University of Texas
Richard J. "Ricky" Tropp
?–

 

 

Richard J. "Ricky" Tropp

 

Maybe born Dec 11, 1945 in Bronx, New York City. He attended Stuyvesant High School graduating in 1961. He majored in physics at City College of New York, graduating in 1975. He earned his PhD from the University of Texas in 1979. His dissertation was entitled "Studies in Aerosol Physics and Atmospheric Electricity."

From Richard Tropp, " I started out in physics working for Nolle in low temperature solid state physics.  My PhD qualifying talk was about magnetic resonance in superconducting aluminum.  I later went to work for Prof. James R. Brock in Chemical Engineering doing research on applying atmospheric electricity techniques to monitoring aerosols.  My PhD dissertation committee consisted of two faculty each from physics and chemical engineering and one from electrical engineering.

Richard married Adrienne Gold (at right) in Queens, New York City, New York 1969. She had graduated from Queens College in 1968. From an online writeup: "Adrienne Tropp has been a political junkie since probably the age of five. She listened intently to discussions by her family and neighbors, and as a young teenager began expressing her views to others. In college, she took a more active part in politics: She dispersed campaign literature, knocked on people’s doors, and did telephone canvassing. Her goal was often to get out the vote. When she met her husband, Richard Tropp, she found a like-minded soul, so her interest in politics never waned. Their son and daughter, not surprisingly, grew up in a household filled with political debate. Adrienne has taught in New York, Texas, North Carolina, and Nevada, the four states in which she’s lived. She has always believed students should not know their teachers’ political views. She is proud that her students rarely figured out whom she was supporting in an election. After retiring from teaching, Adrienne ran a tutoring service, undertook her dream of writing, and found time for traveling. Perhaps her newest loves, her grandchildren, may supplant politics in her heart. -- She wrote: "Somebody Forgot to Tell Harry: Harry Reid's Journey from Searchlight to Spotligh" (Nevada Biographies for Children Book Adrienne taught at McCallum High School while she and Richard were in Austin.


Richard provided a brief personal history: "After a post-doc with Prof. Brock, conducting aircraft studies of particulate matter, I joined the Texas Air Control Board, first in charge of air pollution regulation development and later in charge of atmospheric sciences research.  I left the TACB to join a Research Triangle Park, North Carolina, consulting company to head up work on the quality assurance and auditing of EPA's big Regional Acid Deposition Model field study.  I then moved to another consulting company doing work for the field study and EPA's Eastern Fine Particle Visibility Network, providing technical support to EPA's Office of Air Quality Planning and Standards (OAQPS) on ambient air monitoring, and also performing quality control work for EPA's human health effects facility (Clinical Environmental Laboratory) at UNC Chapel Hill.  I finally left to join Desert Research Institute (Division of Atmospheric Sciences) as an Associate Research Professor providing field, laboratory, and Quality Assurance/Quality Control (QA/QC) support to state, local, federal, and international agencies on air pollution monitoring, especially for measuring and characterizing particulate matter.  

His 2011 resumé at DRI describes his Professional Interest:

"Dr. Richard J. Tropp is an Associate Research Professor in the Division of Atmospheric Sciences (DAS) at the Desert Research Institute (DRI), University and Community College System of Nevada. He has more than 36 years of management and research experience in the areas of ambient air quality monitoring, aerosol and particulate measurements, visibility, acid deposition, data analysis, quality assurance, regulation development, and air pollution control. His experience includes university research, management of state agency regulation development and research, and management and participation in ~50 ambient air monitoring projects. These projects included particulate measurements for advanced aerosol models, visibility, acid deposition, dry deposition, wet deposition, ozone precursors, air toxics, air quality monitoring, and revised ambient air quality standards and monitoring guidance, most recently for PM2.5. '

"He currently is Principal Investigator for a contract providing PM2.5 FRM and chemical speciation laboratory support to the Texas Commission on Environmental Quality, a continuation of contracts over a 13 year period. He also provides QA and QC support to DRI’s Environmental Analysis Facility, including NELAC accreditation and QA oversight of DRI’s laboratory carbon analysis for the IMPROVE program and EPA’s chemical speciation network. He is co-Principal Investigator for a joint effort to study the health effect of particulate matter in New Mexico. He recently was co-Principal Investigator for a study of air toxics in El Paso, TX for EPA Region 6 and wrote EPA’s guidance document on ambient air monitoring costs.'

"Dr. Tropp also managed PM2.5 laboratory support contracts for the TexAQSII study through The University of Texas at Austin, Oklahoma, Colorado, and Clark County. He was co- Principal Investigator for the Central California Ozone Study (CCOS) supplemental field measurements and assisted Clark County in preparing its PM10 SIP revision. He managed acceptance tests for the new Teflon filters provided by EPA to State and local agencies for PM2.5 monitoring at SLAMS. He also served as an invited external reviewer of EPA’s Quality Assurance Guidance Document 2.12 for monitoring PM2.5. He previously had helped EPA prepare its regulatory package for the proposed PM2.5 particulate standard, respond to public comments on the proposal, and prepare the final promulgation package for the standard. Dr. Tropp has managed particulate and visibility monitoring projects in major urban areas in Texas, Manhattan, and Philadelphia, and in rural areas of the eastern United States. In addition, he provided technical advice to State, local, and tribal agencies on particulate sampling and analysis through EPA’s Saturation Monitor Repository."

PROFESSIONAL EXPERIENCE:

1998 to 2018-Associate Research Professor, Division of Atmospheric Sciences, Desert Research Institute, Reno, NV.
1989 to 1998-Principal Scientist, TRC Environmental Corporation, Chapel Hill, NC.
1987 to 1989-Senior Research Associate, Research and Evaluation Associates Inc., Chapel Hill, NC.
1984 to 1987-Chief, Atmospheric Sciences Section, Texas Air Control Board, Austin, TX.
1981 to 1984-Chief, Emissions Standards and Engineering Section, Texas Air Control Board, Austin, TX.
1979 to 1980-Postdoctoral Research Associate, Department of Chemical Engineering, The University of Texas at Austin, Austin, TX.
1972 to 1979-Research Assistant, Department of Chemical Engineering, The University of Texas at Austin, Austin, TX.
1966 to 1972-Research Assistant, Department of Physics, The University of Texas at Austin, Austin, TX.
1965 to 1972-Teaching and Graduate Assistant, Department of Physics, The University of Texas at Austin, Austin, TX.

PROFESSIONAL MEMBERSHIPS

Air and Waste Management Association
(Technical Council Chair and Board of Directors)
American Association for Aerosol Research
American Physical Society
American Association for the Advancement of Science American Society for Quality
New York Academy of Sciences

Richard has an extensive list of publications, reports and presentations. Those through 2011 are listed at the end of this page

Richard retired from DRI in June 2018 and moved with his wife, Adrienne, to Washington, DC, to be close to their daughter and her children.  His son, Joel, a UT Austin undergraduate and graduate student, is now a Professor of Applied and Computational Mathematics at Caltech.

 

 

Richard J. "Ricky" Tropp in Prof. Nolle's magnetic resonance lab in the basement of the old physics building (Painter). 

Adrienne Gold Tropp, Queens College, NY, 1968

 

PUBLICATIONS (Through 2011)

Tropp, R.J., J.R. Brock, and P.J. Kuhn (1980). Spectral Analysis of Tropospheric Aerosol Measurements Obtained with a New Method of Measuring the Particle Size Distribution of Aerosols. Rev. Sci. Instrum. , 51 , 516-520.

Tropp, R.J., J.R. Brock, and P.J. Kuhn (1981). Spectral Analysis of Tropospheric Aerosol Measurements Obtained with a New Fast Response Sensor. Science , 213 , 651-653.

Wesley, M.L., D.R. Cook,R.L. Hart, B.B. Hicks, J.L. Durham, R.E. Speer, D.H. Stedman, and R.J. Tropp (19 83). Eddy-Correlation Measurements of the Dry Deposition of Particulate Sulfur and Submicron Particles. In Precipitation Scavenging, Dry Deposition, and Resuspension , Pruppacher et al. (eds.). Elsevier Science Publishing Co., New York, NY.

Ringler, E.S. and R.J. Tropp (1991). Comparison of Nephelometer and Photographic Determinations of Light Extinction. In Proceedings of the 1991 EPA/AWMA Symposium on Measurement of Toxic and Related Air Pollutants , Durham, NC, 6-10 May 1991.

Ringler, E.S. and R.J. Tropp (1991). Particulate Organic Sampling Artifacts. In Proceedings of the 1991 EPA/AWMA Symposium on Measurement of Toxic and Related Air Pollutants , Durham, NC, 6-10 May 1991.

Tropp, R.J., K. Jones, G. Kuhn, and N.J. Berg, Jr. (1998). Comparison of PM 2.5 Saturation Samplers with Prototype Federal Reference Method Samplers. In PM 2.5 : A Fine Particle Standard , J. Chow and P. Koutrakis, eds. Air & Waste Management Association, Pittsburgh, PA, pp. 215-225.

Rogers, C.F., J.C. Chow, J.G. Watson, C.A. Cahill, S. Diaz, P.D. Koman, S. Sleva, and R. Tropp (1998). Mineral Dust Contributions to Fine Particle Mass. In PM 2.5 : A Fine Particle Standard , J. Chow and P. Koutrakis, eds. Air & Waste Management Association, Pittsburgh, PA, pp. 168-176.

Price, J., S. Dattner, B. Lambeth, J. Kamrath, M. Aguirre Jr., G. McMullen, R. Tropp, and J. Chow (1998). Preliminary Results of Early PM 2.5 Monitoring in Texas: Separating the Impacts of Transport and Local Contributions. . In PM 2.5 : A Fine Particle Standard , J. Chow and P. Koutrakis, eds. Air & Waste Management Association, Pittsburgh, PA, pp. 191-202.

Fraser, M.P.; Z.W. Yue; R.J. Tropp; S.D. Kohl; and J.C. Chow (2002). Molecular Composition of Organic Fine Particulate Matter in Houston, TX. Atmos. Environ. , 36 (8):5751-5758.

Chow, J.C.; J.G. Watson; P. Doraiswamy; L.-W.A. Chen; and R.J. Tropp (2006). PM Measurements, Modeling Regulatory Status, and Health Effects. In 60 th Corso di Aggiornamento in Ingegneria Sanataria-Ambientale , M. Giugliano and S. Cernuschi, Eds. Politecnico di Milano, Milan, Italy, pp. 8-1-8-17.

Chow, J.C.; J.G. Watson; D.H. Lowenthal; L.-W.A. Chen; R. Tropp; K. Park; and K. Magliano (2006). PM 2.5 and PM 10 Mass Measurements in California’s San Joaquin Valley. Aerosol Sci. Technol ., 40 (10):796-810.

Chow, J.C.; J.G. Watson; P. Doraiswamy; L.-W.A. Chen; and R.J. Tropp (2007) Rilevamento, Modellistica, Aspetti Normativi ed Effetti Sulla Salute del Particolato Atmosferico. In Il Particolato Fine in Atmosfera . S. Cernuschi, M. Giugliano, M.Grosso, and G. Lonati, Eds. CIPA SRL, Milan, Italy, pp. 139-156 (In Italian)


PRESENTATIONS

Tropp, R.J., J.R. Brock, and P.J. Kuhn (1982). Spectral Analysis of Ambient Aerosol and Trace Gas Measurements Paper 82-31.3, presented at the Air Pollution Control Association 75th Annual Meeting, New Orleans, LA, 20-25 June 1982.

Tropp, R.J. (1983a). An Inhalable Particulate Matter Standard (PM-10) - Evaluating the Need for a New Regulation in Texas. Presented at the AIChE Spring Meeting, Houston, TX, 27-31 March 1983.

Tropp, R.J. (1983b). Trends and Approaches in Regulatory Control of Fugitive VOC Emissions. Presented at the AIChE Spring Meeting, Houston, TX, 27-31 March 1983.

Heisler, S.L., J.J. Shah, G.H. Hay, and R.J. Tropp (1983). Evaluation of Size-Specific Particulate Matter Emissions in Houston and El Paso, Texas. Paper 83-21.5, presented at the Air Pollution Control Association 76th Annual Meeting, Atlanta, GA, 19-24 June 1983.

Smith, C.C. and R.J. Tropp (1984). Air Quality Data and Air Quality Standards in the Regulation of Toxic Air Pollutants. Paper 84-7.2, presented at the Air Pollution Control Association 77th Annual Meeting, San Francisco, CA, 24-29 June 1984.

Tropp, R.J., C.C. Smith, C.J. Durrenberger, and S.L. Dattner (1984). Developing Short-Term Net Ground Level Concentration Limits for Lead. Paper 84-7.4, presented at the Air Pollution Control Association 77th Annual Meeting, San Francisco, CA, 24-29 June 1984.

Zimmermann, K., R.J. Tropp, J. Barta, and K. Crum (1985). Atmospheric Visibility Trends in Dallas-Fort Worth and El Paso. Paper V814, presented at the Texas Academy of Science 88th Annual Meeting, Dallas, TX, 14-16 March 1985.

Tropp, R.J., J. Barta, K. Crum, S.L. Dattner, and K. Zimmermann (1985). Time Series and Spectral Analysis of Ozone-Hydrocarbon Monitoring Data. Paper 85-21.1, presented at the Air Pollution Control Association 78th Annual Meeting, Detroit, MI, 16-21 June 1985.

Dattner, S., J. Moneysmith, and R.J. Tropp (1987). Minimum Sampling Frequency Requirements for Sampling Toxic Pollutants Dominated by a Major Point Source, Paper 87-66.5, presented at the Air Pollution Control Association 80th Annual Meeting, New York, NY, 21-26 June 1987.

Zimmermann, K.A., R.J. Tropp, and J. Barta (1987). The Relationship of Weather Patterns to Ozone in the Houston, Texas Area. Paper 87-113.4, presented at the Air Pollution Control Association 80th Annual Meeting, New York, NY, 21-26 June 1987.

Einfeld, W.S., S.L. Dattner, J. Yarbrough, and R.J. Tropp (1988). The Dallas Winter Visibility Study. Paper 88-57.2, presented at the Air Pollution Control Association 81st Annual Meeting, Dallas, TX, 20-24 June 1988.

Tropp, R.J., E.S. Ringler, and E.G. Evans (1991). Results from the Eastern Fine Particle and Visibility Monitoring Network. Paper 91-49.5, presented at the Air & Waste Management Association 84th Annual Meeting, Vancouver, BC, 16-21 June 1991.

Evans, E.G., R.J. Tropp, and T. Fitz-Simons (1992). Meteorological and Site Influences Affecting the Comparison of Nephelometer and Photographic Determinations of Light Extinction at Rural Sites in the Eastern United States. Paper 92-60.04, presented at the Air & Waste Management Association 85th Annual Meeting, Kansas City, MO, 21-26 June 1992.

Tropp, R.J. and S.F. Sleva (1994). The Use of Data Quality Objectives as a Tool in Total Quality Management and Project Planning. Paper 94-MP15.01, presented at the Air & Waste Management Association 87th Annual Meeting, Cincinnati, OH, 19-24 June 1994.

Elkins, J.B., S.F. Sleva, T.K. Moody, R.J. Tropp, and S.M. Murchie (1994). The Application of EPA's Compendia of Toxic Organic and Inorganic Methods to Ambient Air Monitoring at Superfund Sites. Paper 94-RA127A.03, presented at the Air & Waste Management Association 87th Annual Meeting, Cincinnati, OH, 19-24 June 1994.

Tropp, R.J., S.F. Sleva, W. Ramadan, and C.J. Harris (1996). Results of the 1994 Philadelphia PM 2.5 and PM 10 Saturation Study. Paper 96-MP3.03, presented at the Air & Waste Management Association 89th Annual Meeting, Nashville, TN, 23-28 June 1996.

Tropp, R.J., M. Mustafa, and R. Werner (1998). The Manhattan Community Based Particulate Study. Paper 98-TA31A.02, presented at the Air & Waste Management Association 91st Annual Meeting, San Diego, CA, 14-18 June 1998.

Price, J., S. Dattner, B. Lambeth, J. Kamrath, M. Aguirre Jr., G. McMullen, K. Loos, W. Crow, R. Tropp, and J. Chow (1998). Interim Results of Early PM 2.5 Monitoring in Texas: Separating the Impacts of Transport and Local Contributions. Presented at the AWMA 91st Annual Meeting, San Diego, CA, 14-18 June 1998. Air & Waste Management Association, Pittsburgh, PA.

Walk, C.J., J.W. Kachtick, K. Loos, W.L. Crow, J. Price, B. Lambeth, M. Aguirre, Jr., G. McMullen, J.C. Chow, and R.J. Tropp (1999). The Results of a Collaborative Effort to Measure and Speciate PM 2.5 in Houston and Other Texas Cities. Paper 99-413, presented at the Air & Waste Management Association 92nd Annual Meeting, St. Louis, MO, 20-24 June 1999.

Tropp, R.J., J.C. Chow, S.D. Kohl, and J.H. Price (2000). PM 2.5 Chemical Speciation Results in Texas. Presented at the “PM2000: Particulate Matter and Health – The Scientific Basis for Regulatory Decision Making” Conference, Charleston, SC, 24-28 January 2000. Air & Waste Management Assoc., Pittsburgh, PA.

Bonne, G., P.K. Mueller, L.W. Chen, B.G. Doddridge, W.A. Butler, P.A. Zawadzki, J.C. Chow, R. Tropp, and S. Kohl (2000). Composition of the Atmospheric Aerosol at the Point of Observation. Presented at the Particulate Matter and Stationary Sources Symposium, San Francisco, CA, 26 March 2000. American Chemical Society, Washington, DC.

Tropp, R.J., J.C. Chow, S.D. Kohl, and J.H. Price (2001). PM 2.5 Mass and Composition Results in Texas. 94th Annual Meeting, Orlando, FL, 24-28 June 2001. Air & Waste Management Association, Pittsburgh, PA.

Tropp, R.J., J. Engelbrecht, D.H. Lowenthal, S.D. Kohl, J.C. Chow, J.G. Watson, D.W. DuBois, R.J. Countess, S.J. Countess, and E.L. Michel (2003). Preliminary Assessment of PM 2.5 Chemical Speciation Results for Texas. Presented at the International Air Quality Conference IV – Mercury, Trace Elements, and Particulate Matter, Arlington, VA 22-24 September 2003.

Tropp, R.J., S.D. Kohl, A. Dickerson, B.C. Cristani, J.C. Chow, R.J. Countess, S.J. Countess, J.B. Flanagan, and E.L. Michel (2004). Quality Assessment of EPA PM 2.5 Chemical Speciation Results for Texas. Presented at the US EPA and AWMA Symposium on Air Quality Measurement Methods and Technology - 2004, Research Triangle Park, NC, 20- 22 April 2004.

Tropp, R., J. Engelbrecht, S. Kohl, A. Dickerson, J.C. Chow, J.G. Watson, D. DuBois, R. Countess, S. Countess, and E. Michel (2004). Assessment of PM 2.5 Chemical Speciation Results for Texas. Presented at the 97 th Annual Meeting of the Air and Waste Management Association, “Sustainable Development: Gearing up for the Challenge!” Indianapolis, IN, 24 June 2004.

Countess, R., S. Countess, R. Tropp, J. Engelbrecht, S. Kohl, A. Dickerson, B. Cristani, D. Lowenthal, J.C. Chow, and E. Michel. (2004). Generating Usable PM 2.5 Chemical Speciation Data for Sites in Texas during 2000-2002. Presented at the 97 th Annual Meeting of the Air and Waste Management Association, “Sustainable Development: Gearing up for the Challenge!” Indianapolis, IN, 24 June 2004.

Tropp, R.J., J. Engelbrecht, S.D. Kohl, A. Dickerson, J.C. Chow, J.G. Watson, R.J. Countess, S.J. Countess, and E.L. Michel (2004). PM 2.5 Chemical Speciation Results for Texas – Implications for Regional Studies. Presented at the 13 th World Clean Air and Environmental protection Congress, London, UK, 22-27 August 2004.

Tropp, R., J.C. Chow, J.G. Watson, S. Kohl, R. Countess, and E. Michel (2005). PM 2.5 Chemical Speciation Results for Texas. Presented at the A&WMA’s Symposium on Air Quality Measurement Methods and Technology 2005, San Francisco, CA, 21 April 2005.

Tropp, R.J., S.D. Kohl, J.C. Chow, J.G. Watson, R.J. Countess, S.J. Countess, and E.L. Michel (2005). PM 2.5 Chemical Speciation Results for Texas. Presented at the International Air Quality Conference V – Mercury, Trace Elements, SO 2 and Particulate Matter, Arlington, VA 18-21 September 2005.

Tropp, R.J., S.D. Kohl, J.C. Chow, J.G. Watson, M.R> Peterson, R.K.M. Jayanty, and J.B. Flanagan (2006). A Comparison of PM 2.5 Chemical Speciation Analytical Results from Research Triangle Institute and Desert Research Institute. Presented at the A&WMA’s Symposium on Air Quality Measurement methods and Technology – 2006, Durham, NC, 9-11 April 2006.

Chow, J.C., J.G. Watson, and R.J. Tropp (2006). Status and Development of PM 10-2.5 NAAQS. Presented at the Workshop on Recent Advances in Aerosol Measurement, National Central University, Taipei, Taiwan, 5 June 2006.

Tropp, R., J.C. Chow, J.G. Watson, S. Kohl, R. Countess, and S. Countess (2006). PM 2.5 Chemical Speciation Results for Texas – 2001-2004. Presented at the A&WMA’s 99 th Annual Conference & Exhibition, “Healthy Environments: Rebirth & Renewal”, New Orleans, LA, 20 June 2006.

Tropp, R.J., S.D. Kohl, J.C. Chow, J.G. Watson, J.B. Flanagan, and R.K.M. Jayanty (2006). Comparison of PM 2.5 Chemical Speciation Results for Texas Sites. Presented at the 7 th International Aerosol Conference, IAC – 2006, St. Paul, Minnesota, 12 September 2006.

Chow, J.C., J.G. Watson, and R.J. Tropp (2006). Status and Development of PM 10-2.5 National Ambient Air Quality Standards in the US. Presented at Il Particolato Fine in Atmosfera, Milan, Italy, 12 October 2006.

Tropp, R.J., S.D. Kohl, J.C. Chow, J.G. Watson, J.B. Flanagan, R.K.M. Jayanty, C. McDade, and W. White (2007). Developments in PM 2.5 Chemical Speciation – The View from Texas. Presented at A&WMA’s Symposium on Air Quality Measurement Methods and Technology – 2007, San Francisco, CA, 30 April – 3 May, 2007.

Tropp, R.J., J.C. Chow, J.G. Watson, S.D. Kohl, R.J. Countess, and S.J. Countess (2007). PM 2.5 Chemical Speciation Results for Texas – 2001-2005. Presented at the 100 th Annual meeting of the Air & Waste Management Association, Pittsburgh, PA, 26-29 June 2007.

Tropp, R.J., S.D. Kohl, J.C. Chow, J.G. Watson, J.B. Flanagan, R.K.M. Jayanty, C McDade, and W. White (2007). A Comparison of PM 2.5 Chemical Speciation Results for Texas Sites. Presented at the 14 th IUAPP World Congress, Brisbane, Australia, 9-13 September 2007.

Tropp, R.J., L.-W. A. Chen, J.C. Chow, and J.G. Watson (2008). Assessment of Carbon Sampling Artifacts in PM 2.5 Chemical Speciation Networks. Presented at the 101 st Annual Meeting of the Air & Waste Management Association, Portland, OR, 24-27 June 2008.

Tropp, R.J. (2009). Assessment of Data Quality Indicators for PM 2.5 Chemical Speciation Compounds using Data from Texas. Presented at the 102 nd Annual Meeting of the Air & Waste Management Association, Detroit, MI, 24-27 June 2008.

Chow, J.C.; J.G. Watson; and R.J. Tropp (2009). Quality Assurance Plan for the U.S. PM Supersites. Presented at National Cheng Kung University, Tainan, Taiwan, 15 May 2009.

Chen, L.-W. A., R.J. Tropp, D. Zhu, W.-W. Li, and E. Rodriguez-Hefner (2009). Air Toxics in El Paso, Texas: Implications for Cross-Border Transport. Presented at EPA’s National Ambient Air Monitoring Conference, Nashville, TN, 2-5 November 2009.

Tropp, R.J. (2010). PM 2.5 Chemical Speciation Results for Texas. Presented at the TCEQ FY11 Annual Air Training, San Antonio, TX, 20 October 2010.

REPORTS

Tropp, R.J. (1970). Studies in Aerosol Physics and Atmospheric Electricity. Doctoral Dissertation. The University of Texas at Austin, Austin, TX.

Tropp, R.J., T.H. Porter, and V. Anselmo (1984). Rainfall Collection and Analysis. Texas Air Control Board, Austin, TX.

Porter, T.H., R.J. Tropp, B.A. Fowler, and J.H. Price (1986). Acid Rain - A Texas Perspective. Texas Air Control Board, Austin, TX.

Price, J.H., R.J. Tropp, and J. Wiersema, (1987). Research Objectives, 1988. Texas Air Control Board, Austin, TX.

Tropp, R.J. (1989). Acid Aerosol Measurements Workshop, February 1-3, 1989, Research Triangle Park, NC, Final Report. EPA-600/9-89-056, U.S. Environmental Protection Agency, Research Triangle Park, NC.

Tropp, R.J. (1991). Establishment of Data Quality Objectives for Air Quality Monitoring for the EPA, ROC. ABB Environmental Services Report No. 8328-DQORPT. Prepared for the Environmental Protection Administration, Republic of China, Taipei, ROC.

Tropp, R.J., D. Tulis, E.S. Ringler, and C. Webb (1992). Analytical Detection Limits for EMEFS Laboratories. OMT Report prepared for the Atmospheric Environment Service, Downsview, ON.

Tropp, R.J. (1992). Analysis of the Comparability and Suitability of Filter Pack Sampling for Nitrate and Nitric Acid. OMT Report prepared for the Atmospheric Environment Service, Downsview, ON.

Tropp, R.J., S.F. Sleva, and C.J. Harris (1993). Integrated Atmospheric Deposition Network Quality Assurance Program Plan. TRC Environmental Report No. CH93-21. Prepared for the Atmospheric Environment Service, Downsview, ON, and the U.S. EPA, Research Triangle Park, NC.

Harris, C.J., S.F. Sleva, and R.J. Tropp (1993). Atmospheric Environment Service Semi-Routine Monitoring Project Quality Assurance Project Plan. TRC Environmental Report No. CH93-76. Prepared for the Atmospheric Environment Service, Downsview, ON.

Ringler, E.S., C.J. Harris, S.F. Sleva, and R.J. Tropp (1993). Guidance for Estimating Ambient Air Monitoring Costs for Criteria Pollutants and Selected Air Toxics. TRC Environmental Report No. CH93-104. Prepared for the U.S. EPA, Research Triangle Park, NC.

Tropp, R.J., S.F. Sleva, W. Ramadan, and C.J. Harris (1995). 1994 Philadelphia PM 2.5 and PM 10 Saturation Study. Final Revised Report, TRC Environmental Report No. CH95-105. Prepared for U.S. EPA OAQPS, Research Triangle Park, NC.

Tropp, R.J. (1997). Manhattan Community Based Particulate Study. Final Report, TRC Environmental Report No. CH97-02. Prepared for U.S. EPA Region II, New York, NY.

Chow, J.C., and R.J. Tropp (1998). Quality Management Plan for Laboratory Support for PM 2.5 SLAMS Ambient Monitoring Programs. Prepared for Texas Natural Resource Conservation Commission, Austin, TX, by Desert Research Institute, Reno, NV. December 1998.

Chow, J.C., and R.J. Tropp (1998). Quality Assurance Project Plan for PM 2.5 Laboratory Support for the TNRCC PM 2.5 Ambient Air Monitoring Program. Prepared for Texas Natural Resource Conservation Commission, Austin, TX, by Desert Research Institute, Reno, NV. December 1998.

Chow, J.C., and R.J. Tropp (1998). Quality Management Plan for Laboratory Support for PM 2.5 SLAMS Ambient Air Monitoring Programs. Prepared for Oklahoma Department of Environmental Quality, Air Quality Division, Oklahoma City, OK, by Desert Research Institute, Reno, NV. December 3, 1998.

Chow, J.C., R.J. Tropp, and J.G. Watson (1998). Quality Assurance Project Plan for PM 2.5 Laboratory Support for the Oklahoma DEQ PM 2.5 Ambient Air Monitoring Program. Prepared for Oklahoma Department of Environmental Quality, Air Quality Division, Oklahoma City, OK, by Desert Research Institute, Reno, NV. December 4, 1998.

Tropp, R.J., S.D. Kohl, J.C. Chow, and C.A. Frazier (1998). Final Report for the Texas PM 2.5 Sampling and Analysis Study. DRI Document No. 6570-685-7770.1F. Prepared for the City of Houston, Bureau of Air Quality Control, Houston, TX, by Desert Research Institute, Reno, NV, and TRC Environmental Corp., Chapel Hill, NC. December 15, 1998.

Tropp, R.J., S.D. Kohl, and J.C. Chow (2001). Final Report for the Texas PM 2.5 Sampling and Analysis Study with Supplemental Analyses of Archived Filters (March 31, 1997 through March 12, 1998). DRI Document No. 6570-667-0580.1D2. Prepared for Bureau of Air Quality Control, City of Houston, TX, by Desert Research Institute, Reno, NV, June 15, 2001.

Engelbrecht, J., H Kuhns, M. Green, R. Tropp, and J. Watson (2005). MANE_VU, Source Apportionment Analysis of Air Quality Monitoring Data: Phase II. Final Report, 71pp, plus appendices, March 2005.

Tropp, R.J. (2007) Guidance for Estimating Ambient Air Monitoring Costs for Criteria Pollutants and Selected Air Toxic Pollutants (2007). DRI Document No. 6360-665-2820.1F. Prepared for Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, NC. May 2007.

 

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