摘要
基于陕西省10个地级市2016年PM2. 5浓度数据,分析雾霾污染的时空分布特征,计算雾霾污染与气象及社会经济因素不同指标间的相关性。结果表明:陕西省雾霾污染时空分布差异较大,随季节变化特征明显,冬季污染最严重且范围最广,春秋季次之,夏季最小;关中地区雾霾污染最严重,并且逐渐向南北两边扩散;雾霾污染时空分布与气象因素紧密相关,温度、风力与雾霾污染呈负相关,湿度对其影响较小。社会经济因素中,工业企业生产和能源结构、污染物的直接排放都是影响雾霾污染的重要因素。
Based on the statistical data of PM2. 5 concentration in 10 prefecture-level cities in Shaanxi Province in 2016,the temporal and spatial distribution characteristics of haze pollution were analyzed,and the correlation of different indicators between haze pollution and meteorological and socio-economic factors was calculated. The results showed that: the spatial and temporal distribution of haze pollution in Shaanxi Province was quite different,with obvious seasonal changes,appearing the most serious and widespread in winter,followed by spring and autumn,and the least in summer; the haze pollution in Guanzhong area was the most serious,and gradually spread to the north and south; the temporal and spatial distribution of haze pollution was closely related to meteorological factors,and there was a negative correlation between temperature,wind and haze pollution,but humidity had little effect on it. The production and energy structure of industrial enterprises and the direct discharge of pollutants in social and economic factors were all important factors affecting haze pollution.
引文
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