Protect Yourself From Wildfire Smoke

Smoke is made up of a complex mixture of gases and fine particles produced when wood and other organic matter burn. These particles can cause burning eyes, runny nose, coughing, a scratchy throat, irritated sinuses and headaches.

Protect Yourself

Use common sense. If it looks smoky outside, it's probably not a good time to mow the lawn or go for a run. It's probably also not a good time for children to play outside. When smoke is heavy, avoid prolonged or heavy exertion. Remain indoors. Keeps windows and doors closed, temperature permitting. Keep your indoor air as clean as possible. Avoid using gas stoves or candles indoors. Dust masks are ineffective against smoke. If you have asthma, lung or heart disease and your symptoms worsen, call your doctor.

Visibility Ranges

Current visibility observations can be found on the AirNow website under Current Conditions. Here is current air quality data from Wyoming Department of Environmental Quality.

Visibility Range
Health Effect Category
10 miles and up
Good
6 to 9 miles
Moderate
3 to 5 miles
Unhealthy for sensitive groups
1.5 to 2.5 miles
Unhealthy
0.9 to 1.4 miles
Very unhealthy
0.8 miles or less
Hazardous

Health Effect Categories

Category Precautions
Good None
Moderate None
Unhealthy for Sensitive Groups
People with respiratory or heart disease, the elderly, and children should limit prolonged exertion.
Unhealthy Everyone should limit prolonged exertion.
Very Unhealthy
People with respiratory or heart disease, the elderly, and children should avoid any outdoor activity; everyone else should avoid prolonged exertion.
Hazardous Everyone should avoid any outdoor exertion; people with respiratory or heart disease, the elderly, and children should remain indoors.