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Air quality in San Mateo County

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 14 Followers • 11:00, May 12 Local time

9

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

1.7 µg/m³

weather condition icon

14°

wind direction icon

6 km/h

weather humid icon

86 %

Hourly forecast

San Mateo County air quality index (AQI⁺) forecast

Now

9

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

6

km/h

Humidity icon

86%

12:00

11

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

9

km/h

Humidity icon

75%

13:00

13

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

12

km/h

Humidity icon

74%

14:00

15

Weather icon

90%

14°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

14

km/h

Humidity icon

77%

15:00

17

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

14

km/h

Humidity icon

76%

16:00

19

Weather icon

90%

13°

IQAir AirVisual Air Quality Map Wind rotating 254 degree

15

km/h

Humidity icon

79%

17:00

21

Weather icon

90%

12°

IQAir AirVisual Air Quality Map Wind rotating 256 degree

16

km/h

Humidity icon

90%

18:00

23

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 258 degree

16

km/h

Humidity icon

96%

19:00

26

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

16

km/h

Humidity icon

97%

20:00

29

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

17

km/h

Humidity icon

97%

21:00

29

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

18

km/h

Humidity icon

98%

22:00

28

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 265 degree

13

km/h

Humidity icon

98%

23:00

28

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 267 degree

11

km/h

Humidity icon

98%

Wed

00:00

26

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 267 degree

12

km/h

Humidity icon

95%

01:00

24

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

12

km/h

Humidity icon

96%

02:00

23

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 261 degree

13

km/h

Humidity icon

99%

03:00

23

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 261 degree

13

km/h

Humidity icon

99%

04:00

24

Weather icon

90%

9°

IQAir AirVisual Air Quality Map Wind rotating 264 degree

14

km/h

Humidity icon

99%

05:00

25

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

14

km/h

Humidity icon

99%

06:00

25

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 268 degree

16

km/h

Humidity icon

99%

07:00

26

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

16

km/h

Humidity icon

99%

08:00

27

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 284 degree

16

km/h

Humidity icon

99%

09:00

27

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

15

km/h

Humidity icon

99%

10:00

28

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 279 degree

13

km/h

Humidity icon

99%

11:00

29

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

13

km/h

Humidity icon

99%

12:00

27

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

12

km/h

Humidity icon

98%

13:00

26

Weather icon

90%

11°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

13

km/h

Humidity icon

98%

14:00

25

Weather icon

90%

11°

IQAir AirVisual Air Quality Map Wind rotating 268 degree

14

km/h

Humidity icon

98%

15:00

23

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

16

km/h

Humidity icon

98%

16:00

21

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

15

km/h

Humidity icon

98%

17:00

20

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 269 degree

14

km/h

Humidity icon

98%

18:00

19

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 274 degree

15

km/h

Humidity icon

98%

19:00

19

Weather icon

90%

10°

IQAir AirVisual Air Quality Map Wind rotating 278 degree

16

km/h

Humidity icon

98%

20:00

19

Weather icon

90%

9°

IQAir AirVisual Air Quality Map Wind rotating 275 degree

15

km/h

Humidity icon

99%

21:00

19

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

12

km/h

Humidity icon

99%

22:00

20

Weather icon

90%

9°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

7

km/h

Humidity icon

98%

23:00

21

Weather icon

90%

9°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

5

km/h

Humidity icon

98%

Thu

00:00

22

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

4

km/h

Humidity icon

98%

01:00

23

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 219 degree

2

km/h

Humidity icon

99%

02:00

24

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 126 degree

2

km/h

Humidity icon

91%

03:00

25

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 276 degree

1

km/h

Humidity icon

84%

04:00

27

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 195 degree

0

km/h

Humidity icon

87%

05:00

29

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 71 degree

2

km/h

Humidity icon

74%

06:00

28

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 69 degree

1

km/h

Humidity icon

68%

07:00

27

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 42 degree

2

km/h

Humidity icon

71%

08:00

27

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 44 degree

2

km/h

Humidity icon

82%

09:00

27

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 26 degree

3

km/h

Humidity icon

87%

10:00

27

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 354 degree

3

km/h

Humidity icon

84%

11:00

27

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 340 degree

4

km/h

Humidity icon

78%

12:00

27

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 333 degree

4

km/h

Humidity icon

70%

13:00

28

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 305 degree

4

km/h

Humidity icon

65%

14:00

29

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

5

km/h

Humidity icon

67%

15:00

29

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 257 degree

8

km/h

Humidity icon

71%

16:00

29

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

9

km/h

Humidity icon

70%

17:00

30

Weather icon

90%

14°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

10

km/h

Humidity icon

68%

18:00

29

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 275 degree

11

km/h

Humidity icon

61%

19:00

28

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

10

km/h

Humidity icon

69%

20:00

27

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 255 degree

8

km/h

Humidity icon

84%

21:00

27

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 249 degree

8

km/h

Humidity icon

92%

22:00

27

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

7

km/h

Humidity icon

93%

23:00

28

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

8

km/h

Humidity icon

91%

Fri

00:00

28

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 243 degree

8

km/h

Humidity icon

91%

01:00

29

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

7

km/h

Humidity icon

93%

02:00

30

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 243 degree

7

km/h

Humidity icon

93%

03:00

30

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

7

km/h

Humidity icon

94%

04:00

31

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

6

km/h

Humidity icon

95%

05:00

32

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

5

km/h

Humidity icon

96%

06:00

31

Weather icon

9°

IQAir AirVisual Air Quality Map Wind rotating 222 degree

4

km/h

Humidity icon

96%

07:00

30

Weather icon

10°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

4

km/h

Humidity icon

89%

08:00

29

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 266 degree

5

km/h

Humidity icon

70%

09:00

29

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 293 degree

8

km/h

Humidity icon

54%

10:00

29

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 293 degree

8

km/h

Humidity icon

45%

Daily forecast

|

San Mateo County air quality index (AQI⁺) forecast

Today

13

Weather icon

90%

14°

10°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

18

km/h

Humidity icon

90%

Wed

29

Weather icon

90%

11°

9°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

16

km/h

Humidity icon

99%

Thu

25

Weather icon

18°

10°

IQAir AirVisual Air Quality Map Wind rotating 270 degree

11

km/h

Humidity icon

75%

Air pollutants

What is the current air quality in San Mateo County?

IQAir Check icon

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

air quality map

Real-time San Mateo County air pollution map

Health recommendations

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Enjoy outdoor activities

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Open your windows to bring clean, fresh air indoors

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Pollen

What is the pollen count in San Mateo County today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in San Mateo County

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

Open your windows to bring clean, fresh air indoors

Get a monitor
air quality map

Real-time San Mateo County air pollution map

Pollen

What is the pollen count in San Mateo County today?

Index

Pollen global icon

Low

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Low

25%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in San Mateo County

Protect yourself from air pollution in San Mateo County

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

Most polluted locations near San Mateo County

Worldwide AQI⁺ rankingArrow icon

Station ranking

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

#StationsAQI⁺ US
1
The national flag of USA

265 Old Spanish Trail

35

2
The national flag of USA

920 Bear Gulch Road

33

3
The national flag of USA

Arlington Way

29

4
The national flag of USA

Dirt Alpine

26

5
The national flag of USA

Alexander Avenue

22

6
The national flag of USA

Alberta Glen

13

7
The national flag of USA

Burlingame Hills

9

8
The national flag of USA

Durham Road

9

9
The national flag of USA

480 Tunitas Creek Road

7

10
The national flag of USA

Alpine Road

2

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Altadena, California

100

2
The national flag of USA

Pasadena, California

98

3
The national flag of USA

Claremont, California

95

4
The national flag of USA

Glendora, California

94

5
The national flag of USA

La Crescenta-Montrose, California

93

6
The national flag of USA

La Verne, California

89

7
The national flag of USA

La Cañada Flintridge, California

86

8
The national flag of USA

Highland, California

85

9
The national flag of USA

Rancho Cucamonga, California

84

10
The national flag of USA

Glendale, California

83

History

Historic air quality graph for San Mateo County

9 AQI⁺ US
Good
10:00–11:00 May 12 Local time
AQI⁺ US

History

Historic air quality graph for San Mateo County

9 AQI⁺ US
Good
10:00–11:00 May 12 Local time
AQI⁺ US

Most polluted locations near San Mateo County

Worldwide AQI⁺ rankingArrow icon

Station ranking

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

#StationsAQI⁺ US
1
The national flag of USA

265 Old Spanish Trail

35

2
The national flag of USA

920 Bear Gulch Road

33

3
The national flag of USA

Arlington Way

29

4
The national flag of USA

Dirt Alpine

26

5
The national flag of USA

Alexander Avenue

22

6
The national flag of USA

Alberta Glen

13

7
The national flag of USA

Burlingame Hills

9

8
The national flag of USA

Durham Road

9

9
The national flag of USA

480 Tunitas Creek Road

7

10
The national flag of USA

Alpine Road

2

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Altadena, California

100

2
The national flag of USA

Pasadena, California

98

3
The national flag of USA

Claremont, California

95

4
The national flag of USA

Glendora, California

94

5
The national flag of USA

La Crescenta-Montrose, California

93

6
The national flag of USA

La Verne, California

89

7
The national flag of USA

La Cañada Flintridge, California

86

8
The national flag of USA

Highland, California

85

9
The national flag of USA

Rancho Cucamonga, California

84

10
The national flag of USA

Glendale, California

83

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