. 2015 Aug 4;10(8):e0134726. doi: 10.1371/journal.pone.0134726

Table 2. Calculated time for a 3-log reduction of two Acanthamoeba strains treated separately by its life stage, cyst or trophozoite at 1.2 mg L^-1 and 2.5 mg L^-1 of free chlorine.

Inactivation kinetics of amoeba strains adjusted to a first-order model and to a biphasic decay model (*). R² values showed the robustness of the model. NA (not achieved).

Acanthamoeba strains	Life form	Calculated time (min) to reduce 3 logs
Acanthamoeba strains		1.2 mg L^-1	R²	2.5 mg L^-1	R²
A. castellanii CCAP 1534/2	Trophozoite	29	0.96	14	0.99
A. castellanii CCAP 1534/2	Cyst	NA*	0.99	NA*	0.99
Acanthamoeba sp. 155	Trophozoite	NA*	0.99	74	0.97
Acanthamoeba sp. 155	Cyst	NA*	0.99	NA*	0.95

Table 2. Calculated time for a 3-log reduction of two Acanthamoeba strains treated separately by its life stage, cyst or trophozoite at 1.2 mg L-1 and 2.5 mg L-1 of free chlorine.

Table 2. Calculated time for a 3-log reduction of two Acanthamoeba strains treated separately by its life stage, cyst or trophozoite at 1.2 mg L^-1 and 2.5 mg L^-1 of free chlorine.