EPA Policy Assessment for the Review of the Ozone NAAQS, Final Report - EPA staff 597-page report. The current O3 standards established in 2008 are 75 ppb, and a secondary identical to the primary standard. Staff reaches the overall conclusion that the available health evidence and exposure/risk information call into question the adequacy of the public health protection provided by the current standard.
- EPA staff recommends a health protective standard that ranges between 60 to 70 parts per billion.
- New Ozone Standard Would Squelch Growth - U.S. Chamber: EPA staffers recommended a lower standard despite ozone levels declining by 25% over the last three decades.
- NAM: New EPA Ozone Regulations Could Be Costliest in U.S. History
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