HE Min,YANG Hao,WANG Zhiwei,et al.Research on Air Pollutant Emission Inventory and its Spatio-Temporal Characteristics in The Ganzi Prefecture[J].Journal of Chengdu University of Information Technology,2025,40(04):556-562.[doi:10.16836/j.cnki.jcuit.2025.04.022]
甘孜州大气污染源排放清单及其时空分布特征研究
- Title:
- Research on Air Pollutant Emission Inventory and its Spatio-Temporal Characteristics in The Ganzi Prefecture
- 文章编号:
- 2096-1618(2025)04-0556-07
- Keywords:
- Ganzi Prefecture; air pollution; emission inventory; temporal variation; spatial distribution
- 分类号:
- X511
- 文献标志码:
- A
- 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SO2、NOX、CO、PM10、PM2.5、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。SO2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,NOX、CO、PM10、PM2.5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; SO2和NH3排放在空间上较分散。在时间分布上,SO2、NOX、CO及VOCs月变化相对较平缓; PM10和PM2.5冬、春季节排放相对较高; NH3夏季的排放显著高于其他季节。
- Abstract:
- Based on the activity level data collected using the bottom-up and top-down methods,a 2021-based air pollutant 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 SO2,NOx,CO,PM10,PM2.5,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 contributor to SO2 emissions,while the mobile sources contributed the most to NOx emissions.In addition,the CO emissions were mainly from industry sources and mobile sources,thePM10 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 NH3 emissions mainly came from agricultural sources.The results of spatial distribution indicated that NOx,CO,PM10,PM2.5,and VOC emissions were mainly distributed in the cities or counties of Kangding,Luding and Danba which with dense road networks,while SO2 and NH3 emissions were relatively more dispersed.The monthly variation of SO2,NOx,CO,and VOCs emissions were relatively smooth.The PM10 and PM2.5 emissions were relatively higher in winter and spring than other seasons,while the NH3 emissions in summer were significantly higher than that in other seasons.
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备注/Memo
收稿日期:2023-11-21
通信作者:王志伟.E-mail:316573250@qq.com