辽宁中部城市群大气污染分布及与气象因子的相关分析

Air Pollutant Distribution over Urban Areas of Central Liaoning Province and Its Correlation with Meteorological Factors

根据2002年辽宁省中部城市群(沈阳、鞍山、本溪、抚顺、辽阳)的主要大气污染物(TSP、PM10、SO2、NOx)的监测值及气象因子(能见度、风速、温度、湿度、降水、总云量和低云量)的观测资料,分析了辽宁中部城市群大气污染的现状、污染程度及污染物与气象因子的相关关系。结果表明:城市群的主要大气污染物是TSP、PM10和SO2;冬季是城市群大气污染最重的季节,夏季大气污染最轻;城市群大气污染最重的城市是本溪,其次是鞍山、沈阳、抚顺、辽阳;污染物与能见度、温度的相关性非常显著,平原城市的污染物与气象因子的相关性较山区城市好。

Based on the data of mean air pollutant concentrations （TSP, PM10, SO2, NO2） and meteorological factors （visibility, wind speed, temperature, humidity, precipitation, total cloud cover and lower cloud cover） in 2002 over the urban areas of the central Liaoning Province, an analysis was made of the status and extent of pollution in theses areas and the correlation of pollutants and various meteorological factors. The results show： the predominant air pollutants are TSP and SO2; air pollution is the most serious in winter, the most slight in summer. The air pollution is the most serious in Benxi, the second in Anshan, the third in Shenyang, then in Fushun, and the least in Liaoyang. The correlation of pollutants with and the correlation of pollutants with various meteorological factors is be ous cities. visibil tter ity and temperature is very good, plain cities than that in mountainous cities.