摘要
文章利用2013—2017年呼和浩特市冬季空气污染数据及同期气象观测数据,分析空气污染特征及各类气象条件下污染日数分布特征,结果表明:近5a来呼和浩特市冬季平均空气质量指数呈下降趋势,空气污染程度有所减缓。空气质量未达标日数呈减少趋势,特别是轻度和中度污染日数下降趋势最显著;首要污染物以PM10为主;冬季风速、气温、相对湿度与空气质量指数显著相关,降水量对空气质量的影响较小;S和SSW风向时污染日数出现概率较高,易出现中到重度空气污染。
The characteristics of air pollution and the influence of meteorological conditions in winter in Huhhot were analyzed based on the air pollutant data and meteorological observation data from 2013 to 2017.The results showed that the average AQI of Hohhot in winter decreased significantly.The number of substandard air quality days showed a decreasing trend especially in light and moderate pollution days.The main pollutant in winter was PM10.The wind speed,air temperature and relative humidity had significant influence on air quality,but precipitation had less impact.AQI was easy to overproof in south and south by southwest wind,and prone to moderate and severe pollution.
作者
刘林春
Liu Linchun(Inner Mongolia Meteorological Observatory,Inner Mongolia Hohhot 010051)
出处
《内蒙古气象》
2019年第5期29-33,共5页
Meteorology Journal of Inner Mongolia
基金
内蒙古自治区气象局科研项目(nmqxkjcx201908).
关键词
空气污染
AQI
气象条件
相关分析
Air pollution
AQI
Meteorologic factor
Correlation analysis
