近3 a内蒙古地区臭氧浓度时空变化及其影响因素

Abstract

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 O₃pollution at different levels occurred in all the 12 cities. The overall O₃pollution in 2017 was aggravated compared with that in 2015, the O₃ concentration was the highest and the O₃pollution was the most serious during the period from May to August, especially in July. Spatially, the O₃pollution 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 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

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

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

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