干旱区研究 ›› 2019, Vol. 36 ›› Issue (4): 990-996.

• 生态与环境 • 上一篇    

3 a内蒙古地区臭氧浓度时空变化及其影响因素

陈志青1,邵天杰1,赵景波1,2   

  1. 1. 陕西师范大学地理科学与旅游学院,陕西 西安 710119; 2. 中国科学院地球环境研究所气溶胶化学与物理重点实验室,陕西 西安 710061
  • 收稿日期:2018-09-25 修回日期:2019-03-11 出版日期:2019-07-15 发布日期:2019-07-15
  • 通讯作者: 邵天杰
  • 作者简介:陈志青(1983-),女,博士生,主要从事生态学及大气环境研究. E-mail: zhiqing0616@163.com
  • 基金资助:
    国家自然科学基金国际合作重大项目(41210002);中国科学院气溶胶化学与物理重点实验室项目(KLACP-2018-01)

Spatiotemporal Variation of Ozone Concentration and Its Affecting Factors over Inner Mongolia in Recent 3 Years

CHEN Zhi-qing1, SHAO Tian-jie1, ZHAO Jing-bo1, 2   

  1. 1. School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, Shaanxi, China;
    2. Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, Shaanxi, China
  • Received:2018-09-25 Revised:2019-03-11 Online:2019-07-15 Published:2019-07-15

摘要: 为科学认识内蒙古地区臭氧(O3)污染特征及其影响因素,对内蒙古地区12个盟市20152017年国控环境监测站点和国家气象台站数据进行了分析。结果表明:2017年较2015O3浓度和污染形势整体上呈加重趋势,58O3浓度最高,污染最为严重,且在7月达到O3浓度峰值。空间变化上,内蒙古中西部地区O3污染浓度较高,东部地区O3污染浓度较低,与内蒙古的经济发展水平表现出一定的同步性。颗粒物、前体物和气象因素等都是影响O3浓度的重要因子,其中,PM2.5CONO2均与O3浓度呈显著负相关,O3浓度随相对湿度的升高逐渐下降。

关键词: 臭氧浓度, 颗粒物, 时空变化, 相对湿度, 内蒙古

Abstract: In order to study the O3 pollution over Inner Mongolia and its affecting factors, the data from the national environmental monitoring stations and national meteorological stations in 12 cities in Inner Mongolia from 2015 to 2017 were analyzed. The results showed that O3 pollution at different levels occurred in all the 12 cities. The overall O3 pollution in 2017 was aggravated compared with that in 2015, the O3 concentration was the highest and the O3 pollution was the most serious during the period from May to August, especially in July. Spatially, the O3 pollution was comparatively serious in the central and western parts of Inner Mongolia, which was synchronous with the economic development level. Particles, precursors and meteorological factors are the important factors affecting O3 concentration. There were the significantly negative correlations between the O3 concentration and the PM2.5, CO and NO2, and the O3 concentration decreased gradually with the increase of relative humidity.

Key words: ozone concentration, particulate matter, spatiotemporal variation, relative humidity, Inner Mongolia