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K values of the first-order die-off in distilled and raw water as a function of temperature, as determined by a dye permeability assay or in vitro excystation. Data sources for temperatures above 4°C are listed in Table 1. The K value for −22°C is from reference 35, that for −4°C is from reference 30, and those for 0.5 to 2°C are from reference 5.
