2005年承德城市环境空气质量分析与评价

Analysis and Evaluation of City Ambient Air Quality in Chengde in 2005

从污染类型、综合污染指数、级别天数、首要污染物天数、月变化、采暖期和非采暖期变化、污染物空间分布几个方面对城市环境空气质量进行了分析和评价;并从气象、能源结构等方面对污染成因进行了分析。结果表明2005年承德城市环境空气质量类型为典型的“煤烟型”。

The city ambient air quality is analyzed and evaluated from the following aspects：the comtamination type, synthesis contamination index,class number of days,key pollutant number of days, monthly change, changes in heating period and non-heating period, and spatial distribution of pollutants. What＇s more, the cause of the contamination is discussed in terms of weather and the structure of energy source. The results indicate that the air quality in Chengde in the year of 2005 suggests the typical type of Coal Smoke.