Article Figures & Data
Figures
- FIG. 1.
Free chlorine inactivation of CVB5 at pH 7 (▪) and pH 8 (□) and E1 at pH 7 (•) and pH 8 (○).
- FIG. 2.
Free chlorine inactivation of HAdV2 at pH 7 (▪) and pH 8 (□), CVB3 at pH 7 (•) and pH 8 (○), and E11 at pH 7 (▴) and pH 8 (▵).
- FIG. 3.
Monochloramine inactivation of HAdV40 at pH 7 (▪) and pH 8 (□), HAdV41 at pH 7 (•) and pH 8 (○), E1 at pH 7 (▴) and pH 8 (▵), and MNV at pH 7 (♦) and pH 8 (⋄).
- FIG. 4.
Monochloramine inactivation of CVB5 at pH 7 (▪) and pH 8 (□), CVB3 at pH 7 (•) and pH 8 (○), E11 at pH 7 (▴) and pH 8 (▵), and HAdV2 at pH 7 (♦) and pH 8 (⋄).
Tables
- TABLE 1.
CT values for free chlorine inactivation of study viruses with 0.2 mg of free chlorine/liter at 5°C
Virus CT value (mg·min/liter) 2-log10 CT 3-log10 CT 4-log10 CT pH 7 pH 8 pH 7 pH 8 pH 7 pH 8 HAdV2 0.02 0.04 0.06 0.12 0.15 0.27 HAdV40 <0.02 <0.02 <0.02 <0.02 <0.04 <0.04 HAdV41 0.005 <0.02 0.01 <0.02 NDc <0.03 CVB3 0.97 0.65 1.4 1.1 2.9 1.7 CVB5 3.6 4.7 5.5 7.6 7.4b 10b E1 0.96 0.99 1.3 1.3 1.5a 1.6 E11 0.82 0.54 1.0a 0.97 1.1a 1.4a MNV <0.02 <0.02 <0.02 <0.02 <0.07 <0.08 - TABLE 2.
CT values for 2-, 3-, and 4-log10 inactivation of study viruses with 1 mg of monochloramine/liter at 5°C
Virus CT value (mg·min/liter) 2-log10 CT 3-log10 CT 4-log10 CT pH 7 pH 8 pH 7 pH 8 pH 7 pH 8 HAdV2 600 990 1,000 1,600 1,500b 2,300 HAdV40 90 360 NDd ND ND ND HAdV41 58 190 190 ND ND ND CVB3 270 240 390 330 500a 420 CVB5 510 670 710 900 900 1,100 E1 8 8 15 18 42a,c ND E11 1,000 880 1,300 1,200 1,500a 1,400b MNV 26 36 70 78 150 170 ↵ a CT value for this level of inactivation extrapolated using the EFH model.
↵ b Only one replicate achieved the desired inactivation (the CT value for the second replicate was extrapolated).
↵ c Data from one replicate only.
↵ d ND, no data. The CT value could not be extrapolated due to asymptotic inactivation curves.
