Killing Killer Air
Smog is harmful to trees, animals, & building. Many deaths are caused by smog. Oulmonary diseases are also caused by smog. Trees and plants become infected when exposed this air pollutant. Their growth is also affected. Animals die and plants take time to once again, adapt to breath and survive in toxic environments.
Article found in ; http://www.epa.vic.gov.au/air/aq4kids/smog.asp