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Air quality in San Mateo County

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 15 Followers • 13:00, Jun 02 Local time

US AQI⁺

Good

Main pollutant:

PM2.5

6 µg/m³

17°

5 km/h

69 %

Hourly forecast

San Mateo County air quality index (AQI⁺) forecast

Now

17°

km/h

69%

14:00

17°

km/h

71%

15:00

15°

km/h

72%

16:00

90%

15°

km/h

74%

17:00

14°

km/h

76%

18:00

13°

km/h

81%

19:00

90%

13°

km/h

78%

20:00

12°

km/h

80%

21:00

10°

km/h

92%

22:00

90%

10°

km/h

89%

23:00

90%

10°

km/h

97%

Wed

00:00

10°

km/h

92%

01:00

90%

9°

km/h

90%

02:00

90%

9°

km/h

88%

03:00

9°

km/h

94%

04:00

90%

9°

km/h

95%

05:00

90%

9°

km/h

99%

06:00

9°

km/h

92%

07:00

90%

10°

km/h

87%

08:00

90%

11°

km/h

79%

09:00

12°

km/h

68%

10:00

90%

14°

km/h

61%

11:00

15°

km/h

53%

12:00

16°

km/h

51%

13:00

17°

km/h

47%

14:00

17°

km/h

50%

15:00

17°

km/h

57%

16:00

16°

km/h

67%

17:00

16°

km/h

77%

18:00

15°

km/h

88%

19:00

13°

km/h

96%

20:00

90%

12°

km/h

97%

21:00

12°

km/h

97%

22:00

90%

11°

km/h

98%

23:00

90%

10°

km/h

98%

Thu

00:00

10°

km/h

98%

01:00

90%

9°

km/h

98%

02:00

90%

9°

km/h

98%

03:00

9°

km/h

98%

04:00

90%

9°

km/h

98%

05:00

90%

9°

km/h

98%

06:00

11°

km/h

75%

07:00

11°

km/h

85%

08:00

13°

km/h

85%

09:00

14°

km/h

87%

10:00

15°

km/h

81%

11:00

16°

km/h

74%

12:00

17°

km/h

69%

13:00

16°

km/h

71%

14:00

90%

15°

km/h

73%

15:00

14°

km/h

69%

16:00

90%

13°

km/h

74%

17:00

90%

13°

km/h

77%

18:00

15°

km/h

66%

19:00

14°

km/h

69%

20:00

12°

km/h

81%

21:00

10°

km/h

94%

22:00

10°

km/h

95%

23:00

10°

km/h

95%

Fri

00:00

10°

km/h

96%

01:00

10°

km/h

96%

02:00

10°

km/h

96%

03:00

9°

km/h

96%

04:00

9°

km/h

97%

05:00

9°

km/h

97%

06:00

9°

km/h

97%

07:00

10°

km/h

91%

08:00

13°

km/h

78%

09:00

15°

km/h

65%

10:00

18°

km/h

54%

11:00

20°

km/h

49%

12:00

20°

km/h

49%

Daily forecast

San Mateo County air quality index (AQI⁺) forecast

Today

17°

10°

km/h

82%

Wed

17°

9°

km/h

74%

Thu

17°

10°

km/h

78%

Air pollutants

What is the current air quality in San Mateo County?

PM2.5 concentration is currently 1.2 times the World Health Organization annual PM2.5 guideline value.

Real-time San Mateo County 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 County

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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.

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Powerful, stylish air purifiers

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

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Pollen

What is the pollen count in San Mateo County today?

Index

Low

Tree

None

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast in San Mateo County

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time San Mateo County air pollution map

Pollen

What is the pollen count in San Mateo County today?

Index

Low

Tree

None

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast in San Mateo County

Protect yourself from air pollution in San Mateo County

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 County

Worldwide AQI⁺ ranking

Station ranking

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

#	Stations	AQI⁺ US
1	920 Bear Gulch Road	43
2	Alberta Glen	41
3	Arlington Way	37
4	265 Old Spanish Trail	35
5	Durham Road	33
6	Alexander Avenue	32
7	480 Tunitas Creek Road	30
8	Experimental Facilities Dept Shops EFD	29
9	Dirt Alpine	27
10	Alpine Road	26

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Dallas, Texas	104
2	Mission, Texas	79
3	Jurupa Valley, California	77
4	East Los Angeles, California	76
5	Huntington Park, California	69
6	Glendora, California	68
7	Florence-Graham, California	67
8	San Antonio, Texas	67
9	West Hollywood, California	67
10	Baton Rouge, Louisiana	66

History

Historic air quality graph for San Mateo County

33 AQI⁺ US

Good

12:00–13:00 Jun 02 Local time

AQI⁺ US

History

Historic air quality graph for San Mateo County

33 AQI⁺ US

Good

12:00–13:00 Jun 02 Local time

AQI⁺ US

Most polluted locations near San Mateo County

Worldwide AQI⁺ ranking

Station ranking

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

#	Stations	AQI⁺ US
1	920 Bear Gulch Road	43
2	Alberta Glen	41
3	Arlington Way	37
4	265 Old Spanish Trail	35
5	Durham Road	33
6	Alexander Avenue	32
7	480 Tunitas Creek Road	30
8	Experimental Facilities Dept Shops EFD	29
9	Dirt Alpine	27
10	Alpine Road	26

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Dallas, Texas	104
2	Mission, Texas	79
3	Jurupa Valley, California	77
4	East Los Angeles, California	76
5	Huntington Park, California	69
6	Glendora, California	68
7	Florence-Graham, California	67
8	San Antonio, Texas	67
9	West Hollywood, California	67
10	Baton Rouge, Louisiana	66