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Air quality in San Mateo

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo • 12 Followers • 12:00, Sep 14 Local time

US AQI⁺

Good

Main pollutant:

PM10

23 µg/m³

32°

8 km/h

55 %

Hourly forecast

San Mateo air quality index (AQI⁺) forecast

Now

32°

km/h

55%

13:00

32°

km/h

52%

14:00

32°

km/h

54%

15:00

32°

km/h

55%

16:00

31°

km/h

57%

17:00

30°

km/h

59%

18:00

27°

km/h

70%

19:00

70%

27°

km/h

81%

20:00

26°

km/h

85%

21:00

26°

km/h

86%

22:00

26°

km/h

87%

23:00

26°

km/h

87%

Tue

00:00

26°

km/h

87%

01:00

25°

km/h

87%

02:00

25°

km/h

87%

03:00

25°

km/h

87%

04:00

25°

km/h

86%

05:00

25°

km/h

85%

06:00

25°

km/h

84%

07:00

26°

km/h

80%

08:00

28°

km/h

73%

09:00

30°

km/h

65%

10:00

31°

km/h

58%

11:00

32°

km/h

54%

12:00

32°

km/h

52%

13:00

32°

km/h

52%

14:00

80%

31°

km/h

65%

15:00

80%

31°

km/h

64%

16:00

30°

km/h

67%

17:00

29°

km/h

76%

18:00

28°

km/h

85%

19:00

27°

km/h

85%

20:00

27°

km/h

85%

21:00

26°

km/h

86%

22:00

26°

km/h

88%

23:00

25°

km/h

88%

Wed

00:00

70%

25°

km/h

89%

01:00

25°

km/h

87%

02:00

25°

km/h

86%

03:00

25°

km/h

86%

04:00

25°

km/h

86%

05:00

25°

km/h

86%

06:00

25°

km/h

86%

07:00

26°

km/h

81%

08:00

28°

km/h

74%

09:00

29°

km/h

67%

10:00

31°

km/h

60%

11:00

31°

km/h

56%

12:00

31°

km/h

53%

13:00

31°

km/h

52%

14:00

31°

km/h

55%

15:00

31°

km/h

58%

16:00

80%

30°

km/h

74%

17:00

80%

29°

km/h

78%

18:00

27°

km/h

81%

19:00

27°

km/h

84%

20:00

27°

km/h

84%

21:00

26°

km/h

84%

22:00

26°

km/h

84%

23:00

25°

km/h

87%

Thu

00:00

25°

km/h

87%

01:00

25°

km/h

86%

02:00

25°

km/h

85%

03:00

25°

km/h

84%

04:00

25°

km/h

84%

05:00

25°

km/h

85%

06:00

25°

km/h

85%

07:00

26°

km/h

81%

08:00

28°

km/h

75%

09:00

29°

km/h

68%

10:00

30°

km/h

61%

11:00

31°

km/h

57%

Daily forecast

San Mateo air quality index (AQI⁺) forecast

Today

32°

24°

km/h

70%

Tue

32°

25°

km/h

72%

Wed

31°

25°

km/h

71%

Air pollutants

What is the current air quality in San Mateo?

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

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

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering 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

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Most polluted locations near San Mateo

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo

#	Stations	AQI⁺ US
1	Quezon City (SMPH Commonwealth)	96
2	Tivoli	54
3	Barangay Fortune - Santan Street	44

City ranking

Real-time Philippines AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Muntinlupa, Calabarzon	124
2	Las Pinas, National Capital Region	122
3	Pasig City, National Capital Region	93
4	Caloocan, National Capital Region	86
5	Pasay, National Capital Region	84
6	San Juan, National Capital Region	80
7	Paranaque, National Capital Region	79
8	Mandaluyong, National Capital Region	78
9	Makati, National Capital Region	75
10	Marikina, National Capital Region	68

History

Historic air quality graph for San Mateo

21 AQI⁺ US

Good

12:00–13:00 Sep 14 Local time

AQI⁺ US

History

Historic air quality graph for San Mateo

21 AQI⁺ US

Good

12:00–13:00 Sep 14 Local time

AQI⁺ US

Most polluted locations near San Mateo

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo

#	Stations	AQI⁺ US
1	Quezon City (SMPH Commonwealth)	96
2	Tivoli	54
3	Barangay Fortune - Santan Street	44

City ranking

Real-time Philippines AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Muntinlupa, Calabarzon	124
2	Las Pinas, National Capital Region	122
3	Pasig City, National Capital Region	93
4	Caloocan, National Capital Region	86
5	Pasay, National Capital Region	84
6	San Juan, National Capital Region	80
7	Paranaque, National Capital Region	79
8	Mandaluyong, National Capital Region	78
9	Makati, National Capital Region	75
10	Marikina, National Capital Region	68