Nearby locations
Portola, California, United States
Delleker, California, United States
Iron Horse, California, United States
Nearby popular places
Portola City Park, United States
Beckwourth Peak, United States
Nervino Airport, United States

Air Quality in Portola, California, United States

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Pollutants in Portola, United States

PM10
12.8 μg/m3
PM25
3.5 μg/m3
NO2
4.6 ppb
SO2
0.2 ppb
CO
0.1 ppb
O3
Primary Pollutant
26.6 ppb
Low riskHigh risk

Pollen Index in Portola, United States

Tree
0/5
012345
Weed
0/5
012345
Grass
0/5
012345

Air Quality Forecast in Portola, United States

Sat, September 19
MorningNoonEveningNight
Next day
Next day
AQI

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 24 and 59.

On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 43 and 61.

36
56
59
61
Next day
Pollen

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

0
0
0
0

Grass

0
0
0
0
Next day
PM10
12.2 μg/m3
11.4 μg/m3
14.9 μg/m3
16.1 μg/m3
PM25
4.9 μg/m3
10 μg/m3
13.1 μg/m3
14.3 μg/m3
NO2
0.6 ppb
1.9 ppb
6.7 ppb
7.7 ppb
SO2
0.2 ppb
0.4 ppb
0.6 ppb
0.5 ppb
CO
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
38.6 ppb
61.6 ppb
51.8 ppb
46.4 ppb
AQI

On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 43 and 61.

61
44
52
56
Pollen

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

0
0
0
0

Grass

0
0
0
0
PM10
16.1 μg/m3
6.8 μg/m3
8.7 μg/m3
13.9 μg/m3
PM25
14.3 μg/m3
5 μg/m3
7 μg/m3
11.8 μg/m3
NO2
7.7 ppb
0.3 ppb
1.5 ppb
6.8 ppb
SO2
0.5 ppb
0.1 ppb
0.3 ppb
0.5 ppb
CO
0.2 ppb
0.1 ppb
0.2 ppb
0.2 ppb
O3
46.4 ppb
47.9 ppb
56 ppb
47.1 ppb
AQI

On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 46 and 60.

60
48
55
56
Pollen

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

0
0
0
0

Grass

0
0
0
0
PM10
16.3 μg/m3
6.3 μg/m3
9.7 μg/m3
13.4 μg/m3
PM25
13.6 μg/m3
5.1 μg/m3
8.2 μg/m3
11.5 μg/m3
NO2
6.1 ppb
0.3 ppb
1.4 ppb
7.8 ppb
SO2
0.5 ppb
0.1 ppb
0.3 ppb
0.4 ppb
CO
0.2 ppb
0.1 ppb
0.2 ppb
0.2 ppb
O3
47.5 ppb
51.3 ppb
60.6 ppb
43.8 ppb
AQI

On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 51 and 60.

60
0
0
0
Pollen

The overall pollen forecast for this day shows no significant pollen. Tree pollen on this day is expected to have no risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
-
Not Available
-
Not Available
-
Not Available

Weed

0
-
Not Available
-
Not Available
-
Not Available

Grass

0
-
Not Available
-
Not Available
-
Not Available
PM10
16 μg/m3
N/A
N/A
N/A
PM25
13.7 μg/m3
N/A
N/A
N/A
NO2
9.3 ppb
N/A
N/A
N/A
SO2
0.4 ppb
N/A
N/A
N/A
CO
0.2 ppb
N/A
N/A
N/A
O3
34 ppb
N/A
N/A
N/A