摘要
为降低汽车排放因子CO对人类生存环境的影响,研制汽车排放污染物CO因子试验系统,测试分析夏季植物生长对环境中汽车排放因子CO浓度分布的影响。研究结果表明,在环境温度为25℃,6m·s-1的入口风速下,树高为2.4m,树冠直径为1.4m的樟树,背风侧CO的最大浓度值相对于无树木环境的浓度值增高16.1%,迎风侧CO的最大浓度值相对于无树木环境的浓度值增高4.1%,树木对汽车排放污染物CO因子扩散有阻滞作用;结合植物对汽车排放污染物的净化效能,来实现大气的植物修复是可行的。
In order to reduce the harm of automotive CO emission to human survival environment, the monitoring system of automotive CO emission was designed to test and analyze the effect of plants on distribution characteristics of automotive CO emission in summer. When the environmental temperature is 25℃, entrance wind speed is 6 m·s^-1, the trees for test are 2.4 m high and their crown diameter are 1.4 m, the result shows that plants have retardation influence on dispersion of automotive CO emission.The maximum concentration value of CO in the leeward is 16.1% higher than that in non-trees environment, and that the maximum concentration value of CO in the windward is 4.1% higher than that in non-trees environment. The method using the purgative function of plants to automotive emission is feasible.
出处
《公路交通科技》
CAS
CSCD
北大核心
2008年第4期155-158,共4页
Journal of Highway and Transportation Research and Development
基金
黑龙江省科技攻关资助项目(GC05C210)
关键词
环境工程
汽车排放
分布规律
植物修复
environmental engineering
automotive emission
distribution characteristic
phytoremediation
