Air Villain: Granny Olga Ozone
Status: At Large
Description: Ozone is a colorless gas with an acrid odor.
Crime: O3 can cause respiratory symptoms ranging from irritation and coughing to asthma and severe breathing problems in sensitive people, especially the elderly and small children. It is dangerous to be active outside when the ozone level is high, especially for children.
Cause: Ground-level ozone is the main ingredient in smog. It is formed by a chemical reaction between volatile organic compounds and nitrogen oxides in the presence of sunlight. Ozone concentrations can reach unhealthy levels on hot, sunny, calm days.