陕西榆林城区环境空气污染特征及原因分析

Air Pollution Character and Causes in Yulin Shaanxi

本文以2007-2011年榆林城区环境空气监测数据为依据,对榆林城区SO2、NO2和可吸入颗粒物污染趋势和特征按年度、季和每日不同时点进行了分析,结果表明,榆林城区环境空气质量逐年好转。SO2和PM10的季节性污染特征较明显,SO2浓度峰值主要集中在冬季采暖期,PM10浓度峰值主要集中在春季沙尘发生期,NO2浓度较稳定,环境空气污染特征与燃料结构、气候、地理、生活习惯有很大关系。

The analysis was performed on ambient air monitoring data of the CO2. NO2and PM10 in the Yulin region from 2007 to 2011,according to the annual,quarter and daily at different. The results show that,Yulin city'air quality improved year by year. SO2 and PM10seasonal pollution characteristic is obvious,the SO2peak was mainly concentrated on the winter heating period,and PM10peak mainly concentrated on the spring dust occurrence period. The NO2was more stable. There were a great relationship for environmental air pollution,fuel structure,climate,geography and living habits.