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Air quality in Waltham

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

Last update at 03:00, Apr 20 (local time)

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#	city	US AQI
1	Palm Desert, California	171
2	Yosemite Np Turtleback Dome, California	153
3	Springville, California	83
4	Indio, California	77
5	Greensboro, North Carolina	74
6	Campo, California	70
7	Cary, North Carolina	69
8	Harrisburg, Pennsylvania	69
9	Raleigh, North Carolina	69
10	Winston-Salem, North Carolina	67

03:00, Apr 20 (local time)

#	station	US AQI
1	Brandeis University	8

03:00, Apr 20 (local time)

US AQI

live AQI index
Good

Air pollution level	Air quality index	Main pollutant
Good	8 US AQI	PM2.5

Pollutants		Concentration
PM2.5		2µg/m³

✓

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

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Day	Pollution level	Weather	Temperature	Wind
Wednesday, Apr 17	Good 10 AQI US		46.4° 42.8°	6.7 mp/h
Thursday, Apr 18	Good 10 AQI US		57.2° 42.8°	8.9 mp/h
Friday, Apr 19	Good 10 AQI US		55.4° 41°	11.2 mp/h
Today	Good 8 AQI US	100%	55.4° 41°	11.2 mp/h
Sunday, Apr 21	Good 10 AQI US		55.4° 35.6°	11.2 mp/h
Monday, Apr 22	Good 11 AQI US		59° 37.4°	8.9 mp/h
Tuesday, Apr 23	Good 12 AQI US		64.4° 39.2°	11.2 mp/h
Wednesday, Apr 24	Good 12 AQI US	100%	57.2° 37.4°	11.2 mp/h
Thursday, Apr 25	Good 12 AQI US	20%	48.2° 30.2°	13.4 mp/h
Friday, Apr 26	Good 7 AQI US		51.8° 33.8°	11.2 mp/h