文档介绍：本溪市颗粒污染物特征分析及其与气象因素的关系
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摘 要：通过研究2019年本溪市颗粒污染物特征及其与气象因素的相关性，结果表明，本溪市颗粒污染物浓度冬季最高，夏季最低，1月份最高，8月份最低;颗粒污染物超标主要集中在采暖期。，颗粒物之间存在较强的内在联系。不同气象条件下颗粒污染物有所差别，与气温呈显著负相关，与湿度呈正相关;风速对颗粒污染物影响主要是稀释作用。颗粒污染物浓度随着气温变化出现2个峰值，分别在-5℃和13℃;气温在5～15℃相关性最高，且随着气温升高，浓度增加趋势更加突出;颗粒污染物随相对湿度增加而增大，且在55%～80%易发生较重污染，受相对湿度影响更为显著;颗粒污染物與风速呈负相关，～，污染物浓度较高。
关键词：本溪市;颗粒污染物;气象因素;特征分析;相关性
中图分类号 X513;X16 文献标识码 A 文章编号 1007-7731（2020）17-0161-03
Characteristics of Air Particulate Matter in Benxi City and Their Relationship with Meteorological Conditions
LIU Chuang1 et al.
（1Benxi City of Meteorology， Benxi 117000， China）
Abstract： According to air particulate pollutants in Benxi in 2019 and their correlation with meteorological factors. The results show that the concentration of particulate pollutants in Benxi is the highest in winter， the lowest in summer， the highest in January， and the lowest in August; the excessive concentration of particulate pollutants is mainly concentrated in the heating period. The correlation coefficient between particulate pollutants is ， and there is a strong internal relationship between particulate matter. It is different from different meteorological conditions， and has a significant negative correlation with air temperature; a positive correlation with humidity; and the effect of wind speed on particulate pollutants is mainly dilution. There are two peak values of particulate pollutant concentration with temperature changes， which are -5℃ and 13℃， and the correlation between air temperature is 5～15℃， and as the temperature increases， the concentration increase trend is more prominent; with the relative humidity Increased and increased， and heavier pollution is easy to occur between 55～80， and particulate pollutants are more significantly affected by relative humidity; negati