Uncertainty 03
Uncertainty 03 : A general term used to describe the level of confidence in a given measurement or estimated quantity. Uncertainty depends on the amount and quality of the evidence (data) available. Uncertainties in the results of this study arise primarily from bias and imprecision in available measurements, absence of measurements at some times and places, lack of knowledge about some physical processes and operational procedures, and the approximate nature of mathematical models used to predict the transport of released materials