Whenever a change to the air component has a quantity of dust. Gas, steam, steam, smog smell Slugs and radionuclides present in the atmosphere too. We call such a State as "air" or "air pollution".
Whenever a component of climate change to the amount of gas, dust, odor, smoke, vapor, soot, steam and radioactivity in the atmosphere, too. We call such conditions as "bad air" or "air pollution".
Whenever a component of the air changing quantity of dust, gas, smell, หมอกค days, steam, steam soot and radioactivity in the atmosphere too. We call such conditions. "Air" or "air pollution".