北方重点城市重污染条件下可吸入颗粒污染物（PM10）浓度与气象条件关系分析

In this paper, analysed the data of PM10 concentration in the key northern cities of China from 2000 to 2010, obtained that PM10 as the primary pollutant of atmosphere pollution occured mainly in spring and winter. The strong cold air, convective weather, drought, no rain, and west or north winds were conducive to air pollution in the spring, in winter, low speed, high humidity, warm winter, the stable weather system were beneficial to the formation of pollution weather. At the same time, 500 hpa isobaric weather situation combined with ground meteorological factors were analyzed comprehensively, found that the weather situation of 'the west high and east low ' was easy to cause air pollution in spring, in winter, the weather system of in the spinal anterior groove, ridge, weak high pressure with high humidity, no precipitation and low wind speed which easily lead to serious air pollution because of PM10 accumulation.