NOTE: Air quality is variable and dependent upon a number of factors including; sunlight, temperature, wind speed and direction. Like the weather, it can change from day to day or even hour to hour. Click here for more information on the many variables that impact the ADEQ Daily Ozone Forecast.
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The word ozone has a few meanings and sometimes can be a bit confusing. So just remember that ground-level ozone is bad ozone and you want to avoid it when possible. Ground-level ozone is a colorless gas that is the primary ingredient in urban smog that forms when volatile organic compounds (VOCs) and oxides of nitrogen (NOx), usually found in paint fumes, car exhausts and other sources, mix in the presence of sunlight. The pollutant that is formed during this chemical reaction can cause health problems to many in our community and is particularly dangerous to children and the elderly.

Ozone Action Days, in partnership with ADEQ and the Environmental Protection Agency (EPA) has established a health standard to limit human exposure to harmful concentrations of ground-level ozone. When conditions exceed healthy limits, an Ozone Action Day is declared. Depending on your health and the age of those in your care, caution should be used.

The Central Arkansas Ozone Action Days program applies to the central Arkansas area, which includes the counties of Pulaski, Faulkner, Lonoke and Saline. However, persons living outside this area may also be affected by high ozone concentrations on Ozone Action Days and should take appropriate actions.

For more information and advice on ozone reduction, click the links below.

Q. What is ground-level ozone, and where does it come from?

Q. Is ozone considered "good" or "bad"?

Q. Why is ozone hazardous to our health?

Q. How does ground-level ozone harm the environment?

Q. What are the EPA's standards for ozone?

Q. When is an Ozone Action Day declared?

Q. What area is effected by Ozone Action Days?

Q. How do people find out when an Ozone Action Day is declared?

Q. What is the Air Quality Index (AQI)?

Q. What are the two basic types of Ozone Action Days?

Q. How are Ozone Action Days declared?

Q. What should be done when the Ozone Forecast is code yellow?
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