Preprints
https://doi.org/10.5194/acp-2016-204
https://doi.org/10.5194/acp-2016-204

  04 Apr 2016

04 Apr 2016

Review status: this preprint has been withdrawn by the authors.

Contributions of meteorology and emission to the 2015 winter severe haze pollution episodes in Northern China

Ting Ting Liu1,2, Sunling Gong2, Meng Yu3, Qi Chao Zhao4, Huai Rui Li4, Jian Jun He5, Jie Zhang3, Lei Li3, Xu Guan Wang3, Shu Li Li3, Yan Li Lu3, Hai Tao Du6, Ya Qiang Wang2, Chun Hong Zhou2, and Hong Li Liu2 Ting Ting Liu et al.
  • 1School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China
  • 2State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • 3Langfang Bureau of Environmental Protection, Langfang, Hebei, China
  • 4Langfang Haihong Environmental Protection S&T Co., Langfang, Hebei, China
  • 5The College of Environmental Science & Engineering, Nankai University, Tianjin 300071, China
  • 6Langfang Bureau of Meteorology, Langfang, Hebei, China

Abstract. Northern China in the 2015 winter months of November and December has witnessed the most severe air pollution phenomena since the 2013 winter haze events occurred, which triggered the first ever Red Alert in the air pollution control history of Beijing, with an instantaneous PM2.5 concentration over 1 mg m−3. Analysis and modeling results show that the worsening meteorology conditions are the main reason behind this unusual increase of air pollutant concentrations and the emission control measures taken during this period of time have contributed to mitigate the air pollution in the region. This work provides a scientific insight of the emission control measures vs. meteorology impacts for the period.

This preprint has been withdrawn.

Ting Ting Liu et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Ting Ting Liu et al.

Ting Ting Liu et al.

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This preprint has been withdrawn.

Short summary
Network monitoring data of air pollutants and meteorology as well as an air quality modeling system in the Beijing–Tianjin–Hebei region were used to analyze impacts the changes of meteorology on the variation of air pollutants. Results show that the worsening meteorology conditions are the main reason behind this unusual increase of air pollutant concentrations in the winter of 2015 and the emission control measures taken during this period of time have contributed to mitigate the air pollution.
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