中文摘要：

针对2007年5月～2008年3月乌鲁木齐市PM10（吸入颗粒物）冬、春季节的大气污染情况，应用乌鲁木齐市三个监测点的空气污染PM10监测资料，采用PM10国家《空气质量标准（GB3095—1996）》重量法数据处理方法，对乌鲁木齐市不同区域的空气污染PM10进行监测分析，结果表明：（1）在采暖期PM10浓度变化为天山区〈沙依巴克区（以下简称沙区）〈新市区，而在非采暖期天山区PM10浓度略高于新市区和沙区，三个采样点PM10浓度基本一致；（2）影响PM10的主要气象因素是降水，夏季降水对PM10粒子浓度清除影响较大，冬季微量降雪日，逆温、高湿对污染物聚集的加剧高于微雪的清除能力；（3）2001—2007年乌鲁木齐地区API（空气污染指数）趋于下降趋势，与PM10变化趋势一致，说明乌鲁木齐地区的环境污染有所改善。

英文摘要：

Urumqi city is one of the inland cities of China with serious air pollution related with both sand storms and smog dusts originated from the burning coal in the heating period of winter and spring. On the basis of monitored data obtained from three sampling points in Urumqi city during the period from May of 2007 to March of 2008, this paper researched on air pollution of the city in winter and spring, which deals with pollution particles, their concentration, temporal and spatial variation, and the relationship between pollution and synoptic conditions. Results show as follows ： （ 1 ） the pollution level in the heating period is higher than that in the non-heating period ; （2） the ranking of the PM10 concentration at three monitoring points is in the order of Tianshan District （ monitoring point located at Urumqi Institute of Desert Meteorology） 〈 Sayibake District （monitoring point located at Xinjiang Medical University） 〈 Xinshiqu District （monitoring point located at Urumqi Meteorological Satellite Ground Station） in the heating period; （3） PM10 concentration at three monitoring points is almost the same in the non-heating period;（4） there are a negative relation between PM10 concentration and air temperature and a positive relation between PM10 concentration and air humidity.