喷雾装置对环境中可吸入颗粒物的影响

Effect of spray devices on inhalable particles in the environment

重型卡车频繁通过引起道路扬尘,导致周围环境可吸入颗粒物浓度上升,引发周围居民不良的健康反应。基于雨水对颗粒物的去除作用,现研究使用高压喷雾装置来去除环境中的可吸入颗粒物的有效性。通过在上海市某条易扬尘的道路上一侧设置高压喷雾装置,使用光散射法与重量法对试验区在使用高压喷雾装置前后的可吸入颗粒物的浓度进行计算对比。实验结果表明,喷雾开启对试验区的扬尘向外扩散有一定的改善作用,但喷雾装置的运行仍然没有达到显著控制试验区扬尘向外扩散的效果。

The large truck and mud tanker cause road dust and respirable particles spreading to the surrounding environment which is not good for the health of residents around.To improve this phenomenon,based on the removal of particles by rainwater,we use a spray device to remove the respirable particles from the environment.In this paper,the influence of the light scattering method and the weight method on the respirable particles in the test area was evaluated and tested by setting the spray device on a dusty road in Shanghai.Experimental results show,spray open to the test area of the dust outward diffusion has an improvement to a certain degree,however,the operation of the spraying device still did not reach the effect of controlling the outward diffusion of the dust in the test area.