It scars your lungs, causes small skin irritations and may lead to respiratory problems. On a nice night you have a good breeze blowing, and sulfur blows everywhere. Pinkerton believes the nightly sulfur showers may be making the Robles family's asthma problem even worse. If it gets into your lungs then you'll have respiratory problems. As far as any damage to the cars, Pinkerton believes the fireworks may also be responsible.
Sulfur can cause oxidation to occur.
You could have any kind of moisture or rain in the air then sulfur reacts and it turns into a rusting process. It eats away at the coating and paint of the cars and that's just sulfur alone. Other experts express different concerns. Cal State Fullerton environmental chemist Harold Rogers' main problem regarding the fireworks is the chemical fallout. I'm not worried about the air.