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Stephen Reynolds

Stephen J. Reynolds, C.I.H.

Phone: (970) 491-3141
Fax: (970) 491-2940
Office: 154 B Environmental Health Building



Academic and Other Positions

Research Interests

Dr. Reynolds' research efforts focus on development of exposure assessment methods for organic and biological aerosols and the application of these methods for epidemiological investigations of respiratory disease. In particular, current research focuses on comparative assay and chemical (GC-MS) approaches to evaluating Gram-negative bacterial endotoxins and their role, along with genetic risk factors, in lung disease among agricultural workers. Related research into environmental causes of asthma and other respiratory disease problems among children and adults in non-industrial environments also focuses on effectiveness of interventions to prevent disease. Other initiatives include research concerning exposure assessment methods for pesticides, and development of international education programs for the occupational hygiene profession primarily in the former Soviet Union countries (Chair AIHA International Affairs Committee 2004/2005).

Dr. Reynolds is also Director of the CDC/NIOSH-funded High Plains Intermountain Center for Agricultural Health and Safety, and in that role is involved in rural and agricultural health research, education, outreach, and policy on a regional and national level.

Selected Publications

 • Maggie L Clark, Jennifer L Peel, James B Burch, Stuart Conway, Annette M Bachand, and Stephen J Reynolds. Indoor air pollution, cookstove quality, and housing characteristics in two Honduran communities. Submitted to Env Research - In Press

 • Poole JA, Dooley GP, Saito R, Burrell AM, Bailey KL, Romberger DJ, Mehaffy J,Reynolds SJ. Muramic Acid, Endotoxin/3-OHFA, and Ergosterol Explain Monocyte and Epithelial Cell Inflammatory Responses to Agricultural Dusts. J Tox Env Health In Press

 • Plummer LE, Pinkerton KE, Reynolds SJ, Meschke S, Mitloehner F, Bennett D, Schenker M. Aerosols in the Agricultural Setting. JAgromedicine 14(4) 413-416, 2009.

 • Saito R, Cranmer BK, Tessari JD, Larsson L, Reynolds SJ. Recombinant Factor C (rFC) assay and gas chromatography/mass spectrometry (GC/MS) analysis of endotoxins in four agricultural dusts. Ann. Occup. Hyg., AOH 53(7)713-722, 2009 (doi:10.1093/annhyg/mep052)

 • Burch JB, Svendsen E, Siegel PD, Wagner SE, Von Essen S, Keefe T, Mehaffy J, Serrano Martinez A, Bradford M, Baker L, Cranmer B, Saito R, Tessari J, Prinz L, Andersen C, Christensen O , Koehncke N, Reynolds SJ. Endotoxin Exposure and Inflammation Markers among Agricultural Workers in Colorado and Nebraska. J Tox Env Health in press

 • Reynolds SJ, Nakatsu J, Tillery M, Keefe T, Mehaffy J, Thorne PS, Donham KJ, Nonneman M, Golla V, O’Shaughnessy P. Field and Wind Tunnel Comparison of Four Aerosol Samplers using Agricultural Dusts. Ann Occ Hyg. doi:10.1093/annhyg/mep021, pp. 1 – 10, 2009

 • Clark, Maggie L., Peel, Jennifer L., Burch, James B., Nelson, Tracy L., Robinson, Matthew M., Conway, Stuart,Bachand, Annette M. and Reynolds, Stephen J.(2009) Impact of improved cookstoves on indoor air pollution and adverse health effects among Honduran women, International Journal of Environmental Health Research,19:5,357–368

 • Kirychuk SP, Reynolds SJ, Koehncke NK, Nakatsu J, Mehaffy J Comparison of Particle Bounce and Endotoxin Assay in Marple Cascade Samplers With and Without Impaction Grease. J Agromedicine 14(2):242-9.

 • Douphrate, D., Rosecrance, J., Reynolds, S., Stallones, L., Gilkey, D. (2009). Tractor-related injuries: an analysis of workers’ compensation data. Journal of Agromedicine. 14:1-8.

 • Douphrate, D., Rosecrance, J., Stallones, L., Reynolds, S., Gilkey, D. (2009). Livestock-handling injuries in agriculture: an analysis of Colorado workers’ compensation data. American Journal of Industrial Medicine.52:391-407.

 • Thomas K, Dosemeci M, Hoppin J, Sheldon L, Croghan C, Gordon S, Jones M, Reynolds S, Raymer J, Akland G, Lynch C, Knott C, Sandler D, Blair A, Alavanja M. Urinary Biomarker, Dermal, and Air Measurement Results for 2,4-D and Chlorpyrifos Farm Applicators in the Agricultural Health Study. J Exposure Science and Environmental Epidemiology. In press 2009

 • Lee JA, Reynolds SJ, Thorne PS, O'Shaughnessy PT. Monitoring Risks in Association with Exposure Levels Among Waste Water Treatment Plant Workers. J Occup Environ Hygiene 3:36-43, 2007.

 • Patrick T. O'Shaughnessy, Julie Lo, Vijay Golla, Jason Nakatsu, Marvin I. Tillery, Stephen Reynolds. Comparison of Aerosol Samplers Relative to the Inhalable and Respirable Collection Criteria. JOEH 4:237-245, 2007.

 • Curwin BD, Hein MJ, Sanderson WT, Striley C, Heederick D, Reynolds SJ, Ward EM, Alavanja MC.
Pesticide dose estimates for children of Iowa farmers. Environmental Research 105:307-315, 2007.

 • Reynolds SJ, Tatevosyan A, Fuortes L, Merchant JA, Stromquist AM, Burmeister LF, Taylor C, Kelly KM. Keokuk County Rural Health Study: Self-reported Use of Agricultural Chemicals and Protective Equipment.
J Agromedicine 12(3), 2007.

 • Tadevosyan A, Reynolds SJ, Kelly KM, Fuortes L, Mairapetyan A, Tadevosyan N, Petrosyan M, Beglaryan S., Organochlorine Pesticide Residues in Breast Milk in Armenia. J Clinical and PreClinical Medicine 1(1):84-88, 2007.

 • Curwin1 BD, Hein1 MJ, Sanderson2 WT, Striley3 C, Heederick4 D, Reynolds5 SJ, Ward6 EM, Alavanja7 MC. 2006. Urinary pesticide concentrations among children, mothers, and fathers living in farm and non-farm households in Iowa. Annals Occup Hygiene pp.1-13, Sept. 19, 2006.

 • Kirychuk SP, Dosman JA, Reynolds SJ, Willson P, Senthilselvan A, Feddes JJR, Classen H, Guenter W. Total dust and endotoxin in poultry operations: comparison between cage and floor rearing and respiratory effects of workers. JOEM. 741-8, 2006.

 • Roman-Muniz IN, Van Metre DC, Garry FB, Reynolds SJ, Wailes WR, Keefe TJ. Training Methods and Association with Worker Injury on Colorado Dairies: A Survey. JASH 11(2) 2006.

 • Ayebo A, Breuer GM, Cain TG, Wichman MD, Subramanian P, Reynolds SJ. 2006. Sterols as biomarkers for waste impact and source characterization in stream sediment. J Environ Health 68 (10): 46 - 50.

 • Reynolds SJ, Milton DK, Heederik D, Thorne PS, Donham KJ, Croteau EA, Kelly KM, Douwes J, Lewis D, Whitmer M, Connaughton I, Koch S, Malmberg P, Larsson BM, Deddens J, Saraf A, Larsson L. Interlaboratory evaluation of endotoxin analyses in agricultural dusts - comparison of LAL assay and mass spectrometry. J. Environ. Monit., 2005, 7, 1371 - 1377.

 • Rautiainen RH, Ledolter J, Sprince NL, Donham KJ, Burmeister LF, Ohsfeldt R, Reynolds SJ, Phillips K, Zwerling C. 2005. Effects of premium discount on worker's compensation claims in agriculture in Finland. Am J Ind Med 48:100-109.

 • Sanderson WT, Madsen MD, Rautiainen R, Kelly KM, Zwerling C, Taylor CD, Reynolds SJ, Stromquist AM, Burmeister LF, Merchant JA. 2005. Tractor safety concerns in Iowa: The Keokuk County Rural Health Study. J Agric Saf Health 12(1): 71-81.

 • Curwin BD, Hein MJ, Sanderson WT, Barr DB, Reynolds SJ, Ward EM, Alavanja MC. Urinary Pesticide Levels Among Farmers and Non-Farmers in Iowa. Journal of Exposure Analysis and Environmental Epidemiology (2005).

 • JA Merchant, AL Naleway, ER Svendsen, KM Kelley, lF Burmeister, AM Stromquist, CD Taylor, PS Thorne, SJ Reynolds, WT Sanderson, EA Chrischilles. Asthma and Farm Exposures – A Cohort of Rural Iowa Children (Env Health Perspectives (2005)

 • Groves WA , Agarwal D, Chandra MJ, Reynolds SJ. Evaluation of a Fluorometric Method for Measuring Low Concentrations of Ammonia in Ambient Air. J. Environ. Monit. 7(2):163-8, 2005 Feb; J Environ Monit DOI:10.1039/B411109E (online version)

 • Taylor J R, O’Shaughnessy PO, Reynolds SJ. Estimating Personal Exposures Based Upon Mass Balance Material Usage Rates: Validation of a Ventilation Model in a Spray Paint Booth. J Occ Env Hyg 1(4): 213-221 (2004)

 • Nonnenmann MW, Donham KJ, Rautiainen RH, O’Shaughnessy PT, Burmeister LF, Reynolds SJ. Vegetable Oil Sprinkling as a Dust Reduction Method in Swine Confinement. JASH 10(1):7-15, 2004.

 • Kirychuck SP, Senthilselvan A, Dosman JA, Jurio V, Feddes JJR, Willson P, Classen H, Reynolds SJ, Guenter W, Hurst TS. Respiratory Symptoms and Lung Function in Poultry Confinement Workers in Western Canada. Can Respir J, Oct; 10 (7): 375-380, 2003.

 • Groves WA , Reynolds SJ. Prototype Sampling System for Measuring Workplace Protection Factors for Gases and Vapors. App Occ Env Hyg 18(5)1-9, 2003

 • Park HS, Reynolds SJ, Kelly KM, Stromquist AM, Burmeister LF, Zwerling C, Merchant JA. Characterization of Agricultural Tasks Performed by Youth in the Keokuk County Rural Health Study. App Occ Env Hyg. 18(6)1-12, 2003.

 •  Reynolds SJ,Thorne PS, Donham KJ, Croteau EA, Kelly KM, Lewis D, Whitmer M, Heederik DJJ, Douwes J, Connaughton I, Koch S, Malmberg P, Larsson BM, Milton DK. Interlaboratory Comparison of Endotoxin Assays Using Agricultural Dusts. Am Ind Hyg Assoc J. 63(4):430-438, 2002.

 • Merchant JA, Zwerling C, Burmeister LF, Reynolds SJ, Stromquist AM, Kelly KM. Chronic Disease and Injury in an Agricultural County: The Keokuk County Rural Health Cohort Study. J Rural Health 18(4):521-535, 2002

 • Donham KJ, Cumro D, Reynolds SJ.Synergistic Effects of Dust and Ammonia on the Occupational Health Effects of Poultry Production Workers. J Agromedicine Vol 8(2)57-76, 2002  • Rautiainen RH, Reynolds SJ, Mortality and Morbidity in Agriculture in the United States. JASH 8(3):259-276, 2002.

 • Curwin B, Sanderson W, Reynolds SJ, Hein M, Alavanja M. Pesticide Use and Practices in the Iowa Farm Family Pesticide Exposure Study. JASH 8(4):423-433, 2002.

 • Taylor CD, Reynolds SJ. Comparison of a direct-reading device to gravimetric methods for evaluating organic dust aerosols in enclosed swine production building. Appl. Occ. Env. Hyg, 16(1):78-83, 2001

 • Reynolds SJ, Black DW, Borin SS, Breuer G, Burmeister LF, Guortes LF, Smith TF. Stein MA Subramanian P, Thorns PS, Whitten P. Indoor Environmental Quality in Six Commercial Office Buildings in the Midwest U. S. Appl. Occ. Eng. Hyg. 16(11):1065-1077, 2001.

 • Johnson JC, Reynolds SJ. Fuortes LF, Clarke WR. Lead exposure among workers renovating a previously de-leaded bridge: comparison of trades, work tasks. Am Ind Hyg Assoc J . 61(6):815-19, 2000.

 • Reynolds SJ, Groves W. Effectiveness of roll-over protective structures in reducing farm tractor fatalities. Am J Prev Med 18(4S):63-69, 2000.

 • Mahar S, Reynolds SJ, Thorne PS. Worker Exposures to particulates, endotoxins, and bioaerosols in two refuse-derived fuel plants. Am Ind Hyg Assoc J. 60:679-683, 1999.

 • Reynolds SJ, Merchant JA, Stromquist AM, Burmeister LF, Taylor C, Lewis MQ, Kelly KM. Keokuk County Rural Health Study: Self reported use of pesticides and protective equipment. J Agric Safety Health Special Issue (1):67-77, 1998.

 •  Thorne PS, Reynolds SJ, Milton DK, Bloebaum PD, Zhang X, Whitten P, Burmeister LF. Field evaluation of endotoxin air sampling assay methods. Am Ind Hyg Asso J 58:792-799, 1997.

 • Reynolds SJ, Donham KJ, Whitten P, Merchant JA, Burmeister LF, Popendorf WJ. Longitudinal evaluation of dose-response relationships for environmental exposures and pulmonary function in swine production workers. AM J Ind Med 29:33-40, 1996.

 • Reynolds SJ, Etre L, Thorne PS, Whitten P, Selim M. Popendorf WJ. Laboratory comparison of vacuum,OSHA and HUD sampling methods for lead in household dust. AM Ind Hyg Assoc J 29:33-40, 1996.

 •  Etre, LA, Reynolds SJ, Burmeister L, Whitten P, Gergely R. An evaluation of the effectiveness of lead paint hazard reduction when conducted by homeowners and landlords. Appl. Occ. Env. Hyg., 14(8):522-529, 1994.

 • Reynolds, Parker, Vesley, McJilton, Janni. Occupational exposure to organic dusts and gases in the turkey growing industry. Appl. Occ. Env. Hyg. 9(7):493-502, 1994.

 • Reynolds SJ, Milton DK. Comparison of methods for analysis of airborne endotoxin. Appl Occup Envir Hyg 8(9):761-767, 1993.

Mailing Address
Environmental & Radiological Health Sciences
1681 Campus Delivery
Colorado State University
Fort Collins, CO 80523
Phone: (970) 491-7038
Fax: (970) 491-2940
Email: ERHSDepartment