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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 • 19:00, Jun 09 Local time

13

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

2.5 µg/m³

weather condition icon

14°

wind direction icon

9 km/h

weather humid icon

81 %

Hourly forecast

San Mateo County air quality index (AQI⁺) forecast

Now

13

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 283 degree

9

km/h

Humidity icon

81%

20:00

15

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 262 degree

5

km/h

Humidity icon

80%

21:00

17

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

4

km/h

Humidity icon

77%

22:00

19

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

3

km/h

Humidity icon

74%

23:00

22

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 273 degree

1

km/h

Humidity icon

70%

Wed

00:00

24

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 0 degree

1

km/h

Humidity icon

70%

01:00

26

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 340 degree

2

km/h

Humidity icon

70%

02:00

27

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 27 degree

2

km/h

Humidity icon

69%

03:00

29

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 16 degree

3

km/h

Humidity icon

68%

04:00

31

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 20 degree

3

km/h

Humidity icon

69%

05:00

38

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 31 degree

4

km/h

Humidity icon

67%

06:00

41

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 57 degree

5

km/h

Humidity icon

64%

07:00

43

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 1 degree

1

km/h

Humidity icon

75%

08:00

63

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 18 degree

5

km/h

Humidity icon

78%

09:00

63

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 28 degree

5

km/h

Humidity icon

71%

10:00

63

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 7 degree

5

km/h

Humidity icon

65%

11:00

66

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 358 degree

6

km/h

Humidity icon

62%

12:00

66

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 341 degree

7

km/h

Humidity icon

65%

13:00

66

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 327 degree

6

km/h

Humidity icon

60%

14:00

65

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 307 degree

5

km/h

Humidity icon

50%

15:00

65

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 288 degree

6

km/h

Humidity icon

54%

16:00

65

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

6

km/h

Humidity icon

55%

17:00

66

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 272 degree

4

km/h

Humidity icon

52%

18:00

66

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 287 degree

3

km/h

Humidity icon

53%

19:00

66

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

1

km/h

Humidity icon

53%

20:00

65

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 93 degree

1

km/h

Humidity icon

48%

21:00

65

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 70 degree

2

km/h

Humidity icon

33%

22:00

65

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 29 degree

3

km/h

Humidity icon

27%

23:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 37 degree

3

km/h

Humidity icon

30%

Thu

00:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 39 degree

3

km/h

Humidity icon

32%

01:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 19 degree

2

km/h

Humidity icon

35%

02:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 17 degree

2

km/h

Humidity icon

38%

03:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 16 degree

4

km/h

Humidity icon

39%

04:00

63

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 23 degree

5

km/h

Humidity icon

27%

05:00

65

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 35 degree

6

km/h

Humidity icon

25%

06:00

65

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 53 degree

7

km/h

Humidity icon

25%

07:00

65

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 61 degree

8

km/h

Humidity icon

23%

08:00

62

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 70 degree

9

km/h

Humidity icon

26%

09:00

62

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 71 degree

9

km/h

Humidity icon

26%

10:00

62

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 58 degree

8

km/h

Humidity icon

22%

11:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 33 degree

7

km/h

Humidity icon

21%

12:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 333 degree

4

km/h

Humidity icon

27%

13:00

63

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 281 degree

5

km/h

Humidity icon

45%

14:00

59

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 228 degree

6

km/h

Humidity icon

50%

15:00

59

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 210 degree

9

km/h

Humidity icon

53%

16:00

59

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

9

km/h

Humidity icon

51%

17:00

58

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

10

km/h

Humidity icon

50%

18:00

58

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 233 degree

12

km/h

Humidity icon

52%

19:00

58

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 231 degree

11

km/h

Humidity icon

62%

20:00

58

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

7

km/h

Humidity icon

77%

21:00

58

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 220 degree

5

km/h

Humidity icon

83%

22:00

58

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 217 degree

6

km/h

Humidity icon

79%

23:00

58

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

6

km/h

Humidity icon

76%

Fri

00:00

58

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 193 degree

6

km/h

Humidity icon

72%

01:00

58

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 205 degree

6

km/h

Humidity icon

69%

02:00

53

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 201 degree

6

km/h

Humidity icon

67%

03:00

53

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 215 degree

5

km/h

Humidity icon

65%

04:00

53

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 218 degree

5

km/h

Humidity icon

65%

05:00

56

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 214 degree

5

km/h

Humidity icon

67%

06:00

56

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

5

km/h

Humidity icon

72%

07:00

56

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 221 degree

5

km/h

Humidity icon

68%

08:00

59

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 220 degree

6

km/h

Humidity icon

58%

09:00

59

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 224 degree

7

km/h

Humidity icon

48%

10:00

59

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

7

km/h

Humidity icon

40%

11:00

61

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

9

km/h

Humidity icon

35%

12:00

61

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

11

km/h

Humidity icon

35%

13:00

61

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 240 degree

12

km/h

Humidity icon

39%

14:00

63

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

12

km/h

Humidity icon

41%

15:00

63

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 235 degree

13

km/h

Humidity icon

44%

16:00

63

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

13

km/h

Humidity icon

45%

17:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 232 degree

12

km/h

Humidity icon

48%

18:00

63

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

12

km/h

Humidity icon

51%

Daily forecast

|

San Mateo County air quality index (AQI⁺) forecast

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

Protect yourself from air pollution in San Mateo County

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Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in San Mateo County today?

Index

Pollen global icon

Moderate

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Moderate

50%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in San Mateo County

Health recommendations

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

Moderate

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

Moderate

50%
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

Arlington Way

16

2
The national flag of USA

Cerrito Avenue

16

3
The national flag of USA

920 Bear Gulch Road

15

4
The national flag of USA

Alberta Glen

14

5
The national flag of USA

Alexander Avenue

13

6
The national flag of USA

Dirt Alpine

12

7
The national flag of USA

265 Old Spanish Trail

10

8
The national flag of USA

480 Tunitas Creek Road

10

9
The national flag of USA

Durham Road

10

10
The national flag of USA

Alpine Road

5

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Crestline, California

113

2
The national flag of USA

Glendora, California

112

3
The national flag of USA

Redlands, California

109

4
The national flag of USA

Sioux Falls, South Dakota

107

5
The national flag of USA

Fountain Hills, Arizona

104

6
The national flag of USA

Maricopa County, Arizona

104

7
The national flag of USA

East Hartford, Connecticut

103

8
The national flag of USA

Hesperia, California

103

9
The national flag of USA

Indio, California

103

10
The national flag of USA

Calexico, California

102

History

Historic air quality graph for San Mateo County

13 AQI⁺ US
Good
18:00–19:00 Jun 09 Local time
AQI⁺ US

History

Historic air quality graph for San Mateo County

13 AQI⁺ US
Good
18:00–19:00 Jun 09 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

Arlington Way

16

2
The national flag of USA

Cerrito Avenue

16

3
The national flag of USA

920 Bear Gulch Road

15

4
The national flag of USA

Alberta Glen

14

5
The national flag of USA

Alexander Avenue

13

6
The national flag of USA

Dirt Alpine

12

7
The national flag of USA

265 Old Spanish Trail

10

8
The national flag of USA

480 Tunitas Creek Road

10

9
The national flag of USA

Durham Road

10

10
The national flag of USA

Alpine Road

5

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Crestline, California

113

2
The national flag of USA

Glendora, California

112

3
The national flag of USA

Redlands, California

109

4
The national flag of USA

Sioux Falls, South Dakota

107

5
The national flag of USA

Fountain Hills, Arizona

104

6
The national flag of USA

Maricopa County, Arizona

104

7
The national flag of USA

East Hartford, Connecticut

103

8
The national flag of USA

Hesperia, California

103

9
The national flag of USA

Indio, California

103

10
The national flag of USA

Calexico, California

102

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