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Air quality in San Mateo

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo • 43 Followers • 07:00, Oct 21 Local time

46*

US AQI⁺

Good

Main pollutant:

PM2.5

8.4 µg/m³

12°

6 km/h

88 %

Hourly forecast

San Mateo air quality index (AQI⁺) forecast

Now

12°

km/h

88%

09:00

14°

km/h

74%

10:00

16°

km/h

62%

11:00

17°

km/h

56%

12:00

16°

km/h

63%

13:00

80%

15°

km/h

76%

14:00

90%

15°

km/h

81%

15:00

90%

14°

km/h

88%

16:00

90%

13°

km/h

93%

17:00

80%

14°

km/h

89%

18:00

13°

km/h

89%

19:00

12°

km/h

94%

20:00

13°

km/h

86%

21:00

14°

km/h

73%

22:00

14°

km/h

72%

23:00

14°

km/h

75%

Thu

00:00

13°

km/h

77%

01:00

13°

km/h

77%

02:00

13°

km/h

77%

03:00

13°

km/h

78%

04:00

12°

km/h

78%

05:00

12°

km/h

80%

06:00

12°

km/h

82%

07:00

13°

km/h

71%

08:00

15°

km/h

62%

09:00

17°

km/h

55%

10:00

18°

km/h

50%

11:00

18°

km/h

49%

12:00

18°

km/h

50%

13:00

17°

km/h

53%

14:00

80%

18°

km/h

55%

15:00

80%

17°

km/h

64%

16:00

16°

km/h

66%

17:00

16°

km/h

70%

18:00

15°

km/h

84%

19:00

14°

km/h

84%

20:00

14°

km/h

76%

21:00

14°

km/h

76%

22:00

14°

km/h

77%

23:00

14°

km/h

79%

Fri

00:00

13°

km/h

80%

01:00

13°

km/h

79%

02:00

13°

km/h

79%

03:00

13°

km/h

80%

04:00

13°

km/h

81%

05:00

12°

km/h

81%

06:00

12°

km/h

81%

07:00

14°

km/h

69%

08:00

15°

km/h

59%

09:00

16°

km/h

51%

10:00

18°

km/h

46%

11:00

18°

km/h

45%

12:00

18°

km/h

47%

13:00

18°

km/h

52%

14:00

70%

16°

km/h

70%

15:00

15°

km/h

75%

16:00

15°

km/h

81%

17:00

15°

km/h

86%

18:00

14°

km/h

92%

19:00

13°

km/h

93%

20:00

70%

13°

km/h

92%

21:00

13°

km/h

87%

22:00

13°

km/h

88%

23:00

13°

km/h

90%

Sat

00:00

13°

km/h

89%

01:00

13°

km/h

88%

02:00

13°

km/h

88%

03:00

13°

km/h

82%

04:00

13°

km/h

74%

05:00

14°

km/h

71%

06:00

14°

km/h

73%

07:00

14°

km/h

72%

Daily forecast

San Mateo air quality index (AQI⁺) forecast

Today

17°

11°

km/h

80%

Thu

18°

12°

km/h

66%

Fri

18°

12°

km/h

71%

Air pollutants

What is the current air quality in San Mateo?

PM2.5 concentration is currently 1.7 times the World Health Organization annual PM2.5 guideline value.

Real-time San Mateo air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in San Mateo

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Filtration for air conditioners

A cut-to-fit filtration for air conditioning systems, LifeShield Lite helps reduce dust in the air conditioner while capturing indoor air pollutants.

Lifeshield Lite

Sustainable, smart air purifiers

Elegantly designed using sustainably sourced beech wood, the Atem Earth delivers medical-grade filtration by capturing ultrafine particles with HyperHEPA technology.

Atem Series

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time San Mateo air pollution map

Protect yourself from air pollution in San Mateo

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Filtration for air conditioners

A cut-to-fit filtration for air conditioning systems, LifeShield Lite helps reduce dust in the air conditioner while capturing indoor air pollutants.

Lifeshield Lite

Sustainable, smart air purifiers

Elegantly designed using sustainably sourced beech wood, the Atem Earth delivers medical-grade filtration by capturing ultrafine particles with HyperHEPA technology.

Atem Series