空气PM_(10)污染特征及绿化结构净化效应研究——以河南农业大学为例

Research on Characteristics of PM10 Pollution and Effects of Purification PM10 Pollution in Various Afforestation Modles——Case Studies in Henan Agricultural University

以PM10污染为研究对象,采用激光粉尘仪对河南农业大学校园内PM10特征进行了分析,探讨了PM10的日变化规律及随高度、绿化状况和天气的变化状况,并用统计分析的方法对数据进行处理,结果表明:1)PM10浓度日变化特征为白天浓度高,夜间浓度低;2)多云、晴朗天气PM10浓度相对较低,阴天时PM10浓度出现峰值,雨天PM10浓度显著下降;3)在一定高度范围内,PM10浓度随着高度增加逐渐增大,越往高空PM10浓度越大;4)丛生灌木结构的PM10浓度明显高于乔木结构.

Taking PM10 pollution as research,the PM10 characteristic was studied using laser dust instrument in Henan Agricultural University campus in this paper. The change of PM10 concentration along height, forestation and weather condition have been discussed, and monitoring data of PM10 was dealed with using the method of statistical analysis, the results show as a follow： 1）The change feature of PM10 concentration in daytime is high, at night is low; 2）PM10 concentration is relative lower in cloudy,sunny weather condition. And reached the peak value in cloudy, and PM10 concentration drops apparently in rainy day; 3）PM10 concentration increases gradually along with high in certain altitude, and has the more concentration with upper air; 4）PM10 concentration in thickly bush communities is obviously higher than arbor communities.