Source: http://www.science.gov/topicpages/a/air+quality+purposes.html
Timestamp: 2016-10-25 20:59:47
Document Index: 277998573

Matched Legal Cases: ['art 81', 'art 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 81', '§ 531']

air quality purposes: Topics by Science.gov
Sample records for air quality purposes
78 FR 58266 - Designation of Areas for Air Quality Planning Purposes; California; San Joaquin Valley, South...
... AGENCY 40 CFR Part 81 Designation of Areas for Air Quality Planning Purposes; California; San Joaquin... standard. DATES: The proposed rule published on August 27, 2009 (74 FR 43654) is withdrawn with respect to...-4102, israels.ken@epa.gov . SUPPLEMENTARY INFORMATION: On August 27, 2009 (74 FR 43654), EPA...
... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 81 Designation of Areas for Air Quality Planning Purposes; State of Nevada; Total Suspended Particulate AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: EPA...
77 FR 32024 - Designation of Areas for Air Quality Planning Purposes; State of Arizona; Pinal County; PM10
... air quality standards (NAAQS or ``standards'') for particulate matter (52 FR 24634), replacing total... particular air quality monitoring location. (40 CFR 58.14) However, as indicated in the proposed rule (75 FR....regulations.gov , some information may be publicly available only at the hard copy location (e.g.,...
78 FR 51 - Designation of Areas for Air Quality Planning Purposes; California; Morongo Band of Mission Indians
... following enactment of the 1977 Amendments to the CAA. See 43 FR 8962 (March 3, 1978). These designations... Basin and include it in the South Coast Air Basin. See 68 FR 57820 (October 7, 2003).\\5\\ Specifically... October 7, 2003, EPA approved California's boundary change request (68 FR 57820). \\5\\ California...
78 FR 22425 - Designation of Areas for Air Quality Planning Purposes; State of Nevada; Total Suspended Particulate
... Background On April 30, 1971 (36 FR 8186), pursuant to section 109 of the Clean Air Act (``Act'' or CAA), as... original SIP submittal later that year. See 37 FR 10842 (May 31, 1972). Generally, SIPs were to provide for... 67 FR 12474 (March 19, 2002). For the TSP NAAQS, EPA designated the following areas in Nevada...
Needle-array to Plate DBD Plasma Using Sine AC and Nanosecond Pulse Excitations for Purpose of Improving Indoor Air Quality
Zhang, Li; Yang, Dezheng; Wang, Wenchun; Wang, Sen; Yuan, Hao; Zhao, Zilu; Sang, Chaofeng; Jia, Li
In this study, needle-array to plate electrode configuration was employed to generate an atmospheric air diffuse discharge using both nanosecond pulse and sine AC voltage as excitation voltage for the purpose of improving indoor air quality. Different types of voltage sources and electrode configurations are employed to optimize electrical field distribution and improve discharge stability. Discharge images, electrical characteristics, optical emission spectra, and plasma gas temperatures in both sine AC discharge and nanosecond pulse discharge were compared and the discharge stability during long operating time were discussed. Compared with the discharge excited by sine AC voltage, the nanosecond pulsed discharge is more homogenous and stable, besides, the plasma gas temperature of nanosecond pulse discharge is much lower. Using packed-bed structure, where γ- Al2O3 pellets are filled in the electrode gap, has obvious efficacy in the production of homogenous discharge. Furthermore, both sine AC discharge and nanosecond pulse discharge were used for removing formaldehyde from flowing air. It shows that nanosecond pulse discharge has a significant advantage in energy cost. And the main physiochemical processes for the generation of active species and the degradation of formaldehyde were discussed. PMID:27125663
In this study, needle-array to plate electrode configuration was employed to generate an atmospheric air diffuse discharge using both nanosecond pulse and sine AC voltage as excitation voltage for the purpose of improving indoor air quality. Different types of voltage sources and electrode configurations are employed to optimize electrical field distribution and improve discharge stability. Discharge images, electrical characteristics, optical emission spectra, and plasma gas temperatures in both sine AC discharge and nanosecond pulse discharge were compared and the discharge stability during long operating time were discussed. Compared with the discharge excited by sine AC voltage, the nanosecond pulsed discharge is more homogenous and stable, besides, the plasma gas temperature of nanosecond pulse discharge is much lower. Using packed-bed structure, where γ- Al2O3 pellets are filled in the electrode gap, has obvious efficacy in the production of homogenous discharge. Furthermore, both sine AC discharge and nanosecond pulse discharge were used for removing formaldehyde from flowing air. It shows that nanosecond pulse discharge has a significant advantage in energy cost. And the main physiochemical processes for the generation of active species and the degradation of formaldehyde were discussed.
Needle-array to Plate DBD Plasma Using Sine AC and Nanosecond Pulse Excitations for Purpose of Improving Indoor Air Quality.
40 CFR 81.93 - Hampton Roads Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Wight, James City, Nansemond, Southampton, York. Cities—Chesapeake, Franklin, Hampton, Newport...
40 CFR 81.145 - State Capital Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... City, Chesterfield, Dinwiddie, Goochland, Greensville, Hanover, Henrico, New Kent, Powhatan,...
Poor air quality in homes of Medicare recipients with diabetes.
Morin, Philip C; Rosenbaum, Paula F; Abraham, Jerrold L; Weinstock, Ruth S
Poor air quality has been associated with chronic illness such as diabetes. This can be of particular importance for older adults with diabetes and other chronic conditions who spend most of their time indoors. The purpose of this study was to assess home air quality and residents' awareness and concerns about air quality in rural underserved areas of upstate New York. Implications for home care clinicians are discussed. PMID:24887272
40 CFR 81.28 - Metropolitan Baltimore Intrastate Air Quality Control Region.
... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of... Arundel County, Baltimore City, Baltimore County, Carroll County, Harford County, Howard County....
Incorporating principal component analysis into air quality model evaluation
The efficacy of standard air quality model evaluation techniques is becoming compromised as the simulation periods continue to lengthen in response to ever increasing computing capacity. Accordingly, the purpose of this paper is to demonstrate a statistical approach called Princi...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false South Central Coast Intrastate Air Quality Control Region. 81.166 Section 81.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.166...
40 CFR 81.121 - Four Corners Interstate Air Quality Control Region.
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Four Corners Interstate Air Quality Control Region. 81.121 Section 81.121 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.121 Four...
40 CFR 81.241 - Southwestern Mountains-Augustine Plains Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Southwestern Mountains-Augustine Plains Intrastate Air Quality Control Region. 81.241 Section 81.241 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Southwestern Mountains-Augustine Plains Intrastate Air Quality Control Region. 81.241 Section 81.241 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Four Corners Interstate Air Quality Control Region. 81.121 Section 81.121 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.121 Four...
40 CFR 81.83 - Albuquerque-Mid Rio Grande Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Albuquerque-Mid Rio Grande Intrastate Air Quality Control Region. 81.83 Section 81.83 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.239 - Upper Rio Grande Valley Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Upper Rio Grande Valley Intrastate Air Quality Control Region. 81.239 Section 81.239 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Albuquerque-Mid Rio Grande Intrastate Air Quality Control Region. 81.83 Section 81.83 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Upper Rio Grande Valley Intrastate Air Quality Control Region. 81.239 Section 81.239 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Metropolitan Chicago Interstate Air Quality Control Region. 81.14 Section 81.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Metropolitan Chicago Interstate Air Quality Control Region. 81.14 Section 81.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Chicago Interstate Air Quality Control Region. 81.14 Section 81.14 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.252 - Northwest Kansas Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Northwest Kansas Intrastate Air Quality Control Region. 81.252 Section 81.252 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.85 - Metropolitan Sioux Falls Interstate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Metropolitan Sioux Falls Interstate Air Quality Control Region. 81.85 Section 81.85 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Portland Interstate Air Quality Control Region. 81.51 Section 81.51 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.51 Portland...
... 40 Protection of Environment 18 2014-07-01 2014-07-01 false Allegheny Intrastate Air Quality Control Region. 81.230 Section 81.230 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.230...
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Allegheny Intrastate Air Quality Control Region. 81.230 Section 81.230 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.230...
40 CFR 81.78 - Metropolitan Portland Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Metropolitan Portland Intrastate Air Quality Control Region. 81.78 Section 81.78 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.182 - Northwest Maine Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Northwest Maine Intrastate Air Quality Control Region. 81.182 Section 81.182 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.182...
40 CFR 81.90 - Androscoggin Valley Interstate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Androscoggin Valley Interstate Air Quality Control Region. 81.90 Section 81.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.81 - Merrimack Valley-Southern New Hampshire Interstate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Merrimack Valley-Southern New Hampshire Interstate Air Quality Control Region. 81.81 Section 81.81 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
40 CFR 81.237 - Northeast Georgia Intrastate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Northeast Georgia Intrastate Air Quality Control Region. 81.237 Section 81.237 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.18 - Metropolitan St. Louis Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan St. Louis Interstate Air Quality Control Region. 81.18 Section 81.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Miles City Intrastate Air Quality Control Region. 81.170 Section 81.170 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.170 Miles...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Black Hills-Rapid City Intrastate Air Quality Control Region. 81.214 Section 81.214 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Baltimore Intrastate Air Quality Control Region. 81.28 Section 81.28 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.31 - Metropolitan Providence Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Providence Interstate Air Quality Control Region. 81.31 Section 81.31 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Sioux City Interstate Air Quality Control Region. 81.86 Section 81.86 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Hampton Roads Intrastate Air Quality Control Region. 81.93 Section 81.93 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.93 Hampton...
40 CFR 81.115 - Northwest Nevada Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Northwest Nevada Intrastate Air Quality Control Region. 81.115 Section 81.115 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.57 - Eastern Tennessee-Southwestern Virginia Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Eastern Tennessee-Southwestern Virginia Interstate Air Quality Control Region. 81.57 Section 81.57 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
40 CFR 81.184 - Northwestern Connecticut Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Northwestern Connecticut Intrastate Air Quality Control Region. 81.184 Section 81.184 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.183 - Eastern Connecticut Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Eastern Connecticut Intrastate Air Quality Control Region. 81.183 Section 81.183 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.25 - Metropolitan Kansas City Interstate Air Quality Control Region.
... 40 Protection of Environment 17 2011-07-01 2011-07-01 false Metropolitan Kansas City Interstate... AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.25 Metropolitan Kansas City Interstate Air Quality...
40 CFR 81.114 - Augusta (Georgia)-Aiken (South Carolina) Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Augusta (Georgia)-Aiken (South Carolina) Interstate Air Quality Control Region. 81.114 Section 81.114 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
40 CFR 81.144 - Northeastern Virginia Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Northeastern Virginia Intrastate Air Quality Control Region. 81.144 Section 81.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.143 - Central Virginia Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Central Virginia Intrastate Air Quality Control Region. 81.143 Section 81.143 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.143...
40 CFR 81.26 - Hartford-New Haven-Springfield Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Hartford-New Haven-Springfield Interstate Air Quality Control Region. 81.26 Section 81.26 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Kansas City Interstate Air Quality Control Region. 81.25 Section 81.25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.19 - Metropolitan Boston Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Boston Intrastate Air Quality Control Region. 81.19 Section 81.19 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Metropolitan Kansas City Interstate... AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.25 Metropolitan Kansas City Interstate Air Quality...
... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Metropolitan Kansas City Interstate... AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.25 Metropolitan Kansas City Interstate Air Quality...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Billings Intrastate Air Quality Control Region. 81.88 Section 81.88 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.88 Billings...
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Black Hills-Rapid City Intrastate Air Quality Control Region. 81.214 Section 81.214 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.102 - Metropolitan Quad Cities Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Metropolitan Quad Cities Interstate Air Quality Control Region. 81.102 Section 81.102 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
... 40 Protection of Environment 18 2014-07-01 2014-07-01 false Metropolitan Kansas City Interstate... AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.25 Metropolitan Kansas City Interstate Air Quality...
40 CFR 81.142 - Central Massachusetts Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Central Massachusetts Intrastate Air Quality Control Region. 81.142 Section 81.142 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.58 - Columbus (Georgia)-Phenix City (Alabama) Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Columbus (Georgia)-Phenix City (Alabama) Interstate Air Quality Control Region. 81.58 Section 81.58 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality...
40 CFR 81.146 - Valley of Virginia Intrastate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Valley of Virginia Intrastate Air Quality Control Region. 81.146 Section 81.146 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.146...
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false State Capital Intrastate Air Quality Control Region. 81.145 Section 81.145 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.145...
... 40 Protection of Environment 18 2012-07-01 2012-07-01 false Upper Rio Grande Valley Intrastate Air Quality Control Region. 81.239 Section 81.239 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions §...
40 CFR 81.98 - Burlington-Keokuk Interstate Air Quality Control Region.
... 40 Protection of Environment 18 2013-07-01 2013-07-01 false Burlington-Keokuk Interstate Air Quality Control Region. 81.98 Section 81.98 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.98...
... 40 Protection of Environment 18 2014-07-01 2014-07-01 false South Central Coast Intrastate Air Quality Control Region. 81.166 Section 81.166 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.166...
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... intersected by a line common to the northern boundary of Township No. 6, Phillips Town, Salem Township,...
5 CFR 531.503 - Purpose of quality step increases.
... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Purpose of quality step increases. 531.503 Section 531.503 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PAY UNDER THE GENERAL SCHEDULE Quality Step Increases § 531.503 Purpose of quality step increases....
Air quality in the Carlsbad cavern
Cheng, Yung-Seng; Chen, Tou-Rong; Wasiolek, P.T.
The air quality in the Carlsbad Cavern has been investigated, but there are no reports on radon progeny and aerosols. The purpose of this experiment was to determine the activity size distribution of radon progeny and the air exchange rate inside the Cavern. Teams from ITRI and New Mexico Institute of Mining and Technology (NMT) conducted the field study in July 1994. The ITRI graded diffusion battery (GDB) was used to determine the activity size distribution, progeny concentration, equilibrium factor, and unattached fraction of the radon progeny. The design, calibration, and performance of the GDB have been described. For this study, each stage of the GDB contained one stainless steel screen, with the mesh sizes arranged in a series of 30, 50, 145, 200, and 635 mesh from the air inlet to the outlet. A 47-nm type A/E glass fiber filter was used to collect all particles that penetrated the screens. The flow rate was 5 L/min. The average ventilation rate in the cavern is 0.0026 V/hr. Our results showed that the cavern atmosphere may be quite different from other underground environments. The atmosphere in the summer is stable and relatively free of airborne particles, partly due to the extremely slow air exchange rate.
40 CFR 81.105 - South Central Pennsylvania Intrastate Air Quality Control Region.
... AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES... Region. The South Central Pennsylvania Intrastate Air Quality Control Region consists of the territorial... territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C....
40 CFR 81.149 - Northern Coastal Plain Intrastate Air Quality Control Region.
... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of... Northern Coastal Plain Intrastate Air Quality Control Region (North Carolina) consists of the territorial... territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C....
40 CFR 81.171 - Missoula Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Air Quality Control Region (Montana) consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all...
40 CFR 81.154 - Eastern Shore Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Intrastate Air Quality Control Region (Maryland) consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of...
40 CFR 81.152 - Southern Coastal Plain Intrastate Air Quality Control Region.
... (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of... Southern Coastal Plain Intrastate Air Quality Control Region (North Carolina) consists of the territorial... territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C....
40 CFR 81.168 - Great Falls Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Intrastate Air Quality Control Region (Montana) consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of...
40 CFR 81.129 - Hudson Valley Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Intrastate Air Quality Control Region (New York) consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of...
40 CFR 81.151 - Sandhills Intrastate Air Quality Control Region.
...) AIR PROGRAMS (CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air... Air Quality Control Region (North Carolina) consists of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of...