Estimating Cleanup Costs for Oil Spills
نویسنده
چکیده
The factors that affect cleanup cost are complex and interrelated. Each spill involves a unique set of circumstances that determine cleanup cost. Estimating a universal per-unit cleanup cost is essentially meaningless without taking into consideration factors such as location and oil type, which can profoundly influence costs. This paper examines the host of factors that impact cleanup cost in an effort to more accurately assess per-unit cleanup cost. A cost-estimation model, based on an analysis of cost data in the Oil Spill Intelligence Report (OSIR) International Oil Spill Database (a 38-year record of over 8,600 oil spills worldwide) is presented as an alternative to a universal per-unit cost value. Introduction The costs associated with cleaning up an oil spill are strongly influenced by the circumstances surrounding the spill including: the type of product spilled; the location and timing of the spill; sensitive areas affected or threatened; liability limits in place; local and national laws; and cleanup strategy. The most important factors determining a per-unit amount (either per-gallon or per-tonne) cost are location and oil type, and possibly total spill amount. The complex interrelationships of these factors and the manner in which they are influenced by other factors is shown in Figure 1. Figure 1: Factors determining per unit oil spill cleanup costs.
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