From Table 7-3, what is the C • t value for 99.9 percent (3.0 log) inactivation of Giard...

From Table 7-3, what is the C • t value for 99.9 percent (3.0 log) inactivation of Giardia cysts at a free chlorine residual of 1.0 mg/I, temperature of 10°C, and pH 7.5? How does a water temperature increase to 20°C affect the C • t? A decrease to 5°C? (Answers 134 (mg/I) - min, times 1/2, times 4/3)