| Title | | Report /Research Author | Research Organization |
| OMB Submittal Package for Estimating Recreation Benefits of Water Quality: A Pilot Stidy om tje Pemmsylvania Monongahela River Basin (09/02/1981) | | | Research Triangle Institute |
| On Reducing Errors in Air Pollution Epidemiology (04/01/1982) |  | Atkinson, Scott E.
Crocker, Thomas D. | Wyoming, University of, Institute for Policy Research |
| On the Accuracy of Regulatory Cost Estimates (01/01/1999) | | Harrington, Winston
Morgenstern, Richard D.
Nelson, Peter | Resources for the Future |
| On the Relevance of Risk-Risk Analysis to Policy Evaluation (08/16/1995) |  | Arnold, Frank S. | Environmental Law Institute |
| On the Valuation of Recreation Damages (12/28/1977) | | Schulze, William D.
d'Arge, Ralph C. | Wyoming, University of |
| Opportunities in Backhauling Scrap Paper and Aluminum for Recycling (12/01/1992) |  |  | Apogee Research, Inc. |
| Option Price Estimates for Water Quality Improvements: A Contingent Valuation Study for the Monongahela River (08/01/1985) | | Desvousges, William H.
Smith, V. Kerry
Fisher, Ann | Research Triangle Institute |
| Option Values, Preservation Values and Recreational Benefits of Improved Water Quality: A Case Study of the South Platte River Basin, Colorado (01/01/1978) |  | Walsh, Richard G.
Greenley, D.A.
Young, R.A.
McKean, J.R.
Prato, A.A. | Colorado State University, Department of Economics |
| Outpatient Medical Costs Related to Air Pollution in the Portland, Oregon Area (07/01/1974) | | Jaksch, John A.
Stoevener, Herbert H. | Oregon State University, Department of Agricultural Economics |
| Oxidant Air Pollution and Work Performance of Citrus Harvest Labor (09/01/1977) |  | Crocker, Thomas D.
Horst, Jr., Robert L. | Wyoming, University of,
Department of Economics |
| Oxidants and Asthmatics in Los Angeles: A Benefits Analysis (03/01/1985) |  | Rowe, Robert D.
Chestnut, Lauraine G. | Energy and Resource Consultants, Inc. |
| Oxidants and Asthmatics in Los Angeles: A Benefits Analysis- Executive Summary (03/01/1986) |  | Rowe, Robert D.
Chestnut, Lauraine G. | Energy and Resource Consultants, Inc. |