北辰区2013~2019年环境空气质量特征分析
Characteristics of Ambient Air Quality in Beichen District from 2013 to 2019
摘要: 利用北辰区2013~2019年环境空气质量监测数据，分析了北辰区环境空气质量特征。结果表明，北辰区除O3浓度呈现上升趋势外，PM2.5、PM10、NO2、CO、SO2浓度均呈现下降趋势，PM2.5浓度从2013年的100 μg/m3降至2019年的53 μg/m3，O3浓度从149 μg/m3升高至211 μg/m3。达标天数从122天增加到210天，综合指数从9.41降至5.69，PM2.5对综合指数的贡献率最高，其次为O3，即PM2.5依旧是环境空气中最主要的污染物，O3污染问题日益突出。PM2.5、NO2、CO、SO2四项污染物浓度季节分布均表现为冬季 > 秋季 > 春季 > 夏季，PM10表现为冬季 > 春季 > 秋季 > 夏季，O3表现为夏季 > 春季 > 秋季 > 冬季。
Abstract: The characteristics of ambient air quality in Beichen District were analyzed by using the monitoring data of ambient air quality from 2013 to 2019. The results showed that PM2.5, PM10, NO2, CO, SO2 concentrations showed downward trends, except the O3 concentration showed a rising trend. The concentration of PM2.5 decreased from 100 μg/m3 in 2013 to 53 μg/m3 in 2019, while the con-centration of O3 increased from 149 μg/m3 to 211 μg/m3. The number of days reaching the target increased from 122 to 210, and the pollution integrated index decreased from 9.41 to 5.69. PM2.5 had the highest contribution rate to the pollution integrated index, followed by O3, that the PM2.5 was still the most important pollutant in the ambient air, and O3 pollution was becoming more and more serious. The seasonal distributions of PM2.5, NO2, CO, SO2 concentration were winter > autumn > spring > summer, PM10 seasonal distribution was winter > spring > autumn > summer, while O3 seasonal distribution was summer > spring > autumn > winter.
文章引用：李鹏, 刘彬, 毕温凯, 郑乃源, 邓小文. 北辰区2013~2019年环境空气质量特征分析[J]. 环境保护前沿, 2020, 10(6): 863-868. https://doi.org/10.12677/AEP.2020.106104

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