Source: http://www4.law.cornell.edu/cfr/text/40/50?quicktabs_7=1
Timestamp: 2013-12-10 15:00:02
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40 CFR 50 - NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS | Title 40 - Protection of Environment | Code of Federal Regulations | LII / Legal Information Institute
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40 CFR 50 - NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS
§ 50.1 — Definitions.
§ 50.2 — Scope.
§ 50.3 — Reference conditions.
§ 50.4 — National primary ambient air quality standards for sulfur oxides (sulfur dioxide).
§ 50.5 — National secondary ambient air quality standard for sulfur oxides (sulfur dioxide).
§ 50.6 — National primary and secondary ambient air quality standards for PM10.
§ 50.7 — National primary and secondary ambient air quality standards for PM2 . 5.
§ 50.8 — National primary ambient air quality standards for carbon monoxide.
§ 50.9 — National 1-hour primary and secondary ambient air quality standards for ozone.
§ 50.10 — National 8-hour primary and secondary ambient air quality standards for ozone.
§ 50.11 — National primary and secondary ambient air quality standards for oxides of nitrogen (with nitrogen dioxide as the indicator).
§ 50.12 — National primary and secondary ambient air quality standards for lead.
§ 50.13 — National primary and secondary ambient air quality standards for PM2 . 5.
§ 50.14 — Treatment of air quality monitoring data influenced by exceptional events.
§ 50.15 — National primary and secondary ambient air quality standards for ozone.
§ 50.16 — National primary and secondary ambient air quality standards for lead.
§ 50.17 — National primary ambient air quality standards for sulfur oxides (sulfur dioxide).
Source: 36 FR 22384, Nov. 25, 1971, unless otherwise noted.
Title 40 published on 2012-07-01The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 50 after this date.2013-01-15; vol. 78 # 10 - Tuesday, January 15, 201378 FR 3086 - National Ambient Air Quality Standards for Particulate Matter
Appendix A-1 to Part 50 - Reference Measurement Principle and Calibration Procedure for the Measurement of Sulfur Dioxide in the Atmosphere (Ultraviolet Fluorescence Method)Appendix A-2 to Part 50 - Reference Method for the Determination of Sulfur Dioxide in the Atmosphere (Pararosaniline Method)Appendix B to Part 50 - Reference Method for the Determination of Suspended Particulate Matter in the Atmosphere (High-Volume Method)Appendix C to Part 50 - Measurement Principle and Calibration Procedure for the Measurement of Carbon Monoxide in the Atmosphere (Non-Dispersive Infrared Photometry)Appendix D to Part 50 - Measurement Principle and Calibration Procedure for the Measurement of Ozone in the AtmosphereAppendix E to Part 50 [Reserved]Appendix F to Part 50 - Measurement Principle and Calibration Procedure for the Measurement of Nitrogen Dioxide in the Atmosphere (Gas Phase Chemiluminescence)Appendix G to Part 50 - Reference Method for the Determination of Lead in Suspended Particulate Matter Collected From Ambient AirAppendix H to Part 50 - Interpretation of the 1-Hour Primary and Secondary National Ambient Air Quality Standards for OzoneAppendix I to Part 50 - Interpretation of the 8-Hour Primary and Secondary National Ambient Air Quality Standards for OzoneAppendix J to Part 50 - Reference Method for the Determination of Particulate Matter as PM10 in the AtmosphereAppendix K to Part 50 - Interpretation of the National Ambient Air Quality Standards for Particulate MatterAppendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the AtmosphereAppendix M to Part 50 [Reserved]Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the AtmosphereAppendix P to Part 50 - Interpretation of the Primary and Secondary National Ambient Air Quality Standards for OzoneAppendix Q to Part 50 - Reference Method for the Determination of Lead in Particulate Matter as PM10 Collected From Ambient AirAppendix R to Part 50 - Interpretation of the National Ambient Air Quality Standards for LeadAppendix S to Part 50 - Interpretation of the Primary National Ambient Air Quality Standards for Oxides of Nitrogen (Nitrogen Dioxide)Appendix T to Part 50 - Interpretation of the Primary National Ambient Air Quality Standards for Oxides of Sulfur (Sulfur Dioxide) CFR Toolbox