摘要
分析了庆阳市2015年供暖期及2016年春节期间空气质量变化特征及影响因素.结果表明:供暖期空气质量总体较好,但轻度、中度和重度污染占年度内同等级天数的48.3%、66.7%和50%,供暖期空气质量与全年度相比较差,期间首要污染物依次为SO_2、PM_(10)和PM_(2.5);春节期间PM_(2.5)、PM_(10)、SO_2日均浓度值均高于WHO空气质量基准值;经济增长因素、冬季燃煤采暖和低温、干燥的天气状况等均对供暖期内空气质量造成影响.
This paper analyzes characteristics of air quality change and its influencing factors during the heating period of2015 and the Spring Festival of 2016. Results show that the overall air quality is satisfactory in the heating period. However,days of mild,moderate and severe pollution accounts for 48. 3%,66. 7% and 50% of the same level days in the year,and the air quality during the heating period is worse than other days. The main pollutants are SO2,PM10 and PM2.5 during the heating season. Daily average concentrations of PM2.5,PM10,SO2 are all higher than WHO air quality reference values. Economic growth,winter coal heating,low temperature and dry weather all have influence on air quality during heating period.
出处
《宁夏师范学院学报》
2018年第1期60-65,共6页
Journal of Ningxia Normal University
基金
国家自然科学基金(31460090)
甘肃省高等学校科研项目(2016B-101)
陇东学院青年科技创新项目(XYSK1601)
关键词
空气质量
供暖期
影响因素
庆阳市
Air quality
Heating period
Influencing factors
Qingyang city
