| Author | Title | | Research Organization |
| O'Connor, Robert E. | Achieving Greater Consistency Between Subjective and Objective Risks (04/01/1989) | | Pennsylvania State University, Environmental Resources Research Institute |
| O'Neil, William B. | Analysis of Strategies for Identifying Potential Non-reporting Generators of Hazardous Waste (03/01/1986) |  | Environmental Protection Agency, Office of Policy, Planning and Evaluation, Office of Policy Analysis |
| Oakland, William H. | Environmental Trust Funds: An Evaluation (07/01/1974) | | RIVUS Inc. |
| Olkin, Ingram | Report of the EPA Work Group on VSL Meta-analysis (07/25/2006) |  |  |
| Opaluch, James J. | Review of Principles and Guidelines (10/01/1994) | | California, University of, Department of Agricultural and Resource Economics |
| Orlob, Gerald T. | A Regional Assessment of the Economic and Environmental Benefits of an Irrigation Scheduling Service (04/01/1980) |  | California, University of, and U.S. Department of Agriculture, Economics, Statistics and Cooperative Service, Natural Resource Economic Division |
| Oster, Sharon M. | The Incidence of Local Water Pollution Abatement Expenditures: A Case Study of the Merrimack River Basin (06/01/1974) | | Harvard University |
| Ostro, Bart | Air Pollution and Acute Health Effects: New Evidence (12/01/1986) |  | Resources for the Future |
| Ostro, Bart | Costs and Benefits of Reducing Lead in Gasoline: Final Regulatory Impact Analysis (02/01/1985) |  | Environmental Protection Agency, Office of Policy, Planning and Evaluation |
| Ostro, Bart | Heart Disease Patients' Averting Behavior, Costs of Illness, and Willingness to Pay to Avoid Angina Episodes - Appendices (10/01/1988) |  | California at Irvine, University of |
| Ostro, Bart | Heart Disease Patients' Averting Behavior, Costs of Illness, and Willingness to Pay to Avoid Angina Episodes - Final Report (10/01/1988) |  | California at Irvine, University of |
| Ostro, Bart | Morbidity, Air Pollution and Health Statistics (05/29/1981) |  | Environmental Protection Agency, Office of Planning and Evaluation |
| Ostro, Bart | The Economic Benefits of Controlling Volatile Organic Compounds and Nitrogen Oxides: A Generic Approach (04/18/1985) |  | Environmental Protection Agency, Office of Policy, Planning and Evaluation, Economic Analysis Division |
| Ostro, Bart D. | Santa Clara Criteria Air Pollutant Benefit Analysis (05/01/1987) |  | Energy and Resource Consultants, Inc. |
| Owens, Nicole | Economic Valuation of Mortality Risk Reduction: Assessing the State of the Art for Policy Applications (02/01/2002) |  | Abt Associates
Bethesda, MD 20814 |