 | 2005 - 892 pages
...section. The EPA has also added national ambient air quality standards for fine particulate matter measured as particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers (PM2.5). Accordingly, area designations for PM2.5 are included in the lists in subpart... | |
 | 2000 - 852 pages
...of bringing about attainment of the National ambient air quality standards (NAAQS) for partioulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10). The Implementation plan was submitted by the State to satisfy certain Federal Clean Air Act requirements... | |
 | 1989 - 884 pages
...ATMOSPHERE 1.0 Applicability. 1.1 This method provides for the measurement of the mass concentration of particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PMio) In ambient air over a 24hour period for purposes of determining attainment and maintenance of... | |
 | 1998 - 624 pages
...Plnehurst, Ш, for the purpose of about the attainment of the national ambient air quality standards for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers. This submlttal Includes an additional area In Shoshone County adjacent to the City of Plnehurst which... | |
 | 1997 - 740 pages
...purpose of bringing about the attainment of the National Ambient Air Quality Standards for participate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM) in the Wayne County moderate PM nonattainment area. (i) Incorporation by reference. (A) Consent... | |
 | 2000 - 600 pages
...a. The particulate matter NAAQS, promulgated on July 1, 1987 (52 FR 24634), includes only particles with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10). EPA promulgated regulations for PSD increments measured as PM-10 on June 3, 1993 (58 FR 31621), which... | |
 | 2001 - 912 pages
...§52.21 for the pollutants identified in this paragraph as well as particulate matter, but not for particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 microns (PM;, 5) regulated as PM2 5; however, the preconstruction review requirements of §52.21.... | |
 | 2001 - 554 pages
...and secondary standards, particulate matter shall be measured in the ambient air as PMio (particles with an aerodynamic diameter less than or equal to a nominal 10 micrometers) by: (1) A reference method based on appendix J and designated in accordance with part 53 of this chapter,... | |
 | 1998 - 372 pages
...implementation plan, approved or promulgated pursuant to section 110 of the Clean Air Act. PMu means partlculate matter with an aerodynamic diameter less than or equal to a nominal 2.5 micrometers as measured by a reference method based on 40 CFR part 50, Appendix L, and designated... | |
 | 1998 - 528 pages
...this chapter are met. Particulate matter is measured in the ambient air as РМю and PM2j (particles with an aerodynamic diameter less than or equal to a nominal 10 and 2.5 micrometers, respectively) by a reference method based on appendix M of this part for PMio... | |
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VOC" means volatile organic compound, as defined by the Administrator. (t) PM-10.— The term "PM-10" means particulate matter with an aerodynamic diameter less than or equal to a nominal ten micrometers, as measured by such method as the Administrator... 
