摘要
PM_(2.5)和PM_(10)目前已经成为我国大部分城市空气质量的首要污染物。为了解庆阳市大气颗粒物污染状况,本文通过分析庆阳市2016年1月至2017年8月的空气PM_(2.5)和PM_(10)质量浓度的监测数据,探讨了颗粒物污染的变化规律,对PM_(2.5)/PM_(10)比值进行了分析。结果表明:颗粒物浓度季节性变化明显和日际变化呈双峰形态;PM_(2.5)/PM_(10)比值显示,沙尘初期以粗颗粒物污染为主,而重污染天气则以细颗粒物为主。
PM2.5 and PM10 have become the primary pollutant in most of the cities. In order to understand the pollution of atmospheric particulates in Qingyang city, PM2.5and PM10 mass concentrations from January, 2016 to August, 2017 in Qingyang were analyzed. The change law of atmospheric particulate pollution was discussed and the ration between the PM2.5/PM10 was analyzed. The results showed that the particulate matter concentration exhibited an apparent seasonality and the diurnal variation appeared two peaks during a day. The ration PM2.5/PM10showed that PM10 was the main particle pollution in the beginning of the dust, but PM2.5 was the main particle pollution in the heavy polluted weather.
作者
乔妮
QIAO Ni(Qingyang Environmental Monitoring Station, Qingyang 745000, Gans)
出处
《陇东学院学报》
2018年第1期87-90,共4页
Journal of Longdong University
