Air pollution has become a serious problem nowadays, it affects our environment and people lives really bad in a dangerous way and can be the reason of illness. I think the main causes of it in urban areas are fabrics, engines of cars, airplanes, buses, and others vehicles, and huge amount of trash.
Firstly, smoke, from huge tubes of fabric, venoms air due to big toxic chemical elements amount. This cause probably can be solved, at least a bit, by relocating a fabric further out of city. This solution will help with saving health of humans, not letting them breathing through venomous gas.
Secondly, almost every engine requires fuel which transforms into toxic gas in the end of using. However, this problem is slowly being solved from year to year. Now we have different types of engines, some of them almost doesn’t affect air, for instance, electric because it doesn’t need any fuel but energy. Furthermore, people improve type of gasoline, we had euro one, two, three and now we use euro four which causes air pollution quite less than euro one for example.
Thirdly, in many countries, there are no laws about recycling trash. This makes a mountain of stinking organic material that causes air pollution as well. I think the only solution is a law that makes people sort trash, it will solve the problem from the beginning.
In conclusion, I would like to say that humans should be more aware about circumstances of this terrible problem and try as hard as they can, helping air being clearer.