城市大气颗粒物的空间分布研究2

The research purpose of this paper is to provide basic data for future related scientific research,provide reference for the management decision of atmospheric environmental pollution control,provide certain data support for the selection of atmospheric environmental pollution control direction and method in the region,and understand the corresponding pollution level and pollution characteristics of moderate particulate matter such as PM2.5 and PM10 in Guangzhou to a certain extent.Taking the locations around Zhujiang New Town as the research object,the research methods of field investigation and detection and data analysis were used to measure and analyze the concentration of atmospheric particulate matter in the air in Zhujiang New Town and other 10 monitoring points around it,and understand the air quality and pollution status in the test area at different times.(1)The study found that compared with Guangdong East Railway Station and Xiaobei and other areas,the atmospheric environment quality in the central area of Zhujiang New Town near the city center was better,and the concentrations of PM2.5,PM1.0 and PM10 were lower in the main hours of the day and the most polluted periods.(2)Through the analysis and analysis of 11 monitoring points,it was found that the air quality of the five test points of Guangdong East Railway Station,Gangding,Tancun,Kecun and Ouzhuang was poor,and the concentrations of PM2.5,PM1.0 and PM10 were higher.(3)Among the 11 test points,the test sites of Xiaobei,Datang and Keyun Road are relatively empty,with less people and vehicles,richer regional greening,and fewer construction sites and commercial blocks,so the air quality is better during the test period,and the concentrations of PM2.5,PM1.0 and PM10 are lower.(4)From the environment of the test site and the measured data,it can be concluded that the concentration of atmospheric particulate matter at noon is higher than the concentration in other time periods during the day.The concentration of particulate matter in the atmosphere is affected by climate temperature,humidity and wind speed,and pollution sources such as traffic flow,people flow,and building communities in the test environment will affect it.The author suggests that measures such as restrictions on fuel vehicles be adopted to advocate the vigorous development of new energy vehicles;Optimize the industrial structure,eliminate backward industries,and reduce the impact and damage of electric power,steel building materials,petrochemical,kerosene and other industries on air quality;Relevant departments raise air emission standards,and at the same time formulate appropriate feedback mechanisms for citizens to supervise all walks of life with citizens;Accelerate the monitoring system of PM2.5 and other atmospheric particulate matter,increase the density of detection network deployment and control,regularly feedback the content of PM2.5 and other atmospheric particulate matter,and build a convenient air quality information feedback platform;finally,some plants with strong comprehensive purification ability can be added to urban construction and garden configuration,such as almonds and Ficus microphylla.