Captain John Holder Historical MarkerLisletownBoonesboroughHootentownFort Boonesboro State ParkFort Boonesborough State ParkOld Providence Church Historical MarkerFordElkinForest GroveBecknervilleLocust Trotting Park (historical)Jackson FerryFlanaganClays FerryBoones Station State Historic SiteLyndaleColbyAthensTebbsCodell LakeBlue GrassRedhouseMorning Star HeliportHuntPinchemGreen Fields EstatesHampton ManorEagle Nest HillGovernor James Clark Historical MarkerClark Regional Medical Center HeliportClark County Courthouse Historical MarkerClark County Historical MarkerCoal Field AirportEast Broadway Cemetery Historical MarkerClark County Hemp Historical MarkerCodell AirportJordan Hill Farm AirportMill Dam HillWalnut Hill Presbyterian Church Historical Marker
Air Quality in Captain John Holder Historical Marker, United States
Pollutants in Captain John Holder Historical Marker, United States
PM10
0.15 μg/ft3
PM25
0.16 μg/ft3
NO2
2.2 ppb
SO2
1.6 ppb
CO
0.2 ppb
O3
Primary Pollutant
32.2 ppb
Low riskHigh risk
Pollen Index in Captain John Holder Historical Marker, United States
Tree
5/5
012345
Weed
0/5
012345
Grass
0/5
012345
Air Quality Forecast in Captain John Holder Historical Marker, United States
Mon, March 3
MorningNoonEveningNight
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 30 and 45.
32
34
40
37
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 no risk.
Tree
5
5
5
5
Weed
0
0
0
0
Grass
0
0
0
0
PM10
0.08 μg/ft3
0.03 μg/ft3
0.04 μg/ft3
0.06 μg/ft3
PM25
0.08 μg/ft3
0.03 μg/ft3
0.04 μg/ft3
0.06 μg/ft3
NO2
1.5 ppb
0.7 ppb
1.2 ppb
2 ppb
SO2
0.4 ppb
0.5 ppb
0.8 ppb
1.2 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
34.2 ppb
36.5 ppb
42.7 ppb
39.9 ppb