【摘要】 目的　确定上兰地区空气中尘污染的主要来源 ,便于针对性治理 .方法　在采暖与非采暖期 ,定量监测该地各主要功能区空气中颗粒物质量 .结果　测得各监测点降尘与扬尘量及组成比例 ,找出尘污染与湿度、温度、风向及周边环境的关系 .结论　该地区尘污染主要由于地面扬尘及煤烟尘引起的更多还原

【Abstract】 Aim To determine the main source of dust pollution in the air in Shang Lan Area, to tackle the problem directly. Methods The particulate mass concentration in the air of all main functional areas during heating and unheating periods is meas the ured. Results The quantity of falling dust and raising dust and their component proportion in monitor point and the relationships between dust pollution and ambience humidity, temperature, wind derction and surroundings are determined. Conclusion The dust pollution is chiefly caused by soot and raising dust from the ground.更多还原