上海中心城区2013~2020年期间环境空气质量特征影响因素研究

Research on Influencing Factors of the Ambient Air Quality Characteristics in Central urban Areas in Shanghai from 2013 to 2020

为了解发达中心城区空气质量的影响因素及探索进一步改善这类区域空气质量的可能途径,采用Excel对上海某中心城区2013~2020年常规大气污染物的变化情况进行了统计处理,研究分析了与该中心区空气质量相关的影响因素及与上海全市区域的常规污染物浓度间的关系。结果表明,2013年~2020年期间,与上海全市区域空气质量变化情况相同,该中心城区的PM_(10)、PM_(2.5)和SO;呈现显著下降趋势,O;整体呈上升趋势,NO;和CO的变化平缓;其中,PM_(2.5)的月均值变化呈现“冬高夏低”的规律,O;的月均值变化呈现“夏高冬低”的趋势,中心城区与上海全市的环境空气质量高度相关,其大气污染控制的可行措施集中在交通源,非道路移动源和厨房油烟等生活源。

In order to understand the influencing factors of air quality in developed central urban areas and explore possible ways to further improve the air quality in these areas,this paper statistically processed the changes of criteria air pollutants in a central urban area in Shanghai from 2013 to 2020 by Excel,and studied and analyzed the relationship between the influencing factors related to the air quality in the central urban area and the concentrations of criteria pollutants in Shanghai. The results showed that during the period from 2013 to 2020,the changes of air quality in the central urban area are the same as the whole city. PM_(10),PM2. 5and SO_(2)showed a significant downward trend,O_(3)showed an overall upward trend,and the changes of NO_(2)and CO were gentle. The monthly change of PM2. 5presented a pattern of " high in winter and low in summer",and O_(3)presented a trend of " high in summer and low in winter". The central urban area is highly related to the ambient air quality of the whole city. The feasible measures for air pollution control should concentrate on traffic sources,non-road mobile sources and kitchen oil fume and other living sources.