植物墙对PM2.5的影响研究

Influence of Plant Wall on PM2.5

为了解植物墙对PM2.5的影响,通过激光测量仪进行了室内外测定。结果表明,当垂直距离固定时,随着测量地点水平距离的增加,植物墙对PM2.5的影响越来越小,当水平距离超过3m后,植物墙对PM2.5影响不显著。室内植物墙与非植物墙相比,植物墙可以显著降低PM2.5浓度,随着水平距离的增加及测量时间的推后,植物墙对PM2.5的影响逐渐降低。室外植物墙对PM2.5影响较小,基本上水平距离在0.5m以内对PM2.5有影响,水平距离超过了1m对PM2.5的影响基本消失。

In order to understand the effect of plant wall on PM2.5,indoor and outdoor measurements were carried out by laser measuring instrument.Result shows that when the vertical distance is fixed,the effect of plant wall on PM2.5 became smaller with the increase of the horizontal distance at the measurement site.When the horizontal distance is more than 3 m,the effect of plant wall on PM2.5 is insignificant.Plant wall Compared with non-plant wall,plant wall can significantly reduce the concentration of PM2.5,as the horizontal distance increases and the measurement time is pushed back,plant wall PM2.5 gradually reduced.The effect of outdoor plant wall on PM2.5 is small,and the effect of PM2.5 is basically affected when the horizontal distance is less than 0.5 m.The effect of PM2.5 on the horizontal distance is almost no more than 1 m.