Tag: Ozone


Ozone-The Other EPA Fast Train Approaching

While we try to figure out EPA’s new approach to regulating carbon dioxide, we should keep a very sharp eye on what they intend to do about ozone.  Believe it or not, their ozone proposal may be more far reaching than the carbon dioxide regulations. On December 17, 2014, EPA published its proposal for revising […]


EPA Annouces its Proposed NAAQS for Ozone

On November 25th, 2014, EPA announced its anticipated proposal for reducing ozone.  According to the proposed rule, the current standard of 75 parts per billion would be lowered to a range of 65 to 70 parts per billion. Agency officials said they would also take public comments on whether they should consider going even lower, […]


EPA Annouces its Proposed NAAQS for Ozone

On November 25th, 2014, EPA announced its anticipated proposal for reducing ozone.  According to the proposed rule, the current standard of 75 parts per billion would be lowered to a range of 65 to 70 parts per billion. Agency officials said they would also take public comments on whether they should consider going even lower, to […]


The Unknown in Ozone: Impacts from future National Ambient Air Quality Standard (NAAQS) for Ozone (O3)

When EPA proposes/promulgates a new NAAQS, states must evaluate ambient air monitoring data and submit recommendations to identify areas that will be non-attainment with the new NAAQS. Next, states must develop/revise State Implementation Plans (SIPs) that identify sources within their jurisdiction that are significant emission contributors to the pollutant of concern promulgated in NAAQS.  States […]