Air pollution was the least of their worries back in the 1800's they never even heard of it.
coal
As far as i know Newzealand is the least polluted country in the world, as it has least pollution levels, governments has launched a number of programs to control in the rising of pollution levels previously, therefore it has the best air quality and fresh air.
air pollution travels in the air
I've never heard of such a term but for sure genetically modified plants can cause soil pollution. Forest fires (natural, controlled or intentional) are source for air pollution. So there is a plant pollution after all, or at least pollution caused by plants
there's air pollution everywhere no matter where you go there's air pollution.
water pollution: polluting water air pollution: polluting air
There are many types of air pollution. There can be particulate air pollution from things like dirt and pollen. There can be chemical air pollution from things like engines.
Anthracite
Air pollution is negative
air pollution
Air pollution is not useful. It is a problem.