Which city has better air quality, Honolulu or Juneau?
Honolulu has better overall air quality with an average AQI of 28 ("Good") compared to Juneau's AQI of 30 ("Good"). That is a difference of 2 AQI points.
How does PM2.5 compare between Honolulu and Juneau?
Honolulu has a lower PM2.5 average at 4.5 μg/m³, while Juneau averages 5 μg/m³. The EPA annual standard is 12 μg/m³. Both cities meet the EPA standard.
Which city has more good air quality days, Honolulu or Juneau?
Honolulu has 88% good air quality days compared to 85% in Juneau. That means residents of Honolulu enjoy clean air about 3 percentage points more often.
How does wildfire risk compare between Honolulu and Juneau?
Honolulu has a low wildfire risk while Juneau has a low risk. Both cities face similar wildfire smoke exposure levels.
What are the primary pollutants in Honolulu vs Juneau?
Honolulu's primary pollutant is PM2.5 (ozone avg 24 ppb), while Juneau's is PM2.5 (ozone avg 20 ppb). Both cities share the same primary pollutant, though concentrations differ.