Particulate Matter Health Effects
Some particles in the air are so small you can't see them. It is not good for you to breathe in too much of this tiny particulate matter. Particles in the air can make you cough. Particulate matter can also make it hard for you to take a deep breath and you might get more colds. If you already have asthma or problems with your heart, particulate matter could make you sick enough to go to the hospital.