add pollution to the air VS add air pollution

Question

I read a sentence,

While most printing companies use toxic inks that add air pollution, this company uses non-toxic inks that don't.

I think it should be

While most printing companies use toxic inks that add pollution to the air, this company uses non-toxic inks that don't.

While most printing companies use toxic inks that add to air pollution, this company uses non-toxic inks that don't.

"add air pollution" should be used as follows,

Certain people add air pollution to their reasons for not living in big cities.

We should add air pollution control.

Am I right?

Answer 1

My own inclination would be to use ...toxic inks add pollution to the air.

Everyone would know what you meant if you said ...add air pollution, but strictly speaking "air pollution" is not a substance but a condition - and hence not something which you can "add" to something else.

You could, however, say ...toxic inks increase air pollution.

So either of the two highlighted would be fine - in my opinion.

Answer 2

"Add air pollution" is perfectly fine, as it already shows how pollition goes into the air. There is no need for changing this.