摘要
Abstract
In order to understand the characteristics of regional air pollutant emissions,a systematic analysis of anthropogenic air pollutant emissions data in Linyi city in 2023 is conducted.The bottom-up approach is adopted to compile emission inventories,and study distribution characteristics from a spatiotemporal perspective.The results indicate that industrial process sources and fossil fuel combustion are important sources of pollutants.Among them,industrial process sources contribute the largest share of inhalable particulate matter(PM10),fine particulate matter(PM2.5),and Volatile Organic Compounds(VOCs)emissions,with emissions of 2.731 5 million,1.938 6 million,and 1.168 3 million tons,respectively;fossil fuel combustion accounts for the dominant emissions of SO2 and nitrogen oxides(NOx),with emissions of 0.783 2 million and 1.298 7 million tons,respectively.The emissions of pollutants show significant seasonal changes,with SO2 and NOx reaching 1.37 times the annual average level in winter and decreasing to 0.85 times the annual average level in summer;there are obvious regional agglomeration characteristics in spatial distribution,with high emission areas mainly concentrated in heavy industrial cities and coastal areas.The research results provide scientific basis for the development of differentiated air pollution prevention and control strategies in Linyi city,which will help improve regional air quality.关键词
大气污染物/人为源/排放清单/时空分布特征/临沂市Key words
air pollutants/anthropogenic source/emission inventory/spatiotemporal distribution characteristics/Linyi city分类
资源环境
