摘要
利用红外光谱和扫描电镜对93#和97#汽油燃烧产物、不同地段的土壤颗粒做了详细的表征。结果表明,97#汽油的燃烧产物含有的有害物质要明显少于93#汽油的燃烧产物;客运站表层土壤颗粒粒径明显小于新鲜土壤;汽油燃烧产物和新鲜土壤混合产物的成分与客运站表层土壤成分接近,说明土壤与汽油的燃烧产物发生了某种相互作用。在离客运站2 km以外测定的浮土成分与客运站表层的土壤成分相同,说明土壤类PM2.5颗粒可以随空气流动。
Infrared spectroscopy and scanning electron microscopy were used to characterize combustion products of petrol and different soils. The result showed that combustion product of 97 # gasoline contained less hazardous substances than that of 93 # gasoline; particle size of the top soil of a bus station was smaller than that of fresh soil; and the mixture of combustion product of gasoline and fresh soil was similar in composition with the top soil of the bus station,implying that there may be some reactions taking place between the soil and combustion product of gasoline. Interestingly,the component of dust of the school windowsill,far from the bus station,was very close to that of the top soil particles of the bus station,which strongly proved that those PM2. 5 shaped particles may flow with the air movement.
出处
《环保科技》
2014年第5期6-10,共5页
Environmental Protection and Technology
