灰尘污染的英文：
dust pollution
n. 尘土；粉尘
v. 擦灰；掸去；撒
dusted the cookies with sugar;dust crops with fertilizer.
将饼撒上糖粉；把化肥撒在作物上
Dust sugar on to a cake.
将糖撒在糕点上。
The carriage left a trail of dust.
马车后扬起了一缕烟尘。
He dusted his trousers.
他掸掉裤子上的尘土。
She dusts every day.
她每天掸灰尘。
n. 污染；污染物；污染地区
release (of a pollutant)
排出污染物; 放出污染物
This material is recyclable and will not pollute the environment.
这种材料是可循环利用的，因而不会污染环境。
Is the water polluted at source?
河水是在源头受到污染的吗？
Our tests are not polluting the atmosphere.
我们的试验并不沾污大气层。
long term effect of pollutant
污染物质远期效应