The ozone that develops at ground-level is created by a chemical reaction between emissions and weather conditions. The emissions contain volatile organic compounds and nitrogen oxides that are combined with sunlight to later produce ozone. This newly formed gas is very reactive and capable of damaging our respiratory tract and lungs.
There are currently 20 air quality monitors throughout the region that continuously monitor criteria pollutants like ozone. If air pollution levels actually reach unhealthy levels on monitors, the Texas Commission on Environmental Quality monitoring network will automatically update their exceedance maps to local authorities, news organizations and interested citizens. The information will be reported visually on an area map utilizing these colors: orange, red, purple and maroon, with maroon being the worst.
Our region’s monitors are also used to forecast an Air Pollution Action Day alert. Air Pollution Action Day alerts are announced when air quality forecasting suggests a high possibility of exceeding the ozone standard of 70 parts per billion for an 8-hour average. This air quality alert can be used by citizens to reduce ozone forming precursors through increased use of mass transit and other timely pollution prevention efforts.
Our region has a partner who has created a comprehensive resource page that allows citizens to easily retrieve local Air Quality Index Maps and Air Pollution Action Day Alert information. Follow this link to the North Central Texas Council of Governments’ Current Ozone Activity web page.
The Air Quality Index Chart & Health Message:
County Telephone Operator 817-884-1111
Tarrant County provides the information contained in this web site as a public service. Every effort is made to ensure that information provided is correct. However, in any case where legal reliance on information contained in these pages is required, the official records of Tarrant County should be consulted. Tarrant County is not responsible for the content of, nor endorses any site which has a link from the Tarrant County web site.
This site is best experienced with supported browsers: Internet Explorer 9 and above, Google Chrome, Mozilla Firefox, or Apple Safari. If you use an older or unsupported browser, you might notice that some features do not function properly. Click the browser name above to learn more about the recommended browsers.