Air Quality Index

What is the Air Quality Index (AQI)?

The Air Quality Index (AQI) is a national uniform system to report air pollution levels and provide citizens with information about the general health effects associated with different pollution levels. The AQI converts the highest measured pollutant concentration in a community’s air to a number on a scale of 0 to 500. The data is updated hourly and reported here.

The intervals and terms describing the AQI are as follows:

AQI Category	Health - Cautionary Statement
From 0 to 50...Good/Green	none
From 51 to 100...Moderate/Yellow	Unusually sensitive people should consider reducing prolonged and heavy exertion
From 101 to 150...Unhealthy for Sensitive Groups/Orange	People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.
From 151 to 200...Unhealthy/Red	People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion. Everyone else should reduce prolonged or heavy exertion.
From 201 to 300...Very Unhealthy	People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.
Above 300...Hazardous	People with heart or lung disease, older adults, and children should remain indoors and keep activity levels low. Everyone else should avoid all physical activity outdoors.

 

AQI for Spokane, days in each category	2012	2011	2010	2009	2008
Good/Green	314	318	323	324	309
Moderate/Yellow	49	47	39	39	56
Unhealthy for Sensitive Groups/Orange	3	0	3	2	1
Unhealthy/Red	0	0	0	0	0

Email Notifications of Daily Air Quality
Throughout the year, the Spokane Clean Air monitors daily air quality and reports pollution levels via its website and email. You can get emails at home of daily air quality, wood burning bans, etc. You select which list you want to subscribe to, for free! Click here.