近3 a内蒙古地区臭氧浓度时空变化及其影响因素

doi:10.13866/j.azr.2019.04.24

摘要/Abstract

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2015—2017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2015年O₃浓度和污染形势整体上呈加重趋势,5—8月O₃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,PM_2.5、CO、NO₂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 in Inner Mongolia and its influential 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 overall O₃ pollution in 2017 was aggravated compared with that in 2015 and the O₃ concentration was the highest and the most serious during the period from May to August,especially in July. Spatially,the O₃ pollution was relatively more serious in the central and western parts of Inner Mongolia,while lower in the east parts which was synchronous with the economic development level. Particles,precursors and meteorological factors were the important factors affecting O₃ concentration. There were the significantly negative correlations between the O₃ concentration and the PM_2.5,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

陈志青, 邵天杰, 赵景波. 近3 a内蒙古地区臭氧浓度时空变化及其影响因素[J]. 干旱区研究, 2019, 36(4): 990-996.

CHEN Zhi-qing, SHAO Tian-jie, ZHAO Jing-bo. Spatiotemporal Variation of Ozone Concentration and Its Influential Factors in Inner Mongolia in Recent 3 Years[J]. Arid Zone Research, 2019, 36(4): 990-996.

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