乌鲁木齐市PM_(2.5)前体物削减方案研究  

Study on the Reduction Plan of PM_(2.5) Precursor in Urumqi

作　　者：司冰青 韩燕[1] 吕爱华 张克谭 张裕芬[1] 冯银厂[1] 

机构地区：[1]南开大学环境科学与工程学院国家环境保护城市空气颗粒物污染防治重点实验室,天津300071 [2]乌鲁木齐市环境监测中心站,新疆乌鲁木齐830000

出　　处：《南开大学学报（自然科学版）》2013年第6期27-31,47,共6页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：乌鲁木齐市环境容量核算及大气污染防治方案(40125089)

摘　　要：乌鲁木齐市PM2.5污染程度较高,源解析结果表明,二次硫酸盐和硝酸盐所占比例达38%,因此控制其前体物SO2和NOx排放量是进一步控制乌鲁木齐市PM2.5污染的关键.基于乌鲁木齐市污染物季节排放特征,制定了适用于乌鲁木齐市经济技术可行的削减方案.经过计算,为满足乌鲁木齐市采暖季和非采暖季空气质量达标,乌鲁木齐市SO2年允许排放量为8.8×104 t,削减5.4×104 t,其中,采暖季削减3.9×104 t,非采暖季削减1.5×104 t;NOx年允许排放量为8.5×104 t,削减3.4×104 t,其中采暖季削减1.5×104 t,非采暖季削减1.9×104 t.削减后,非采暖季SO2和NOx模拟浓度值均达到控制标准,采暖季SO2达到控制标准,但NOx未达标,应加大对乌鲁木齐市机动车排放的控制.The pollution caused by PM2.5 in Urumqi was very serious,the source identification result showed that the percentage of second sulfate and nitrate reached 38%.To control the precursor（SO2 and NOx）emissions was the key to further control the PM2.5 pollution in Urumqi.Based on the seasonal pollutant emission characteristics in Urumqi,economic and technologic feasible reduction plan was established.In order to satisfy the air quality standard in heating season and non-heating season,the allowable emission of SO2 was 8.8×104 t,the reduction amount was 5.4×104 t.The allowable emission of NOx was 8.5×104 t,the reduction amount was 3.4×104 t.After the reduction plan was implemented,the simulated concentrations of SO2 reach the seasonal air quality standards,but the simulated concentration of NOx in heating season didn’t reach the standard,so controlling vehicle emissions was essential for Urumqi.

关 键 词：乌鲁木齐 PM2 5前体物 SO2 NOx 削减方案 

分 类 号：X51[环境科学与工程—环境工程]