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File Description |
File Date |
File Types |
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Air Quality Modeling Technical Support Document for the Regulatory Impact Analysis for the Revisions to the National Ambient Air Quality Standards for Particulate Matter |
Dec 2012 |
14.2 MB |
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Evaluation of the PM2.5 'Collocated PM10' Data Substitution Routine, 2009-2011. Schmidt, 12/14/12 memo |
Dec 2012 |
224 kb |
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Evaluation of PM2.5 Seasonal Sampling, 2009-2011. Schmidt, 12/14/12 memo |
Dec 2012 |
224 kb |
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Reanalysis of the relationship between 24-hour and 4-hour visibility index levels. Frank, 12/14/12 memo |
Dec 2012 |
224 kb |
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Updated comparison of 24-hour PM2.5 design values and visibility index design values. Kelly et al. 12/14/12 memo |
Dec 2012 |
582 kb |
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Provisional Assessment of Recent Studies on Health Effects of Particulate Matter Exposure. |
Dec 2012 |
634 kb |
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Differences between maximum and composite monitor annual PM2.5 design values by CBSA. Frank 12/13/12 memo |
Dec 2012 |
349 kb |
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Sensitivity Analysis of Long-term Mean PM2.5 Concentrations for Selected Long-term Exposure Epidemiological Studies. Schmidt 12/13/12 memo |
Dec 2012 |
483 kb |
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Technical Analyses to Support Surrogacy Policy for Proposed Secondary PM2.5 NAAQS under NSR/PSD Programs, Kelly et al., 6/14/12 memo |
June 2012 |
1.8 MB |
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Recommendations for Sampling Artifact Correction for PM2.5 Organic Carbon, Frank 6/14/12 memo |
June 2012 |
75 kb |
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Documentation of Measurement Uncertainty Estimates of Collocated Chemical Speciation Network and IMPROVE Data for Use in the Secondary PM2.5 Standard for Visibility, Papp, 6/13/12 memo |
June 2012 |
3.3 MB |
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Air Quality Analyses and Data Sets used in PM NAAQS Review |
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Investigation of 1-hour PM2.5 Mass Concentration Data from EPA-Approved Continuous Federal Equivalent Method Analyzers, Evangelista, 4/5/11 memo |
Apr 2011 |
1.9 MB |
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Assessment of PM2.5 FEMs Compared to Collocated FRMs, Hanley and Reff, 4/7/11 memo |
Apr 2011 |
114 KB |
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PM2.5 Distributional Statistical Analyses, Rajan et al., 4/7/11 memo |
Apr 2011 |
150 KB |
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PM10 and PM10-2.5 Air Quality Analyses, Schmidt, 4/14/11 memo |
Apr 2011 |
921 KB |
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PM2.5 Air Quality Analyses - Update, Schmidt, 4/15/11 memo |
Apr 2011 |
463 KB |
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Supplemental analysis of PM10 Air Quality from Locations Evaluated by Zanobetti and Schwartz (2009), Jenkins, 2/3/11 memo |
Feb 2011 |
21 KB |
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Simplified Approaches for Calculation of Hourly PM2.5 Light Extinction Values From Hourly PM2.5 Mass and Relative Humidity Data and 24-hour PM2.5 Composition Data, Lorang, 11/17/10 memo |
Nov 2010 |
1.0 MB |
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Assessment of the Use of Speciated PM2.5 Mass-Calculated Light Extinction as a Secondary PM NAAQS Indicator of Visibility, Pitchford, 11/17/10 memo |
Nov 2010 |
2.9 MB |
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PM2.5 Air Quality Analyses, Schmidt et al., 7/22/10 memo |
Jul 2010 |
120 KB |
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Explanation of Error in Table 4-3 of the Final UFVA, Lorang, 7/23/10 memo |
Jul 2010 |
65 KB |
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SANDWICH-Related Correction to the UFVA Data File, as Used for the Final Document, Lorang, 7/23/10 memo
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Jul 2010 |
100 KB |
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Particulate Matter Air Quality Data Requested from Epidemiologic Study Authors, Stanek et al., 7/22/10 memo |
Jul 2010 |
61 KB |
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PM10 and PM10-2.5 Air Quality Analyses, Schmidt and Jenkins, 7/22/10 memo |
Jul 2010 |
910 KB |
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Analyses of PM2.5 Data for the PM NAAQS Review, Hassett-Sipple, et al., 3/29/10 memo |
Mar 2010 |
831 KB |
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Corrections to Relative Humidity Values Used in the Draft Urban-Focused Visibility Assessment, Availability of Data File Comparing Incorrect RH Data to Corrected RH Data for Atlanta and Birmingham, Lorang 2/3/10 memo |
Feb 2010 |
113 kb |
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Statistical Analysis of Existing Urban Visibility Preference Studies, Deck and Lawson 2/3/10 memo |
Feb 2010 |
171 kb |
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Corrections to Relative Humidity Values Used in the Draft UFVA, Corrected Graphics, Tables, and Availability of Detailed Data File for Current Conditions, Lorang 11/10/09 memo |
Nov 2009 |
682 kb |
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Review of Urban Visibility Public Preference Studies (Final Report) |
Sep 2009 |
811 KB |