初夏时期园林绿地温湿度与细颗粒物(PM2.5)浓度的关系研究——以北京市玉渊潭公园为例

STUDY ON THE RELATIONSHIP BETWEEN TEMPERATURE AND HUMIDITY OF GREEN SPACE AND FINE PARTICULAR MATTERS(PM2.5) IN EARLY SUMMER:THE CASE OF BEIJING YUYUANTAN PARK

本文以北京市玉渊潭公园的3个监测站点为依托,在2017年6月连续采集14天的温度、湿度与细颗粒物(PM2.5)浓度数据,分析其变化情况及其中的相关性。通过对监测站点数据的分析,并与公园内气象数据进行多元回归和两两相关分析,发现PM2.5浓度与温度、湿度在监测周期波动变化和日变化的规律性特征,且多种因素与PM2.5浓度之间存在着相关性;在对比处于不同环境的监测站点的数据后发现,不同的环境因素对PM2.5浓度与温度、湿度均有显著影响。

Forteen consecutive days of collection of temperature, humidity and concentration of fine particular matters(PM2.5) in June 2017 from three monitoring sites in Beijing Yuyuantan Park, this paper analyzed the changing trends of the three elements and the correlation between them. After analyzing the monitored data and performing multiple regression and pairwise correlation analysis with the meteorological data in the park, it could be found that the change of temperature, humidity and concentration of fine particular matters during the monitoring period and the change of daily average data has regular features and there is a significant correlation between concentration of fine particular matters and most variables of meteorological data;after comparing the data from the 3 monitoring sites, it was found that the different environmental elements have significant effects on temperature, humidity and concentration of fine particular matters.