摘要
本文基于2016年~2020年天津市NO_2、SO_2、CO、PM_(2.5)、PM_(10)、AQI的相关数据,分析了天津市五年来空气质量现状以及大气污染物的年度、季节和月度变化特征,分析结果显示五年来天津市空气质量指数AQI优良率显著提高,污染物均呈下降趋势。从季节变化来看,PM_(2.5)、PM_(10)、SO_2、CO和NO_2都表现为"冬高夏低"。
Based on the relevant data of NO2,SO2,Co,PM2.5,PM10 and AQI in Tianjin from 2016 to 2020,this paper analyzes the current situation of air quality and the annual,seasonal and monthly variation characteristics of air pollutants in Tianjin in the past five years.The analysis results show that the excellent and good rate of AQI in Tianjin has improved significantly,and the pollutants show a downward trend.In terms of seasonal variation,PM2.5,PM10,SO2,CO and NO2 are all higher in winter and lower in summer.
作者
韩放
黄昀
Han Fang;Huang Yun(Tianjin Baodi District Public Emergency Warning Information Release Center,Tianjin 301800,China;Fujian Longyan Meteorological Bureau,Longyan 364200,China)
出处
《皮革制作与环保科技》
2021年第13期60-61,63,共3页
Leather Manufacture and Environmental Technology
关键词
空气质量
大气污染物
变化特征
air quality
atmospheric pollutant
variation characteristics
