Air Pollution in San Francisco: Real-time Air Quality Index and smog alert.
Pollution and air quality forecast for San Francisco. Today is Monday, May 13, 2024. The following air pollution values have been recorded for San Francisco:- ozone (O3) - 0 (Good)
- particulate matter (PM2.5) dust - 8 (Good)
What is the air quality in San Francisco today? Is the air polluted in San Francisco?. Is there smog?
How is the O3 level today in San Francisco? (ozone (O3))
0 (Good)
What is the current level of PM2.5 in San Francisco? (particulate matter (PM2.5) dust)
Today's PM2.5 level is:
8 (Good)
For comparison, the highest level of PM2.5 in San Francisco in the last 7 days was: 27 (Friday, February 2, 2024) and the lowest: 9 (Saturday, February 3, 2024).
The highest PM2.5 values were recorded: 50 (March 2020).
The lowest level of particulate matter PM2.5 pollution occurs in month: May (12).
Current data Wednesday, February 7, 2024, 8:00 AM
O3 0 (Good)
PM2,5 8 (Good)
Data on air pollution from recent days in San Francisco
index
2024-01-31
2024-02-01
2024-02-02
2024-02-03
2024-02-04
2024-02-05
2024-02-06
2024-02-07
o3
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
0
Good
pm25
23
Moderate
23
Moderate
27
Moderate
9
Good
12
Good
17
Moderate
10
Good
11
Good
data source »
Air pollution in San Francisco from November 2018 to May 2020
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
o3:ppm
0.02 (Good)
0.02 (Good)
0.03 (Good)
0.02 (Good)
0.02 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.02 (Good)
0.02 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
0.01 (Good)
pm25
12 (Good)
16 (Moderate)
50 (Unhealthy for Sensitive Groups)
27 (Moderate)
14 (Moderate)
17 (Moderate)
16 (Moderate)
15 (Moderate)
17 (Moderate)
22 (Moderate)
17 (Moderate)
14 (Moderate)
17 (Moderate)
18 (Moderate)
34 (Moderate)
33 (Moderate)
21 (Moderate)
19 (Moderate)
19 (Moderate)
data source »
MED-LAYE - Medellín, El Poblado - Tanques La Ye EPM
Wednesday, February 7, 2024, 8:00 AM
O3 0 (Good)
ozone (O3)
PM2,5 7.8 (Good)
particulate matter (PM2.5) dust
MED-LAYE - Medellín, El Poblado - Tanques La Ye EPM
index
2024-02-07
2024-02-06
2024-02-05
2024-02-04
2024-02-03
2024-02-02
2024-02-01
2024-01-31
o3
0
0.02
0.01
0.01
0.01
0.01
0.01
0.01
pm25
11
10
17
12
9.3
27
23
23
MED-LAYE - Medellín, El Poblado - Tanques La Ye EPM
2018-11 2020-05
index
2020-05
2020-04
2020-03
2020-02
2020-01
2019-12
2019-11
2019-10
2019-09
2019-08
2019-07
2019-06
2019-05
2019-04
2019-03
2019-02
2019-01
2018-12
2018-11
o3:ppm
0.02
0.02
0.03
0.02
0.02
0.01
0.01
0.01
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
pm25
12
16
50
27
14
17
16
15
17
22
17
14
17
18
34
33
21
19
19
* Pollution data source:
https://openaq.org
(Medellin)
The data is licensed under CC-By 4.0
O3 0 (Good)
PM2,5 8 (Good)
Data on air pollution from recent days in San Francisco
| index | 2024-01-31 | 2024-02-01 | 2024-02-02 | 2024-02-03 | 2024-02-04 | 2024-02-05 | 2024-02-06 | 2024-02-07 |
|---|---|---|---|---|---|---|---|---|
| o3 | 0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
0 Good |
| pm25 | 23 Moderate |
23 Moderate |
27 Moderate |
9 Good |
12 Good |
17 Moderate |
10 Good |
11 Good |
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3:ppm | 0.02 (Good) | 0.02 (Good) | 0.03 (Good) | 0.02 (Good) | 0.02 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.02 (Good) | 0.02 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) |
| pm25 | 12 (Good) | 16 (Moderate) | 50 (Unhealthy for Sensitive Groups) | 27 (Moderate) | 14 (Moderate) | 17 (Moderate) | 16 (Moderate) | 15 (Moderate) | 17 (Moderate) | 22 (Moderate) | 17 (Moderate) | 14 (Moderate) | 17 (Moderate) | 18 (Moderate) | 34 (Moderate) | 33 (Moderate) | 21 (Moderate) | 19 (Moderate) | 19 (Moderate) |
O3 0 (Good)
ozone (O3)PM2,5 7.8 (Good)
particulate matter (PM2.5) dustMED-LAYE - Medellín, El Poblado - Tanques La Ye EPM
| index | 2024-02-07 | 2024-02-06 | 2024-02-05 | 2024-02-04 | 2024-02-03 | 2024-02-02 | 2024-02-01 | 2024-01-31 |
|---|---|---|---|---|---|---|---|---|
| o3 | 0 | 0.02 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| pm25 | 11 | 10 | 17 | 12 | 9.3 | 27 | 23 | 23 |
MED-LAYE - Medellín, El Poblado - Tanques La Ye EPM
| index | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3:ppm | 0.02 | 0.02 | 0.03 | 0.02 | 0.02 | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| pm25 | 12 | 16 | 50 | 27 | 14 | 17 | 16 | 15 | 17 | 22 | 17 | 14 | 17 | 18 | 34 | 33 | 21 | 19 | 19 |