摘要
采用CALPUFF空气质量模型,对2013年哈尔滨市1月和7月SO2质量浓度进行模拟,表征哈尔滨市采暖期和非采暖期的SO2质量浓度分布特征.SO2质量浓度监测值与模拟值的对比分析表明,二者变化趋势基本一致,且经统计分析可知：二者的相关系数可达到0.7,说明模型基本可以反映出模拟区域内气象条件的影响.SO2模拟结果表明：哈尔滨市采暖期SO2平均质量浓度高于非采暖期,大约是非采暖期的8～9倍,主要是由于采暖期燃煤量增加,排放出大量的SO2;气象条件不利,排放的污染物难以扩散;外来源输送与本地源叠加,加重了污染.采暖期市区质量浓度是其他区县质量浓度的3～4倍,而非采暖期各区县质量浓度相差不大.此外,污染物扩散方向与风向一致,且质量浓度分布受到地形的影响.
Using the CALPUFF air quality model simulates SOE concentration in Harbin in January and July 2013 to showed SO2 concentration during heating and non - heating period in Harbin. By comparing the simulated values with the observed values, it showed that the two change trends were consistent basically and the correlation coefficient was about 0.7, which showed that the model could basically reflect the effects of simulated regional meteorological conditions. SO2 concentration simulated results showed that the average concentration of SO2 in heating period was higher than non - heating period in Harbin, which was about 8 -9 times of the non - heating period. It mainly due to the increase of coal consumption in heating period and discharge large amounts of SO2 emissions. Due to the adverse weather con- ditions, the emission of pollutants is difficult to spread. External source transportation and the local source superposition increase the pollution. The urban SO2 concentration was 3 -4 times of other districts concentrations in heating period, but all districts concentrations have little difference in non -heating period. In addition, pollutant diffusion direction was con- sistent with the direction, and the pollutant concentration was affected by the terrain.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2016年第3期341-346,共6页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
哈尔滨市科技攻关项目(2013AA4AS045)
