成都市某工地施工扬尘排放特征研究

摘要

指出了雾霾天气频发预示着颗粒物已经成为城市空气污染的首要污染物,而建筑施工活动引起的扬尘是其重要来源.为了定量研究成都市的施工扬尘排放,选取了成都市一处具有代表性的处于深基坑阶段的建筑工地,制定了相应的的监测方案,开展了连续21 d的扬尘在线监测,利用所得数据分别分析了一天中施工扬尘的的浓度变化规律,以及总悬浮颗粒物(TSP)、PM10和PM2.5两两之间的相关性.%The frequent occurrence of fog and haze indicates that atmospheric particulate matter has become a primary pollutant in the city, and dust caused by construction activity is an important source.In order to quantitatively study the local construction dust emissions in Chengdu, the experiment selected a representative construction site in Chengdu, which was in deep pit stage and developed appropriate monitoring programs.It carried out 21-day dust on-line monitoring.We analyzed the variation of the concentration of construction dust, as well as the relationships among total suspended particles (TSP), PM10 and PM2.5.