论文部分内容阅读
苯系物和挥发性卤代烃是常见的空气污染物,其分布广泛、种类繁多,是形成光化学烟雾的重要前体物。为了解贵阳市大气苯系物和挥发性卤代烃分布特征,根据金阳新区与白云区的面积、形状及不同功能区划,为避免高大建筑物干扰,于2012年8月上旬选择天气多云或晴天的连续5 d(气温20~30℃,微风),选取地势较高、周围较空旷地区6个采样点[学校(A)、道路(B)、工厂(C)、公园(D)、酒店(E)、医院(F)]进行空气采样。为保证数据的可比性,6个采样点海拔高度近似一致。同时为避免较多的人为干扰并结合实际情况,选择在工作日非人流高
BTEXs and volatile halohydrocarbons are common air pollutants. They are widely distributed and diverse and are important precursors to the formation of photochemical smog. In order to understand the distribution characteristics of atmospheric benzene and volatile halogenated hydrocarbons in Guiyang City, according to the area, shape and different functional zoning of Jinyang New Area and Baiyun District, in order to avoid the interference of tall buildings, the weather was cloudy or The sunny days of 5 consecutive days (temperature 20 ~ 30 ℃, breeze), select the higher terrain, the surrounding open area 6 sampling points [school (A), road (B), factory (C), park (E), hospital (F)] for air sampling. To ensure the comparability of data, the altitude of the six sampling points is approximately the same. At the same time, in order to avoid more human interference and combine the actual situation,