摘要
利用均匀分布于烟台市区的10个空气自动监测点位2013年的数据研究了PM10和PM2.5浓度的季节性变化特征。对PM10、PM2.5质量浓度分别进行了月均值和季节性均值变化特征分析,研究了不同季节和雾霾天气情况下,PM2.5在PM10中含量的变化情况。结果表明:烟台市区细颗粒物污染较严重,各采样点各月均值中超过二级标准的比例达到88.3%;2013年烟台市区PM10、PM2.5质量浓度均呈现出春冬季节较高、夏秋季节较低、采暖季明显高于非采暖季,PM10浓度风沙季明显高于其他季节的特点;PM2.5对PM10的贡献呈现明显的季节性变化规律,在雾霾天气情况下明显偏高。
Based on the data of 10 air monitoring points distributed in Yantai city in 2013,the seasonal variation characteristics of PM10 and PM2. 5concentrations are researched. Respectively,it has analyzed the month value and the seasonal average of PM10 and PM2. 5concentrations and the changes of PM2. 5density in PM10 in different seasons and hazy days. It turned out that,the fine particle pollution in the district of Yantai city are more serious,the months average at each sampling point above secondary standard has reached 88. 3%; It present that in spring and winter the density of PM10 and PM2. 5in Yantai in 2013 is higher than the one in summer and fall,and it is significantly higher in the heating season than the non- heating season,and the characteristics of PM10 concentration in sandstorm season is significantly higher than other seasons; PM2. 5/ PM10 presents obvious seasonal variation law,and it is on the high side under the hazy days.
出处
《环境科学与管理》
CAS
2015年第1期150-152,共3页
Environmental Science and Management
