what are the social and environmental impact for rainwater use systems in commercial buildings?

Answer 1

This depends on the geographical location. Areas where high sulphur content is airborn can actually create acid rains which have a very distinct social and environmental impacts.

Rain water could be used to flush toilets, mop floors, water indoor plants just to name a few. But even then it would need to be filtered as each drop arrives with its very own dust particle.

This question sounds like a lesson question from the chapter of a study book. The answer may be more readily available from reading the associated material.

Answer 2

What would you use it for in a commercial building????

I had an aunt who collected the rainwater from her roof gutters and used it to wash her hair because it was "soft" water.
Other than that I can't think of a practical use for rainwater.
I'm sure not going to drink it after it hits the roof, maybe it could be used in the buildings sanitary system.

Answer 3

I do not understand, this Q, please give be more precise, in your enquiry.

Give examples.

Rain water it collected and used for drinking and other reasons on large or small scales all over the world.