Smog and Blood Cells

Make a brain frame based on the paragraph below. Some ideas in it should be familiar to you from our blood cells unit.

Pollution in the air can cause problems with breathing

When there is heavy pollution, particles from smog collect in your lungs. Your white blood cells attack these particles when they are in your lungs, because they smell like germs. Since the white blood cells release poison when they fight, your throat and lungs swell up. This causes you to wheeze and cough.