摘要
目的分析乌鲁木齐市环境空气质量现状和污染特征,为管理部门决策及今后开展空气污染健康危害研究提供参考。方法收集乌鲁木齐市主要污染物监测数据,应用Spss 18.0软件进行统计分析,采用统计特征描述和Daniel趋势检验方法进行数据分析。结果近几年乌鲁木齐市空气质量达标天数逐年增长,重污染天数减少,SO2、PM10年均浓度仍然超标但整体出现下降。采暖期属于煤烟型污染,污染物浓度普遍超标。非采暖期受PM10和NO2影响呈现复合污染特征,污染物浓度达标。结论乌鲁木齐市环境空气质量总体趋于稳定,主要空气污染物浓度变化季节趋势明显,应强化环境综合整治,重点治理冬季大气污染。
Objectives To analyze the air quality status and the characteristics of air pollution in the city of Urumqi, so as to provide references for decision-making and for further researches about the effect of air pollution on human health. Methods Monitored data of main air pollutants in Urumqi were analyzed statistically by the method of Daniel trend test using the software of SPSS 18.0. Results In more and more days in recent years, the air quality in Urumqi has reached the national Grade II standard and the number of days that undergone heavy air pollution has deceased. The annual average concentration of PM10and SO2 has decreased as a whole, although the air quality was still exceeding the national standard. The characteristics of air pollution in heating seasons were in a coal smoke pollution type, and main air pollutants were all higher than the air quality standards. The air pollutants in the non-heating season were more influenced by PM10and NO2 , but the degree of air quality was higher than the national Grade II standard. Conclusions The air quality keeps stable as a whole in Urumqi, and the main pollutants present a trend of seasonal variation. Enhancing a comprehensive environmental management of air pollutions, especially in the winter season is proposed.
出处
《环境卫生学杂志》
北大核心
2012年第3期120-125,共6页
JOURNAL OF ENVIRONMENTAL HYGIENE
关键词
乌鲁木齐
空气质量
分析
Urumqi, air environment, analysis
