Casper Mobile

NOTICE The Casper Mobile air monitoring station has completed its one year study to characterize the ambient air in populated areas near refineries. This station will be decommissioned on or around January 22, 2018. Please continue to visit for the possible future location of this mobile station and the Casper Gaseous station ( for ambient air monitoring in Casper, WY after the decommission date.
Air Quality Information
1 Hour Average
39 ppb
8 Hour Rolling Average
39 ppb
Nitrogen Dioxide
1 Hour Average
0 ppb
Particulate Matter PM10
24 Hour Rolling Average
2 µg/m 3
Particulate Matter PM2.5
24 Hour Rolling Average
1 µg/m 3
Sulfur Dioxide
1 ppb
Loading video...

Temperature 49 o F
Relative Humidity 28 %
Wind Speed 12 mph
Wind Direction W
Yesterday's Precipitation 0.02 in
Ideal Conditions
Quick Facts

  • The Casper Monitor began operating November 2016.
  • The monitoring objective of the Casper Monitor is to characterize ambient air in populated areas near refineries.
  • The Casper Monitor is part of the Air Quality Division’s mobile monitoring fleet. The fleet consists of three (3) mobile monitoring stations which operate at chosen locations for approximately one year.
  • In response to citizen concerns and Air Quality Division data needs, the mobile monitoring fleet will be sited at each of Wyoming’s four refineries for at least one year to monitor SO2 in populated areas.

Last Updated on 1/19/2018 12:52:14 AM