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AIR QUALITY

The Air Quality table shows the 17-year average of the EPA's Air Quality Index, an approximate indicator of overall air pollution. The index is based on measurements of carbon monoxide, ozone and other pollutants.

The % Good Days column is the percentage of days measured in your favorite retirement city or town that offered good air quality with the lowest level of pollutants.

Vail, Colorado and Kailua, Hawaii boast the best air quality among our 99 top retirement cities with a greater than 93% of Good Days.

Air Quality
2001 - 2017
				Unhealthy		Very
	%	Good	Moderate	Days For	Unhealthy	Unhealthy
	Good	Days	Days	SensPerson	Days	Days	GPTR
City/Town	Days	per Year	per Year	per Year	per Year	per Year	Rank
Vail, CO	97%	213	7	0	0	0	1
Kailua, Oahu, HI	94%	342	22	0	1	0	2
Monterey, CA	93%	341	23	1	0	0	3
Casper, WY	93%	182	13	0	0	0	4
Santa Fe, NM	93%	340	25	0	0	0	5
Port Townsend, WA	93%	295	23	0	0	0	6
Kingston, NY	92%	317	23	3	0	0	7
Bellingham, WA	91%	313	30	1	0	0	8
Bend, OR	90%	316	32	1	2	0	9
Aspen, CO	90%	245	27	1	0	0	10
Provincetown, MA	89%	255	24	6	1	0	11
Yarmouth, Cape Cod, MA	89%	255	24	6	1	0	11
Fargo, ND	89%	322	41	1	0	0	13
Fond du Lac, WI	88%	176	20	3	0	0	14
Naples, FL	88%	307	42	0	0	0	15
Good = Air quality is measured as good quality
Moderate = Air quality is measured as moderate quality
Unhealthy for SensPerson = Air quality is measured as unhealthy for sensitive persons
Unhealthy = Air quality is measured as unhealthy
Very Unhealthy = Air quality is measured as very unhealthy

Total number of days measured per location is 365 or less.

GPTR Rank - Higher "% Good/Moderate Days" is better

AIR QUALITY

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