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5/20/2012 | 2am | Meraux | 8 ppb H2S | |
| 3am | Meraux | 5 ppb H2S | ||
| 4am | Meraux | 6 ppb H2S | ||
| 5am | Meraux | 4 ppb H2S | ||
| Ch_Vista | 8 ppb H2S | 
These readings are from the three air monitors in the community. The Meraux air monitor is at Joe Davies elementary school; the Ch_Vista monitor is at BlueBird Park. The Ventura Drive monitor is in Floral Estates. The Ventura Drive monitor readings are available after a 24-hour quality check.
. For Hydrogen Sulfide, EPA infers a recommended daily exposure to H2S without risk to be 1.4 ppb H2S. The World Health Organization advises ambient concentration levels of hydrogen sulfide should not exceed 5 ppb H2Swith a 30 minute averaging time. Times shown below are hourly.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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