西北林学院学报2024，Vol.39Issue(4)：147-153,169,8.DOI:10.3969/j.issn.1001-7461.2024.04.18
不同气象条件下北京市植被区与非植被区PM2.5与臭氧(O3)的质量浓度及其相关性研究
The Concentration and Correlation of PM2.5 and O3 in Vegetation and Non-vegetation Areas of Beijing Under Different Meteorological Conditions
摘要
Abstract
This study utilized PM2.5 and O3 concentration data and meteorological data from monitoring points in both vegetation and non-vegetation areas of Beijing in 2022 to reveal the impact of meteorological factors on the correlation between PM2.5 and O3.The results showed that meteorological factors affected the correlation between PM2.5 and O3 in the study areas.In the whole year and different seasons,tempera-ture had the strongest impact on PM2.5-O3 correlation coefficient.Under meteorological conditions,i.e.,all temperature ranges,humidity lower than 55％,and atmospheric pressure lower than 985 hPa,the correla-tion between PM2.5-O3 was higher in vegetation areas than in non-vegetation areas;when the temperature was lower than 0 ℃ or the humidity was higher than 75％,the most significant and negative correlation be-tween PM2.5 and O3 was observed;the correlation was the most significant and positive when the tempera-ture was higher than 20 ℃ or the humidity was lower than 35％.When the atmosphere pressure ranged from 955 to 985 hPa,the concentration of PM2.5 and O3 was positively correlated,and the concentration be-low or above this range,the correlation was negative,the positive correlation was the strongest in the 955-970 hPa pressure range,and the negative correlation was the strongest when the atoms pressure was higher than 985 hPa.Meteorological conditions of high temperature and humidity have positive effects on PM2.5 and O3 concentrations;low temperature and low humidity meteorological conditions have negative effects on both.关键词
城市森林/PM2.5/臭氧/气象因子Key words
urban forest/PM2.5/ozone/meteorological factor分类
农业科技引用本文复制引用
李少宁,时聪,杨君芳,赵娜,徐晓天,鲁绍伟..不同气象条件下北京市植被区与非植被区PM2.5与臭氧(O3)的质量浓度及其相关性研究[J].西北林学院学报,2024,39(4):147-153,169,8.基金项目
国家自然科学基金面上项目(32071834)北京市农林科学院科技创新能力建设项目(KJCX20240701)、(KJCX20230306). （32071834）
