., Veefkind, J. P., Stammes, P., Huijnen, V., Kleipool, Q. L., Sneep, M., Claas, J., Leitão, J., Richter, A., Zhou, Y., and Brunner, D.: An improved tropospheric NO2 column retrieval algorithm for the Ozone Monitoring Instrument, Atmos. Meas. Tech., 4, 1905–1928, https://doi.org/10.5194/amt-4-1905-2011, 2011.
Boersma, K. F., Vinken, G. C. M., and Tournadre, J.: Ships going slow in reducing their NOx emissions: changes in 2005–2012 ship exhaust inferred from satellite measurements over Europe, Environ. Res. Lett., 10, 074007, https://doi.org/10.1088/1748-9326/10/7/074007, 2015.
Brenot, H., Theys, N., Clarisse, L., van Geffen, J., van Gent, J., Van Roozendael, M., van der A, R., Hurtmans, D., Coheur, P.-F., Clerbaux, C., Valks, P., Hedelt, P., Prata, F., Rasson, O., Sievers, K., and Zehner, C.: Support to Aviation Control Service (SACS): an online service for near-real-time satellite monitoring of volcanic plumes, Nat. Hazards Earth Syst. Sci., 14, 1099–1123, https://doi.org/10.5194/nhess-14-1099-2014, 2014.
CAAC: Clean Air Alliance of China, State Council air pollution prevention and control action plan, issue II, October 2013, available at: http://en.cleanairchina.org/product/6346.html (English translation), (last access: 8 October 2015), 2013.
Chen, W. and Xu, R.: Clean coal technology development in China, Energ. Policy, 38, 2123–2130, https://doi.org/10.1016/j.enpol.2009.06.003, 2010.
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Short summary
The SO2 concentrations and NOx emissions over China derived from satellite observations are compared with the national fossil fuel consumption and air quality regulations. It is shown that not only NO2 concentrations but also NOx emissions in all Chinese provinces decreased in the last 2 years. We conclude that without the air quality regulations the SO2 concentrations would be about 2.5 times higher and the NO2 concentrations would be at least 25 % higher than they are today in China.
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