Too many particles can escape the natural filter system in the lungs. Hazardous chemicals can hurt the delicate lung tissues, making it harder to breathe. The air can be polluted outdoors, or it can be polluted indoors. Anytime that air is polluted, it interferes with the work that your lungs do. When kids breathe polluted air every day, their lungs become damaged, unable to do the work of getting enough oxygen to the blood.
Simple breathing becomes difficult or painful.
After learning about air pollution, you can enter a contest with a poster that you can make. The posters show what kids can do to clean up air pollution. There's a lot to learn about air pollution. You might be interested in the health effects of air pollution - what polluted air does to your body. Or you might want to know the difference between clean air and polluted air - the chemicals and particles that make pollution and where they come from.