摘要
近年来随着雾霾天气的频发和空气环境质量的不断下降,有关PM2.5的研究逐渐成为研究的重点和热点。本研究利用阿克苏市2014年PM2.5连续在线监测数据,对PM2.5的污染现状和季节变化、月变化、日变化、昼夜变化规律进行探讨和分析。结果表明,阿克苏市PM2.5质量浓度平均值春季最高,其次为冬季,夏季最低。春季沙尘天气和冬季采暖燃烧源是PM2.5质量浓度增加的主要原因;阿克苏市PM2.5质量浓度日均值为14.96-282.84μg/m^3,年平均值为77.85μg/m^3,是国家二级标准的1.04倍;阿克苏市PM2.5质量浓度春季白天高于夜间,夏季和冬季白天低于夜间。
PM2.5has gradually become the focus on research with frequent occurrence of haze weather and decline on air environmental quality in recent years. In this study,the PM2.5pollution status and seasonal variation,monthly variation,and diurnal variation were discussed and analyzed through 2014 PM2.5continuous online monitoring data of Aksu City. The results show that the average PM2.5concentration of Akesu was highest in spring and lowest in summer,the winter is between them. Dust weather in spring and heating in winter are the main reason for the increase of PM2.5concentration. The daily average PM2.5concentration range is 14. 96 - 282. 84 μg / m^3,annual average is 77. 85 μg/m^3,which 1. 04 times of the second national standard grade. The PM2.5concentration of daytime is higher than night in spring,and the situation is opposite insummer and winter.
出处
《干旱环境监测》
2016年第1期18-22,32,共6页
Arid Environmental Monitoring
