NOx and Ozone Air Quality
Monitoring Station

Today's Current
Meteorology
01/22/2021 1:00 PM
Temp
35 °F
Humidity
71 %
Wind Speed
2 mph
Wind Direction
E
Precip 1 Hour
0.00 in
Display units in: Standard »   Metric »
Data Disclaimer »
Today's Current
Meteorology
01/22/2021 1:00 PM
Temp
2 °C
Humidity
71 %
Wind Speed
1 m/s
Wind Direction
100 °
Precip 1 Hour
0.00 mm
Display units in: Standard »   Metric »
Data Disclaimer »
site location map

Location: Shamrock

Yesterday's Concentrations and Meteorology Data

Yesterday's 24-hour Meteorology
MIN MAX AVG
1-hr 1-hr 24-hr
Temperature (F) 17 35 27
Humidity (%) 65 99 86
Wind Speed (mph) 0 4 2
Precipitation (in) 0.00 0.00 Total: 0.00
Yesterday's 24-hour Concentrations
MIN MAX AVG
1-hr 1-hr 24-hr
NO2 (ppb) 0 5 2
NO (ppb) 0 1 0
8-hr 8-hr 24-hr
O3 (ppb) 29 44 36
W126 N100
O3 Summary [Details]
National Ambient Air
Quality Standards
Criteria
Pollutant
Average
Time
Maximum
Allowed
Nitrogen
  Dioxide (NO2)
Annual
1-hour
53 ppb
100 ppb
Nitrogen
  Oxide (NO)
No National Standard
Ozone (O3)
8-hour
1-hour
75 ppb
120 ppb

The Shamrock air quality monitoring instrumentation and its operation are designed to follow EPA guidelines for monitoring, including 40CFR50, 40CFR53, and 40 CFR58

Historical data can be downloaded from EPA's Air Quality System (AQS)