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Air Quality


The City of Fort Collins is committed to supporting attainment of Federal standards for ozone by implementing programs and policies that reduce local emissions of ozone-causing pollutants, and supporting legislation and policy that reduces regional transport of ozone and ozone-causing pollutants.  The Fort Collins Air Quality Plan details plans for ozone attainment by working locally to reduce pollution from sources such as gas and diesel vehicles and engines, and collaborating regionally to decrease transported pollution, such as impacts from oil and gas operations.

Programs to Help Reduce Ozone#

Vehicle Idling

Unnecessary vehicle idling isn't good for our air, wallets or cars.  Learn the facts about idling and how you can be part of the solution.

Oil and Gas

Learn about regulations, monitoring and health impacts related to oil and gas operations in and around Fort Collins.

Lawn and Garden Equipment

Find out about the City's residential rebate program and efforts to convert from gas to electric lawn and garden equipment.

Ozone Frequently Asked Questions#

What is Ozone?highlight_off

Ozone is a molecule of three oxygen atoms bound together (O3). It is unstable and highly reactive. "Good" ozone in the upper atmosphere protects us from harmful ultraviolet rays. However, the ozone that affects us negatively is ground-level air pollution that forms when emissions from cars, lawn & garden equipment or volatile substances (paints, solvents) bake in the sunshine. Ozone levels build up during the heat of the day under hot, sunny conditions with little to no wind.

What is being done to bring the region into compliance?highlight_off

The North Front Range Metropolitan Planning Organization is partnering with the Denver Regional Air Quality Council and the Colorado Department of Public Health and Environment to develop an ozone compliance plan, or SIP (State Implementation Plan).

How does ozone affect human health?highlight_off

The reactivity of ozone causes health problems because it damages lung tissue, reduces lung function, and increases the sensitivity of the lungs to other irritants. Symptoms of decreased lung function include chest pain, coughing, sneezing and pulmonary congestion. Ozone can also act as an irritant to the mucous membranes of the eyes and throat and can reduce immune system capacity. In high concentrations, ozone causes damage to plants and deteriorates materials such as rubber and nylon.

Who is most at risk?highlight_off

Scientific evidence suggests that ozone affects not only individuals with respiratory problems, but also affects healthy adults and children.

What are ozone action alerts?highlight_off

Ozone action alerts are issued by the Colorado Department of Public Health during the summer ozone season (June 1 - August 31) based on daily forecasts of conditions that produce higher ozone levels. Ozone messages on any alert will be tailored to the expected ozone level so that groups at particular risk can be advised. Individuals can obtain a daily air quality advisory on-line. The State also operates a toll-free telephone hotline to help keep Colorado residents informed about current and predicted air quality conditions. The number is 1-888-484-3247 (1-888-4-THE AIR).

What happens if there is an ozone action alert day?highlight_off

During ozone alert days, people can lower their risk of developing symptoms by limiting prolonged outdoor exposure. If ozone levels are moderately elevated, unusually sensitive individuals may experience symptoms and are encouraged to stay indoors as much as possible.

What are ozone levels in Fort Collins?highlight_off

Ozone concentrations are also reported in the Fort Collins Air Quality Trends Reports.

For more recent ozone measurements in Fort Collins and other Colorado locations, see the Air Pollution Division web site.

What can I do to help reduce ozone pollution?highlight_off

During the summer season, and especially during ozone action alerts, everyone can do their part to reduce ozone pollution by taking voluntary and simple steps:

  • Stop at the click when refueling
  • Limit driving, combine trips or use alternative transportation
  • Mow when the sun is low
  • Use a spill-free gas can for fueling lawn and garden equipment