张掖市城区采暖期环境空气中污染物分布特征分析

以张掖市甘州区城区采暖期2008—2012年5年环境空气质量数据为主，对采暖期污染物变化状况及污染物分布情况进行分析。张掖市冬季采暖主要以燃煤为主，能源结构不合理、锅炉污染严重、工业企业结构不合理以及交通污染等原因，使得冬季采暖期间张掖市甘州区城区环境空气中主要污染物为二氧化硫、可吸入颗粒物、二氧化氮，采暖期间污染物浓度随时问呈正态分布特征。结合污染特点，提出调整能源结构、利用清洁能源、加大监管力度等建议，以期改善张掖市采暖期的环境空气质量。

Analysis on Distribution Characteristics of Air Pollution in Heating Period in Zhangye

Based on five years of environmental air quality data in heating period in Ganzhou dis- trict of Zhangye city from 2008 to 2012, it carried out the analysis on the change and distribution of pollutants in heating period. The winter heating of Zhangye city mainly relies on coal, the un- reasonable energy structure, serious pollution of boilers, unreasonable industrial structure and traffic pollution caused during the winter heating the main pollutants of the urban ambient air in Ganzhou district Zhangye city were sulfur dioxide, inhalable particles, nitrogen dioxide, and pollutant con- centration was normally distributed with time. Combined with the characteristics of the pollution, adjusting energy structure, using clean energy, increasing supervision proposals were put forward in order to improve the environmental air quality during the heating period in Zhangye city.