Air Quality in Nevada

Nevada has 9 counties with EPA air quality monitoring. Air quality is stable across the state, with an average of 261 "Good" days per county per year. The best air quality is in Douglas (median AQI 22) and the most polluted is Clark (median AQI 64).

County	Median AQI	Max AQI	Good Days	Unhealthy Days	Trend	Top Pollutant
Carson City	45	105	270	1	→ stable	Ozone
Churchill	44	105	280	1	→ stable	Ozone
Clark	64	170	90	40	→ stable	Ozone
Douglas	22	76	308	0	↓ improving	PM2.5
Elko	23	113	318	1	↑ worsening	PM10
Lyon	42	90	310	0	→ stable	Ozone
Nye	31	247	319	3	↑ worsening	PM10
Washoe	50	119	188	4	→ stable	Ozone
White Pine	44	105	269	2	→ stable	Ozone