Nearby locations
Washington, DC, District of Columbia, United States
West End, District of Columbia, United States
Judiciary Square, District of Columbia, United States
Nearby popular places
National Christmas Tree, United States
Butt-Millet Memorial, United States
Rush Barracks (historical), United States

Air Quality in Washington, DC, District of Columbia, United States

Pollutants in Washington, DC, United States

PM10
0.45 μg/ft3
PM25
Primary Pollutant
0.44 μg/ft3
NO2
13.19 ppb
SO2
5.5 ppb
CO
5 ppb
O3
20.38 ppb
Low riskHigh risk

Pollen Index in Washington, DC, United States

Tree
0/5
012345
Weed
2/5
012345
Grass
1/5
012345

Air Quality Forecast in Washington, DC, United States

Mon, September 26
MorningNoonEveningNight
Next day
Next day
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 30 and 95.

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 18 and 38.

AQI24
AQI21
AQI24
AQI28
Next day
Pollen

Tree pollen on this day is expected to have no risk. There's high risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree pollen on this day is expected to have no risk. There's high risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

1
0
1
1

Grass

1
1
1
1
Next day
PM10
0.14 μg/ft3
0.17 μg/ft3
0.09 μg/ft3
0.07 μg/ft3
PM25
0.10 μg/ft3
0.12 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
NO2
4.39 ppb
2.28 ppb
1.19 ppb
2.27 ppb
SO2
0.84 ppb
0.9 ppb
0.36 ppb
0.2 ppb
CO
0.13 ppb
0.11 ppb
0.11 ppb
0.11 ppb
O3
23.58 ppb
22.52 ppb
28.23 ppb
28.34 ppb
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 18 and 38.

AQI21
AQI24
AQI28
AQI23
Pollen

Tree pollen on this day is expected to have no risk. There's high risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

0
1
1
1

Grass

1
1
1
1
PM10
0.17 μg/ft3
0.09 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
PM25
0.12 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
NO2
2.28 ppb
1.19 ppb
2.27 ppb
2.53 ppb
SO2
0.9 ppb
0.36 ppb
0.2 ppb
0.19 ppb
CO
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
O3
22.52 ppb
28.23 ppb
28.34 ppb
24.21 ppb
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 17 and 34.

AQI21
AQI24
AQI29
AQI22
Pollen

Tree pollen on this day is expected to have no risk. There's low risk of weed pollen, and as for grass pollen, this day is expected to have no risk.

Tree

0
0
0
0

Weed

0
1
1
1

Grass

0
1
1
1
PM10
0.11 μg/ft3
0.09 μg/ft3
0.10 μg/ft3
0.13 μg/ft3
PM25
0.08 μg/ft3
0.06 μg/ft3
0.07 μg/ft3
0.09 μg/ft3
NO2
1.4 ppb
0.7 ppb
3.08 ppb
5.68 ppb
SO2
0.24 ppb
0.13 ppb
0.15 ppb
0.22 ppb
CO
0.1 ppb
0.09 ppb
0.1 ppb
0.12 ppb
O3
21.72 ppb
28.73 ppb
29.3 ppb
22.84 ppb