Current Ozone and Weather Data in National Parks
Joshua Tree National Park - Black Rock, CA
Portable Ozone Monitor
| Yesterday's Data | Data Timelines | Ozone Health Advisory |
|---|
| Ozone Thursday May 23, 2013 | ||
|---|---|---|
| Hour Ending (Local Time) |
1-Hour Average (parts per billion) |
8-Hour Average (parts per billion) |
| 12 AM | 63 | -- |
| 1 AM | 60 | -- |
| 2 AM | 60 | -- |
| 3 AM | 57 | -- |
| 4 AM | 57 | -- |