德阳市大气环境污染特征分析

Analysis of atmospheric environmental pollution in deyang city

利用城区4个大气监测点的监测数据,按照《环境空气质量标准》(GB3095-2012)对德阳城区的空气质量进行评价,德阳市的主要污染特征为颗粒物和臭氧交替污染,夏季臭氧污染较为突出,冬季PM_(2.5)污染较为突出。对比近三年的总体变化特征,颗粒物污染的突出性略有下降,臭氧污染的突出性略有上升。PM_(2.5)/PM_(10)的比值范围在0.26-0.82之间,比值范围较宽,颗粒物来源包括北方沙尘南下和自身工业生产排放等多种因素。

Using the monitoring data of 4 urban air monitoring points, in accordance with the ＂ambient air quality standards＂ （GB3095-2012） was used to evaluate the air quality of Deyang City, the main pollution characteristics of Deyang City, the pollution of paniculate matter and ozone alternately, summer ozone pollution is more prominent, more prominent PM_2.5 pollution in winter. Compared with the general characteristics of the change in the past three years, the prominence of paniculate pollution has decreased slightly, and the prominence of ozone pollution has increased slightly. The ratio range of PM_2.5/PM_10 is between 0.26-0.82, and the range of the ratio is wide. The sources of particulate matter include many factors, such as the northern dust and the discharge of industrial production.