Old Spanish Trail

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Air quality near Old Spanish Trail, San Mateo County

Air quality index (AQI⁺) and PM2.5 air pollution near Old Spanish Trail, San Mateo County • 63 Followers • 14:00, Sep 30

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

6.3 µg/m³

30°

7 km/h

27 %

Data source: PurpleAir

Hourly forecast

Old Spanish Trail, San Mateo County air quality index (AQI⁺) forecast

Now

30°

km/h

27%

15:00

30°

km/h

26%

16:00

30°

km/h

28%

17:00

29°

km/h

32%

18:00

27°

km/h

40%

19:00

24°

km/h

49%

20:00

23°

km/h

46%

21:00

23°

km/h

47%

22:00

22°

km/h

52%

23:00

21°

km/h

53%

Thu

00:00

21°

km/h

52%

01:00

21°

km/h

53%

02:00

21°

km/h

50%

03:00

21°

km/h

47%

04:00

21°

km/h

46%

05:00

21°

km/h

43%

06:00

21°

km/h

39%

07:00

21°

km/h

37%

08:00

21°

km/h

35%

09:00

23°

km/h

32%

10:00

25°

km/h

30%

11:00

27°

km/h

31%

12:00

28°

km/h

31%

13:00

30°

km/h

30%

14:00

30°

km/h

32%

15:00

30°

km/h

35%

16:00

29°

km/h

36%

17:00

28°

km/h

39%

18:00

26°

km/h

46%

19:00

23°

km/h

56%

20:00

23°

km/h

45%

21:00

22°

km/h

41%

22:00

22°

km/h

40%

23:00

21°

km/h

37%

Fri

00:00

21°

km/h

33%

01:00

22°

km/h

32%

02:00

22°

km/h

33%

03:00

21°

km/h

30%

04:00

21°

km/h

28%

05:00

21°

km/h

30%

06:00

21°

km/h

29%

07:00

21°

km/h

30%

08:00

22°

km/h

30%

09:00

23°

km/h

27%

10:00

25°

km/h

24%

11:00

28°

km/h

22%

12:00

30°

km/h

22%

13:00

31°

km/h

24%

14:00

30°

km/h

29%

15:00

30°

km/h

29%

16:00

30°

km/h

30%

17:00

29°

km/h

33%

18:00

25°

km/h

36%

19:00

20°

km/h

49%

20:00

19°

km/h

50%

21:00

19°

km/h

50%

22:00

19°

km/h

49%

23:00

18°

km/h

52%

Sat

00:00

17°

km/h

52%

01:00

17°

km/h

51%

02:00

17°

km/h

48%

03:00

17°

km/h

48%

04:00

17°

km/h

47%

05:00

17°

km/h

47%

06:00

17°

km/h

46%

07:00

17°

km/h

47%

08:00

19°

km/h

43%

09:00

24°

km/h

32%

10:00

28°

km/h

25%

11:00

30°

km/h

20%

12:00

32°

km/h

17%

13:00

33°

km/h

16%

Daily forecast

Old Spanish Trail, San Mateo County air quality index (AQI⁺) forecast

Today

30°

20°

km/h

35%

Thu

30°

21°

km/h

37%

Fri

31°

19°

km/h

33%

Air pollutants

What is the current air quality near Old Spanish Trail?

PM2.5 concentration is currently 1.3 times the World Health Organization annual PM2.5 guideline value.

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time Old Spanish Trail, San Mateo County air pollution map

Pollen

What is the pollen count in Old Spanish Trail today?

Index

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

Pollen

What is the pollen count in Old Spanish Trail today?

Index

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for Old Spanish Trail

35 AQI⁺ US

Good

13:00–14:00 Sep 30

AQI⁺ US

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Most polluted locations near Old Spanish Trail, San Mateo County

Worldwide AQI⁺ ranking

Station ranking

Real-time Old Spanish Trail AQI⁺ station ranking

#	Stations	AQI⁺ US
1	Belle Roche Court	39
2	Arlington Way	36
3	Burlingame Hills	36
4	Alexander Avenue	35
5	920 Bear Gulch Road	33
6	265 Old Spanish Trail	32
7	Alpine Road	28
8	Dirt Alpine	28
9	480 Tunitas Creek Road	17
10	Bear Gulch Road	17

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	New Canaan, Connecticut	217
2	El Portal, California	154
3	Cobb County, Georgia	102
4	Avenal, California	99
5	Wilson County, Tennessee	88
6	Washington County, Kentucky	85
7	Clovis, California	83
8	Merced, California	80
9	Madera, California	79
10	Modesto, California	78