We are now able to use several mediums to inform the public quickly when ozone levels are elevated and what residents can do to protect their health. Since ozone levels are generally lower indoors, another way to reduce your exposure during an ozone advisory is to move activities indoors whenever possible. People exposed to elevated levels of ozone may experience a variety of symptoms. The most common symptom is a feeling of irritation in the eyes, nose, and throat.
Some people also experience shortness of breath, chest pain, and wheezing.
Very young people and people with pre-existing lung disease, such as asthma, may be more seriously affected during an ozone advisory. For the very young, those involved in vigorous outdoor work of exercise, or those with pre-existing chronic respiratory disease, special care should be taken to limit outdoor activity during peak ozone hours. Ground-level ozone is formed by photochemical reactions when emissions of nitrogen oxides and unburned hydrocarbons from automobile exhaust, gasoline vapors and industrial solvents mix under sunny, hot conditions. This pollutant should not be confused with ozone in the upper atmosphere. The new standard is designed to be more protective of public health.