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|EPA’s Office of Air and Radiation (OAR) has requested CASAC advice on its plans for oxides of nitrogen (NOx) and sulfur oxides (SOx) Monitoring and Network Design. |
OAR requested CASAC review candidate methods for assessing levels of nitrogen and sulfur deposition; assessing constituents such as particulate sulfate, total oxidized nitrogen (NOy), sulfur dioxide (SO2), and ammonia gas and ammonia ion combined (NHx) in the assessment of an Atmospheric Acidification Potential Index; and the potential network design for a monitoring system in support of a secondary NOx/SOx National Ambient Air Quality Standard.
|Agency Review Document(s): |
PDF for Characterizing Emissions, Air Quality, Deposition and Water Quality. (PDF, 98 pp., 10,557,895 bytes)
PDF for Ambient Air Monitoring For A New Secondary NAAQS For 2 Oxides of Nitrogen and Sulfur. (PDF, 20 pp., 614,650 bytes)
PDF for Air Quality Observation Systems in the United States - Draft Report. (PDF, 81 pp., 1,286,053 bytes)
PDF for Federal Reference Methods for NOy and p-SO4 for the New Combined NOx and SOx Secondary NAAQS - Research Plan - January 20, 2011. (PDF, 12 pp., 229,539 bytes)