粤港澳大湾区大气污染影响因素研究

Study of Influence Factors of Air Pollutants in Guangdong-Hong Kong-Macao Greater Bay Area

分析2006~2018年粤港澳大湾区四种主要空气污染物的浓度变化,并探讨其影响因素。采用灰色关联度计算社会经济因素与粤港澳大湾区空气污染物浓度的关联度。结果表明:粤港澳大湾区内的主要污染物SO2、NO2和可吸入颗粒物(PM10)的年平均浓度呈下降趋势,且较为明显,但O3年平均浓度稳中有升。第二产业比重、人口、能源消耗是影响该区域空气质量的主要因素。

This study investigates the concentration variations of air pollutants in the Guangdong-Hong Kong-Macao Greater Bay Area during 2006~2018 to identify the key factors affecting the pollutants.The correlation between social-economic factors and the pollutant concentrations is also analyzed using agrey relational analysis.The air quality monitoring results showed that the average annual concentrations of SO2,NO2 and PM10 generally decreased over the study period.However,the average annual O3 concentration increased dramatically during each year.The results indicate that industry,population,energy consumption are the main factors.