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Contingent Valuation for Ecological and Noncancer Effects within an Integrated Human Health and Ecological Risk Framework

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Objective:
The objective of the proposed research is to contribute to the understanding of practical and credible approaches for estimating the benefits and costs of environmental policies and to improve decision making regarding environmental issues by developing an integrated human health and ecological risk model using a case study approach. The case study focuses on potential human health and ecological receptor exposure to polychlorinated biphenyl (PCB) compounds via fish ingestion. The risk model will integrate the results of two contingent valuation surveys to quantify the benefit of potential risk reductions under assumed exposure conditions using a publicly available database.

Approach:
The specific components of the research include:
developing and administering a web-based contingent valuation questionnaire to estimate willingness-to-pay of the general public to reduce the risk of reproductive effects on otter and eagles associated with exposure to polychlorinated biphenyls (PCBs);
developing and administering a web-based contingent valuation questionnaire to estimate willingness-to-pay of the general public to reduce the potential risk of developmental noncancer human health effects associated with exposure to PCBs; and
developing a population-level dose-response model for the potential developmental effects of PCBs in order to quantitatively evaluate the valuation data obtained under the previous task.

Expected Results:
The proposed research will provide estimates of willingness to pay for developmental and ecological effects associated with exposure to PCBs, a common contaminant. These estimates will provide a quantitative metric of benefits resulting from potential risk reductions associated with actions that reduce exposure. Together with the population noncancer dose response model, this research demonstrates the applicability of benefits estimation for noncancer and ecological effects within an integrated human health and ecological risk model that has broader implications for the numerous PCB-contaminated sites across the country.

Supplemental Keywords:
risk assessment, contingent valuation, ecological effects, noncancer effects, modeling. , Economic, Social, & Behavioral Science Research Program, Ecosystem Protection/Environmental Exposure & Risk, HUMAN HEALTH, Health, PHYSICAL ASPECTS, RFA, Scientific Discipline, Ecology and Ecosystems, Economics, Economics & Decision Making, Exposure, Monitoring/Modeling, Physical Processes, Risk Assessments, Social Science, decision-making, PCB, biomarkers, chemical exposure, conjoint analysis, contingent valuation, decision analysis, decision making, dietary exposure, dose-response, ecological risk, ecological risk assessment, environmental stress, fish-borne toxicants, human exposue, human exposure, human health risk, market valuation models, multi-criteria decision analysis, multi-objective decision making, non-market valuation, pesticides, policy analysis, population based dose response model, population model, public policy, risk assessment model, standards of value, surveys

Metadata

EPA/NSF ID:
R830821
Principal Investigators:
Hammitt, James K.
Stackelberg, Katherine von
Technical Liaison:
Research Organization:
Harvard University
Funding Agency/Program:
EPA/ORD/Valuation
Grant Year:
2002
Project Period:
September 1, 2003 to August 31, 2006
Cost to Funding Agency:
$266,632
Project Status Reports:
Project Reports:

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