Two commenters noted that “regional consistency” is not a scientific purpose and isn’t needed for making vintage dog schnauzer company bath soap wash your paws poster changes to the O3 seasons. One commenter famous that important geographical,
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issues that states with historically essential upwind and downwind sites in the Ozone Transport Region is probably not required to develop an EMP since these websites could be in states which might be attaining the O3 NAAQS. One commenter suggested that “the EPA consider the whole OTR when designing a PAMS network somewhat than pockets of nonattainment areas within the region.” The EPA agrees that the reduction of websites in the OTR is a potential concern and that many essential current PAMS sites would not be a part of the required PAMS sites primarily based on the proposed community design. As noted by a number of vintage dog schnauzer company bath soap wash your paws poster commenters, the EPA supposed the state directed EMPs to give states flexibility in determining knowledge wanted to grasp local O3 formation, including transport within the Northeast. However, the EPA also agrees that as proposed many states in the OTR wouldn’t be required to develop EMPs and, subsequently, may not be supplied PAMS assets. To address these issues and guarantee sufficient community protection within the OTR, the EPA is adding a requirement that all states within the OTR develop and implement an EMP no matter O3 attainment standing. This change will assist make sure that an EMP appropriate for the entire OTR can be implemented. The unique necessities referred to as for two to five mounted websites per PAMS space relying on the world’s population. Four kinds of PAMS websites had been recognized together with upwind , most precursor emission price , maximum O3 concentration , and extreme downwind websites. Each PAMS website was required to measure O3, nitrogen oxide , NO2, speciated VOCs, chosen carbonyl compounds, and selected meteorological parameters.
In addition, higher air meteorological monitoring was required at one website in each PAMS area. Detailed state-by-state technical data has been placed within the docket to doc the idea for the EPA’s decision on every state. This info contains state-by-state maps and variety of days that had been ≥ 0.060 ppm; distribution charts of the number of days that had been ≥ 0.060 ppm by month and state; and detailed information concerning AQS web site IDs, dates and concentrations of all occurrences of the eight-hour daily most of a minimum of zero.060 ppm between 2010 and 2013. Summaries have also been ready for every state including the previous and proposed O3 monitoring seasons. The EPA Regional Administrators have beforehand permitted deviations from the required O3 monitoring seasons through rulemakings (sixty four FR 3028, January 20, 1999; 67 FR 57332, September 10, 2002; and sixty nine FR 52836, August 30, 2004). The current ambient monitoring rule, in paragraph 4.1 of forty CFR half 58, Appendix D , allows the EPA Regional Administrators to approve modifications to the O3 monitoring season with out rulemaking. The EPA is retaining the rule language permitting such deviations from the required O3 monitoring seasons without rulemaking. In the finalized revision to paragraph four.1 of 40 CFR half fifty eight, Appendix D, the EPA is clarifying the minimal issues that must be taken under consideration when reviewing requests, and clarifying that changes to the O3 seasons finalized on this rule revoke all beforehand permitted seasonal deviations. The EPA clarifies that every one O3 season waivers might be revoked when this last rule becomes efficient. We encourage monitoring agencies with present waivers to interact their EPA Regions as quickly as possible to gauge whether new or continued waivers are appropriate given the extent of the revised O3 NAAQS.