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Air quality near 331-379 US-20, Waltham

Air quality index (AQI⁺) and PM2.5 air pollution near 331-379 US-20, Waltham • 15:00, Apr 24 Local time

Data source: PurpleAir

Milford AQI Alert nearby

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US AQI⁺

Good

Main pollutant:

PM2.5

5.1 µg/m³

13°

7 km/h

32 %

Data source: PurpleAir

Hourly forecast

331-379 US-20, Waltham air quality index (AQI⁺) forecast

Now

13°

km/h

32%

16:00

13°

km/h

33%

17:00

12°

km/h

35%

18:00

12°

km/h

41%

19:00

9°

km/h

56%

20:00

8°

km/h

60%

21:00

7°

km/h

63%

22:00

8°

km/h

66%

23:00

8°

km/h

67%

Sat

00:00

7°

km/h

68%

01:00

6°

km/h

70%

02:00

6°

km/h

75%

03:00

6°

km/h

76%

04:00

6°

km/h

76%

05:00

6°

km/h

74%

06:00

5°

km/h

76%

07:00

6°

km/h

76%

08:00

7°

km/h

70%

09:00

7°

km/h

62%

10:00

8°

km/h

57%

11:00

9°

km/h

52%

12:00

10°

km/h

50%

13:00

10°

km/h

49%

14:00

11°

km/h

48%

15:00

11°

km/h

47%

16:00

11°

km/h

46%

17:00

11°

km/h

48%

18:00

10°

km/h

50%

19:00

10°

km/h

54%

20:00

9°

km/h

59%

21:00

8°

km/h

61%

22:00

8°

km/h

66%

23:00

8°

km/h

67%

Sun

00:00

8°

km/h

67%

01:00

8°

km/h

70%

02:00

8°

km/h

72%

03:00

8°

km/h

76%

04:00

8°

km/h

81%

05:00

7°

km/h

76%

06:00

7°

km/h

78%

07:00

7°

km/h

78%

08:00

8°

km/h

76%

09:00

9°

km/h

65%

10:00

9°

km/h

60%

11:00

9°

km/h

51%

12:00

10°

km/h

48%

13:00

10°

km/h

44%

14:00

11°

km/h

45%

15:00

11°

km/h

43%

16:00

11°

km/h

46%

17:00

11°

km/h

46%

18:00

11°

km/h

49%

19:00

10°

km/h

54%

20:00

9°

km/h

63%

21:00

7°

km/h

74%

22:00

7°

km/h

77%

23:00

6°

km/h

79%

Mon

00:00

6°

km/h

80%

01:00

6°

km/h

81%

02:00

6°

km/h

82%

03:00

6°

km/h

81%

04:00

6°

km/h

81%

05:00

6°

km/h

82%

06:00

6°

km/h

81%

07:00

7°

km/h

75%

08:00

8°

km/h

68%

09:00

9°

km/h

64%

10:00

12°

km/h

56%

11:00

13°

km/h

48%

12:00

14°

km/h

45%

13:00

15°

km/h

45%

14:00

14°

km/h

47%

Daily forecast

331-379 US-20, Waltham air quality index (AQI⁺) forecast

Today

13°

6°

km/h

48%

Sat

11°

5°

km/h

57%

Sun

11°

7°

km/h

59%

Air pollutants

What is the current air quality near 331-379 US-20?

PM2.5 concentration currently meets the WHO annual PM2.5 guideline.

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time 331-379 US-20, Waltham air pollution map

Pollen

What is the pollen count in 331-379 US-20 today?

Index

Low

Tree Low	25%
Grass None	0%
Weed None	0%

Source:

wetter.com

Pollen forecast

Protect yourself from air pollution in 331-379 US-20

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Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in 331-379 US-20 today?

Index

Low

Tree Low	25%
Grass None	0%
Weed None	0%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for 331-379 US-20

28 AQI⁺ US

Good

14:00–15:00 Apr 24 Local time

AQI⁺ US

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Most polluted locations near 331-379 US-20, Waltham

Worldwide AQI⁺ ranking

Station ranking

Real-time 331-379 US-20 AQI⁺ station ranking

#	Stations	AQI⁺ US
1	Moody St near the river	29
2	331-379 US-20	28

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Mission, Texas	101
2	Port Arthur, Texas	80
3	West Lake Hills, Texas	73
4	Harrodsburg, Kentucky	70
5	Columbia, South Carolina	69
6	Greenville, South Carolina	69
7	Spartanburg, South Carolina	68
8	Black Mountain, North Carolina	67
9	Middletown, Ohio	67
10	Asheville, North Carolina	66