摘要
根据自下而上和自上而下相结合的方法收集的甘孜州污染源活动水平数据,采用合理的估算方法和排放因子构建2021年甘孜州大气污染源排放清单,分析污染排放的时空分布特征。结果表明:2021年甘孜州SO_(2)、NO_(X)、CO、PM_(10)、PM_(2.5)、VOCs和NH3排放量分别为1158.0 t、9220.8 t、15083.2 t、13549.8 t、3854.6 t、3486.4 t及17871.9 t。SO_(2)排放主要来自居民生活源;NOX排放主要来自移动源;CO排放主要来自工业源和移动源;PM10和PM2.5排放以扬尘源为主;VOCs主要来自移动源和溶剂使用源;NH3排放主要来源于农业源。污染排放空间分布结果显示,NO_(X)、CO、PM_(10)、PM_(2.5)及VOCs主要集中分布在路网密集的康定市、泸定县和丹巴县等地;SO_(2)和NH_(3)排放在空间上较分散。在时间分布上,SO_(2)、NO_(X)、CO及VOCs月变化相对较平缓;PM_(10)和PM_(2.5)冬、春季节排放相对较高;NH_(3)夏季的排放显著高于其他季节。
Based on the activity level data collected using the bottom-up and top-down methods,a 2021-based air pollu-tant emission inventory was developed for Ganzi prefecture with the use of appropriate emission factor and estimation methods.Besides,the temporal and spatial distribution of pollutant emissions were also characterized in this paper.The results showed that the total emissions of SO_(2)、NO_(X)、CO,PM_(10),PM_(2.5),VOCs,and NH3 were 1158.0 t,9220.8 t,15083.2 t,13549.8 t,3854.6 t,3486.4 t and 17871.9 t,respectively.The residential combustion was the largest con-tributor to SO_(2) emissions,while the mobile sources contributed the most to NOx emissions.In addition,the CO emissions were mainly from industry sources and mobile sources,the PM10 and PM2.5 emissions were mainly from fugitive dust sources,the VOCs emissions were mainly from mobile sources and organic solvent use sources,and the NH_(3) emissions mainly came from agricultural sources.The results of spatial distribution indicated that NO_(x),CO,PM_(10),PM_(2.5),and VOC emissions were mainly distributed in the cities or counties of Kangding,Luding and Danba which with dense road net-works,while SO_(2) and NH_(3) emissions were relatively more dispersed.The monthly variation of SO_(2),NO_(x),CO,and VOCs emissions were relatively smooth.The PM_(10) and PM_(2.5) emissions were relatively higher in winter and spring than other seasons,while the NH_(3) emissions in summer were significantly higher than that in other seasons.
作者
何敏
杨皓
王志伟
黄强
宋鹏程
杨争娇
刘筱谦
蒋宇超
HE Min;YANG Hao;WANG Zhiwei;HUANG Qiang;SONG Pengcheng;YANG Zhengjiao;LIU Xi-aoqian;JIANG Yuchao(College of Resourse and Environment,Chengdu University of Information Technology,Chengdu 610225,China;Sichuan Ganzi Eco-logical and Environmental Monitoring Centre,Ganzi 626000,China;Sichuan Mianyang Ecological and Environmental Monitoring Centre,Mi-anyang 621050,China)
出处
《成都信息工程大学学报》
2025年第4期556-562,共7页
Journal of Chengdu University of Information Technology
基金
甘孜州科技计划项目(21zkjjh0041)
成都信息工程大学引进人才科研启动项目(KYTZ202130)对本文的资助
关键词
甘孜州
大气污染
排放清单
时间变化
空间分布
Ganzi Prefecture
air pollution
emission inventory
temporal variation
spatial distribution
