佛山市南海区近7年NO2浓度变化特征及影响因素研究

Analysis the Variation Characteristics and Influencing Factors of NO2Concentration in Nanhai District of Foshan City

根据佛山市南海区2012~2018年环境空气质量监测数据,分析该区近7年NO2浓度的变化趋势及影响因素。结果表明:近7年佛山市南海区NO2浓度呈平稳状态,NO2浓度时间分布不均匀,最高值出现在第1、4季度。该区的NO2主要受工业污染源影响,与工业污染源呈正相关关系,同时受机动车尾气影响较大。

Based on air monitoring data during 2012~2018 in Nanhai District of Foshan City,the variation trend and Influencing factors of NO2 concentration in the past 7 years were analyzed.Results showed that NO2 concentration was stable in Nanhai District of Foshan City in the past 7 years,NO2 pollutant concentration is unevenly distributed in time,with the highest values occurring in the first and fourth quarters.NO2 is mainly affected by industrial pollution sources,and is positively related to industrial pollution sources.At the same time,it is greatly affected by motor vehicle exhaust.