宣化城区大气TSP浓度分布预测及控制措施

DISTRIBUTION FORECAST AND CONTROL MEASURES OF AIR TSP CONCENTRATION IN URBAN AREA OF XUANHUA

根据宣化区燃料消耗量和TSP直接排放量 ,统计出全区TSP排放总量。在明确了排放源参数和气象参数的前提下 ,利用ISCST3模型模拟预测TSP浓度空间分布。各受体点的TSP夏季平均浓度值有 2 0 6%超二级标准 ,冬季平均浓度值有 3 4 9%超二级标准。烈士陵园的污染状况明显好于区政府 ,而区政府则明显好于焦化厂 ,焦化厂的全年TSP月平均浓度均超二级标准。通过对TSP污染原因进行分析 。

According to the fuel consumption and direct TSP emission amount,this paper calculates total TSP emission amount in urban area of Xuanhua.Under the condition that emission source parameters and local meteorological condition data have been determined,ISCST3 model is used to simulate and forcast the spatial distribution of TSP concentrations.Thus the conclusions are drawn that in summer more than 20.6% receptors have an average monthly TSP cocnentration of over grade-2 ambinet air quality standard,and in winter more than 34.9% receptors have an average monthly concentration of over grade-2 ambinet air quality standard.The air quality at Martyr Cemetery receptor is better than that at District Government receptor,and the air quality at District Government receptor is better than that at Coking Plant receptor.And the Coking Plant receptor has an average monthly TSP concentration of over grade-2 ambient air quality standard in the whole year.It analyzes the reason of TSP pollution,and brings forward some control measures.