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2018年春节期间京津冀及周边区域空气质量分析
Analysis of Air Quality in Beijing-Tianjin-Hebei and Surrounding Areas During the Spring Festival of 2018
投稿时间:2018-08-15  修订日期:2018-12-24
DOI:10.19316/j.issn.1002-6002.2019.05.01
中文关键词:  京津冀及周边区域  春节  重污染  烟花爆竹
英文关键词:Beijing-Tianjin-Hebei and surrounding areas  Spring Festival  heavy pollution  fireworks
基金项目:国家大气污染成因与控制技术专项“我国臭氧污染防治技术和管理体系研究”(2017YFC0212801);国家环保公益性行业科研专项“我国大气污染的区域性特征与空气质量管理分区研究”(201509001)
作者单位
解淑艳 中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012 
王胜杰 中国气象工程咨询中心,北京100081 
刀谞 中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012 
郑皓皓 中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012 
洪纲 石家庄市环境监控中心,河北 石家庄050022 
张霞 中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012 
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中文摘要:
      分析了2018年春节期间京津冀及周边区域空气质量状况,结果表明,京津冀及周边区域2018年春节期间空气污染较重,以石家庄、邢台、邯郸、晋城、长治为中心的区域污染最重,此次重污染过程呈污染范围大、持续时间长的特点。受微风、高湿、逆温等不利气象条件影响,颗粒物污染不断积累和二次转化。除夕(2月15日)至初六(2月21日),北京首要污染源为机动车尾气源,张家口、保定、太原、郑州为燃煤源,太原和廊坊烟花源占比高于其他城市。自除夕(2月15日)下午开始,区域内各城市烟花爆竹燃放相关离子浓度有不同程度的增加,北京、保定烟花源贡献率与贡献浓度与2017年春节期间相比有所下降。2018年春节期间PM2.5浓度明显高于2015—2017年,区域南部空气质量较差,重污染区域主要集中在以石家庄、邢台、邯郸、长治、晋城为中心的区域。
英文摘要:
      The air pollution process in Beijing-Tianjin-Hebei and surrounding areas during the Spring Festival of 2018 was analyzed in this paper. The results showed that the air pollution in local areas was serious, especially the areas centered on Shijiazhuang, Xingtai, Handan, Jincheng and Changzhi were the most polluted. It was characterized by large range and long duration. Affected by unfavorable meteorological conditions including breeze, high humidity and temperature inversion, particulate pollution accumulated and transformed continuously. From February 15th to February 21th, the main pollution source in Beijing was motor vehicle exhaust, while Zhangjiakou, Baoding, Taiyuan and Zhengzhou were coal-burning sources. The proportion of fireworks sources in Taiyuan and Langfang was higher than that in other cities. Since the afternoon of New Year’s Eve, the concentration of ions related to fireworks in different cities had increased in varying degrees. The contribution rate and concentration of fireworks sources in Beijing and Baoding were decreased compared with the Spring Festival period in 2017. During the Spring Festival in 2018, the concentration of PM2.5 was significantly higher than that of the previous three years. The air quality in the south of the region was more serious. The heavily polluted areas were mainly concentrated in Shijiazhuang, Xingtai, Handan, Changzhi and Jincheng.
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