| abstract |
A method and a means for carrying out the method are specified with which acidic air constituents and optionally also fine dust are removed from the city air in the area of streets. This is done by applying a chemically reactive absorbent for acidic gases to large areas on the road surface at times when there is a need to clean the city air.n n n The absorbent, which can also be a mixture of different substances with optional auxiliaries, preferably comes from the group of alkali metal carbonates, alkali metal hydrogen carbonates, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, which are harmless to health.n n n The absorbent is preferably applied in an aqueous solution. In the case of a hygroscopic absorbent or auxiliary substance or liquid additive that does not evaporate easily, the agent also binds fine dust. |