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Air quality in Helena

Air quality index (AQI) and PM2.5 air pollution in Helena

Last update at 23:00, Apr 26 (local time)

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#	city	US AQI
1	Yosemite Np Turtleback Dome, California	83
2	Corpus Christi, Texas	82
3	Georgetown, Texas	66
4	Maricopa, Arizona	65
5	The Woodlands, Texas	65
6	Waynesville, North Carolina	64
7	Gatlinburg, Tennessee	63
8	Chattanooga, Tennessee	62
9	Round Rock, Texas	61
10	Alpharetta, Georgia	60

23:00, Apr 26 (local time)

#	station	US AQI
1	Helena - NCORE	36
2	Rossiter Pump House	33
3	Craig Missouri River Ranches Air Quality Monitoring Station	31
4	Mount Helena Drive	21
5	Clancy Street	20
6	Orange Street	19
7	West Main Street	18
8	Bison Engineering Helena	17
9	Eames Lane	17
10	Cooney Drive	16

23:00, Apr 26 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	17 US AQI	PM2.5

Pollutants		Concentration
PM2.5		4.2µg/m³

✓

PM2.5 concentration in Helena air currently meets the WHO annual air quality guideline value

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Day	Pollution level	Weather	Temperature	Wind
Wednesday, Apr 24	Good 36 AQI US		64.4° 42.8°	6.7 mp/h
Thursday, Apr 25	Good 35 AQI US		57.2° 42.8°	11.2 mp/h
Today	Good 17 AQI US
Saturday, Apr 27	Good 17 AQI US	90%	48.2° 41°	6.7 mp/h
Sunday, Apr 28	Good 8 AQI US		57.2° 37.4°	15.7 mp/h
Monday, Apr 29	Good 5 AQI US	70%	48.2° 37.4°	13.4 mp/h
Tuesday, Apr 30	Good 4 AQI US		48.2° 32°	13.4 mp/h
Wednesday, May 1	Good 4 AQI US	90%	39.2° 32°	11.2 mp/h
Thursday, May 2	Good 6 AQI US		55.4° 32°	4.5 mp/h
Friday, May 3	Good 5 AQI US	100%	53.6° 41°	4.5 mp/h