Catherine KnobPeach Bottom MountainCheek MountainPine ForkBetsy PeakFender MountainNew HopeWhiteheadSheep RockStratfordFodder StackFurchesElk KnobBlue Ridge Parkway Milepost 239Laurel SpringsDoughton Recreation AreaMount ZionTwin OaksAlleghany CountyNew River Country ClubScottvilleNew HavenPedenFranks KnobSpartaPine SwampFlat Rock KnobLittle Grandfather MountainUpper MountainTransouThurmond Chatham Wildlife Management AreaTopiaBlue Ridge Parkway Milepost 235Turkey Cove PondMahogany Rock MountainPiney CreekDoughton MountainKings CreekOre KnobChestnut Hill
Air Quality in Catherine Knob, United States
Pollutants in Catherine Knob, United States
PM10
0.53 μg/ft3
PM25
Primary Pollutant
0.41 μg/ft3
NO2
8.69 ppb
SO2
6.19 ppb
CO
5.19 ppb
O3
42.69 ppb
Low riskHigh risk
Pollen Index in Catherine Knob, United States
Tree
0/5
012345
Weed
0/5
012345
Grass
0/5
012345
Air Quality Forecast in Catherine Knob, United States
Fri, May 24
MorningNoonEveningNight
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 33 and 80.
36
54
79
62
Pollen
Tree pollen on this day is expected to have very high risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have high risk.
Tree
0
5
5
5
Weed
0
0
0
0
Grass
1
3
4
2
PM10
0.32 μg/ft3
0.38 μg/ft3
0.44 μg/ft3
0.40 μg/ft3
PM25
0.23 μg/ft3
0.27 μg/ft3
0.31 μg/ft3
0.28 μg/ft3
NO2
1.35 ppb
0.7 ppb
1.41 ppb
2.94 ppb
SO2
0.37 ppb
1.12 ppb
0.68 ppb
0.41 ppb
CO
0.18 ppb
0.15 ppb
0.16 ppb
0.2 ppb
O3
27.77 ppb
59.94 ppb
62.98 ppb
53.97 ppb