National Park Service

Air Resources






For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.

NPS » Explore Nature » Air Resources

Joshua Tree National Park

  • View From Belle Mountain
    Looking Southeast
  • Air Data
    & Weather
  • NPS Air
    Webcams
updated 05/23/2013 05:00 AM PDT
View from Belle Mountain Looking Southeast
Ozone (O3) at Black Rock Monitoring Site  updated 05/23/2013 04:00 AM PDT

O3 concentration Current Today's
Maximum		 Yesterday's
Maximum
8-hour average 63 ppb 67 ppb   71 ppb  
1-hour average 57 ppb 61 ppb   81 ppb  

*Ozone (O3) is measured in parts per billion (ppb)


AQI Ozone


Weather at Black Rock Monitoring Site updated 05/23/2013 04:00 AM PDT

Current temperature  58 F 
Yesterday's minimum temperature  61 F 
Yesterday's maximum temperature  77 F 
Current relative humidity  25 % 
Yesterday's minimum relative humidity  6 % 
Yesterday's maximum relative humidity  24 % 
Current wind speed  9 mph  
Current wind direction SW
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

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Current Air Quality »
at Black Rock
Ozone - O3
updated 05/23/2013 04:00 AM PDT
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy
Current Weather »
at Black Rock
updated 05/23/2013 04:00 AM PDT
Temperature
58 F

Humidity
25 %

Wind
SW-9 mph

Precipitation - 1 hr
0 in.

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    Last Updated: May 23, 2013