CDC data: Cumulative amount of Hydrogen Sulfide INCREASES 700 PERCENT in coastal Louisiana since well was 'capped' on July 15
Hourly readings in last day have averaged 15-20 times above the EPA's "safe exposure level"
Human Health Effects from Exposure to Low-Level Concentrations of Hydrogen Sulfide, Occupational Health & Safety, October 2007:
EPA set the safe exposure level at 0.00014 ppm. [.14 ppb]
Yet EPA air monitoring has constantly shown much higher levels of H2S since July and reached an astonishing 9 PPB on July 30th which is over 64 times the exposure level.



