naaqs update
DESCRIPTION
NAAQS UPDATE. SIP Steering Committee January 13, 2011. Ozone. 3/2008 - EPA issued primary standard of 0.075 ppm and a secondary standard identical to primary 3/2009 – States submitted designation recommendations (MA - nonattainment) EPA has not taken action to finalize designations. - PowerPoint PPT PresentationTRANSCRIPT
NAAQS UPDATE
SIP Steering CommitteeJanuary 13, 2011
Ozone
• 3/2008 - EPA issued primary standard of 0.075 ppm and a secondary standard identical to primary
• 3/2009 – States submitted designation recommendations (MA - nonattainment)
• EPA has not taken action to finalize designations
Ozone Litigation • May 2008 - states, environmental and industry
groups filed petitions for review of the 2008 primary and secondary standards
• March 2009- New administration asked for stay of litigation so EPA could determine whether standards should be reconsidered
• Court directed EPA to notify it by September 16, 2009 of the action it would take and the schedule for action
• September 16, 2009 – EPA Administrator announced will reconsider the 2008 standards
Ozone Reconsideration
• EPA’s reconsideration is based on concerns that the 2008 NAAQS revisions is not protective enough
• During 2008 review, Clean Air Scientific Advisory Committee (CASAC) unanimously recommended a primary standard in the range of 0.060 ppm to 0.070 ppm and a distinct secondary standard to protect vegetation
• CASAC reiterated its recommendation following issuance of the .075 primary standard and a secondary standard identical to the primary standard
Ozone Reconsideration
• January 2010 - EPA issued a proposed revision to the NAAQS stating that a final rule would be issued by August 31, 2010
• Proposed a primary range as CASAC recommended – between 0.060 – 0.070 ppm -and a separate secondary standard
• Final rule now delayed to July 2011
Nitrogen Dioxide (NO2)
• January 2010 - EPA revised the existing annual NO2 standard of 53 parts per billion (ppb) adopted in 1971. Added a new hourly NO2 standard of 100 ppb
• States must submit recommendations for designation under the new 1-hour standard by January 22, 2011
MA NO2 Recommendation
• Existing Massachusetts NO2 monitors (11) show concentrations well below the new 1-hour 100 ppb standard
• EPA is requiring that states place new monitors near major roads to measure peak, short-term concentrations.
• MassDEP will have to install 4-5 new NO2 monitors
MA NO2 Recommendation
• Because existing monitors do not meet the near-roadway criterion, cannot support a recommendation of "attainment"
• MA recommendation will be “unclassifiable” (if approved by Governor)
• January 2012 - EPA intends to designate most areas as "unclassifiable"
Final/Revised NO2 Designations
• States have until January 1, 2013, to have the new near-road monitors operational
• EPA plans to issue revised designations after 2015 based on 3-years of data from the new monitors
Lead NAAQS
• October 2008 - EPA strengthened the lead NAAQS
• October 2009 – MA recommended designations of attainment for Suffolk County and “unclassifiable” for remainder of the state
• MA Recommendation based on data from one monitor in Boston. No lead monitoring elsewhere in MA for nearly two decades
Lead Monitoring• 2008 NAAQS - required that by 1/2011 states operate
1 monitor at each source that emits 1 or more tons per year (tpy) and 1 monitor in each urban area with a population equal to or greater than 500,000
• December 2010 – EPA changed the emissions monitoring threshold to 0.5 tpy for industrial sources (none in MA)
• EPA maintained 1.0 tpy threshold for airports, but is requiring a 1-year monitoring study at 15 additional airports to evaluate lead emissions at airports emitting more than 0.5 tpy, but less than 1 tpy
• Nantucket Memorial Airport listed as study site
Lead Monitoring
• EPA also changed non-source-oriented monitoring by only requiring lead monitoring at NCore sites in CBSAs with a popultion of 500,000 people or more.
• January 2011 – MassDEP measuring lead using low-volume PM10 samples from the monitors at Boston NCore site and in Springfield
• Discussing with EPA plan for study monitoring at Nantucket airport