Nitrogen

• Nitrogen oxides

• Nitrogen fertilizers

• Nitrogen (Chemical element)

• Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Sulfur

This final rule is being issued as required by a consent decree governing the schedule for completion of this review of the air quality criteria and the secondary national ambient air quality standards (NAAQS) for oxides of nitrogen and oxides of sulfur. Based on its review, the EPA is retaining the current nitrogen dioxide (NO<INF>2</INF>) and sulfur dioxide (SO<INF>2</INF>) secondary standards to address the direct effects on vegetation of exposure to gaseous oxides of nitrogen and sulfur and, for reasons described in detail in this final preamble, is not adding new standards at this time to address effects associated with the deposition of oxides of nitrogen and sulfur on sensitive aquatic and terrestrial ecosystems. In addition, in this rule the EPA describes...

• Federal Register Nbr. 77 FR 20218, April 03, 2012
• Rules and Regulations
• Environmental Protection Agency

• Air Quality Designations for the 2010 Primary Nitrogen Dioxide (NO2

This rule establishes air quality designations for all areas in the United States for the 2010 Primary Nitrogen Dioxide (NO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS). Based on air quality monitoring data, the EPA is issuing this rule to designate all areas of the country as ``unclassifiable/attainment'' for the 2010 NO<INF>2</INF> NAAQS. The EPA is designating areas as ``unclassifiable/attainment'' to mean that available information does not indicate that the air quality in these areas exceeds the 2010 NO<INF>2</INF> NAAQS.

• Federal Register Nbr. 77 FR 9532, February 17, 2012
• Rules and Regulations
• Environmental Protection Agency

• Approval and Promulgation of Air Quality Implementation Plans; Virginia; Revision to Nitrogen Oxides Budget Trading Program

EPA is taking direct final action to approve a revision to the Virginia State Implementation Plan (SIP). The revision pertains to regulatory language in its nitrogen oxides (NO) Budget Trading Program that inadvertently ended its NO budget at the end of the 2008 ozone season. EPA is approving this revision in accordance with the requirements of the Clean Air Act (CAA).

• Federal Register Nbr. 76 FR 68638, November 07, 2011
• Rules and Regulations
• Environmental Protection Agency

• Rentech Nitrogen Announces Results for Fiscal 2011 Fourth Quarter and Full Year.

LOS ANGELES -- For the release dated December 15, 2011, in the second paragraph of Company Outlook, "...59% and 47% of forecasted deliveries..." shoul...

• Business Wire
• December 19, 2011

• Approval and Promulgation of Implementation Plans; Designation of Areas for Air Quality Planning Purposes; State of California; Ozone; Nitrogen Dioxide; Technical Amendments

EPA is making technical amendments to the Code of Federal Regulations (CFR) to reflect the final actions published by the Agency on October 7, 2003, April 30, 2004, and May 5, 2010 in connection with the designations and classifications of certain areas in California for the 1971 annual nitrogen dioxide standard and the 1997 eight-hour ozone standard pursuant to the Clean Air Act. The areas that are the subject of these technical amendments include Riverside County, Western Mojave Desert, South Coast Air Basin, Eastern Kern County, and San Diego County.

• Federal Register Nbr. 77 FR 16447, March 21, 2012
• Rules and Regulations
• Environmental Protection Agency

• 21 CFR 184.1540 - Nitrogen.

• Code of Federal Regulations - Title 21: Food and Drugs

• Approval and Promulgation of Implementation Plans; State of Florida: New Source Review Prevention of Significant Deterioration: Nitrogen Oxides as a Precursor to Ozone

EPA is proposing to approve changes to the Florida State Implementation Plan (SIP), submitted by the Florida Department of Environmental Protection (FDEP) through the Division of Air Resource Management to EPA in two separate SIP revisions on October 19, 2007, and July 1, 2011. These SIP revisions modify Florida's New Source Review (NSR) Prevention of Significant Deterioration (PSD) program to address requirements promulgated in the 1997 8-hour ozone national ambient air quality standards (NAAQS) Implementation Rule NSR Update Phase II (hereafter referred to as the ``Ozone Implementation NSR Update'' or ``Phase II Rule'') recognizing nitrogen oxide (NO<INF>X</INF>) as an ozone precursor, among other requirements. In addition, both SIP revisions make corrective and clarifying...

• Federal Register Nbr. 77 FR 20582, April 05, 2012
• Proposed rules
• Environmental Protection Agency

• 40 CFR 51.123 - Findings and requirements for submission of State implementation plan revisions relating to emissions of oxides of nitrogen pursuant to the Clean Air Interstate Rule.

• Code of Federal Regulations - Title 40: Protection of Environment

• Notice of Workshop and Call for Information on Integrated Science Assessment for Oxides of Nitrogen

The U.S. EPA Office of Research and Development's National Center for Environmental Assessment (NCEA) is preparing an Integrated Science Assessment (ISA) as part of the review of the primary National Ambient Air Quality Standards (NAAQS) for oxides of nitrogen (NO<INF>X</INF>). The scientific review that informs the ISA will include evidence for NO<INF>X</INF> whereas the indicator for NO<INF>X</INF> that has been used for the standard is nitrogen dioxide (NO<INF>2</INF>). Thus, the ISA is referred to as the NO<INF>X</INF> ISA while the standard itself is referred to as the NO<INF>2</INF> NAAQS. This ISA is intended to update the scientific assessment presented in the Integrated Science Assessment for Oxides of Nitr...

• Federal Register Nbr. 77 FR 7149, February 10, 2012
• Notices
• Environmental Protection Agency

• 40 CFR 60.332 - Standard for nitrogen oxides.

• Code of Federal Regulations - Title 40: Protection of Environment