新疆生产建设兵团臭氧变化趋势及污染成因分析

Analysis of Ozone Change Trends and Pollution Causes in Xinjiang Production and Construction Corps

通过对兵团十个城市2022年空气质量站点臭氧浓度进行统计分析,发现兵团十个城市中,臭氧浓度随着季节变化先上升后下降;冬季南疆城市接近北疆城市水平,其他季节南疆均低于北疆水平;全兵团来说,北疆浓度整体高于南疆城市;十个城市中浓度最高的为北疆的双河市,最低的是南疆的图木舒克市。南疆典型城市阿拉尔市烯烃对环境空气质量臭氧污染贡献最大,其次为芳香烃;北疆典型城市石河子环境空气质量臭氧污染贡献物质主要为乙炔、乙烯、丙烯、正己烷等。

Through the statistical analysis of the ozone concentration of the air quality stations in the 10 cities of the XPCC in 2022,the results show that the ozone concentration in the 10 cities of the XPCC increases first and then decreases with the seasonal change.In winter,cities in southern of Xinjiang are close to the level of cities in northern of Xinjiang,while in other seasons,cities in southern of Xinjiang are lower than the level of cities in northern of Xinjiang.For the whole corps,the concentration in northern Xinjiang was higher than that in southern Xinjiang.Among the ten cities,the highest concentration is Shuanghe City in northern of Xinjiang,and the lowest is Tumushuk City in southern of Xinjiang.The typical city of Alaer in southern Xinjiang,has the largest contribution of olefins to ozone pollution in the ambient air quality,followed by aromatic hydrocarbons.The main contributing substances to ozone pollution in the environmental air quality of Shihezi which the typical city in northern Xinjiang,were acetylene,ethylene,propylene and n-hexane,etc.