Table 2 : Hospital A Wastewater Genotoxicity as tested by the SOS chromotest (with and without metabolic activation) at different concentrations.

Without Metabolic Activation   With Metabolic Activation
Pit 1 Pit 1
  Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO GS   Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO 2AA GS
D 1 0.00 0.00 1.00 1.71 2.41 3.02 3.27 4.38 3.36 + D 1 0.00 0.00 1.00 3.24 3.50 3.65 3.85 5.02 3.23 4.47 +
D 5 0.00 0.00 1.00 3.38 3.58 4.59 4.97 5.80 5.47 + D 5 0.00 0.00 1.00 2.06 3.08 4.77 6.30 7.68 5.32 7.49 +
Pit 2 Pit 2
  Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO GS   Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO 2AA GS
D 1 1.00 0.00 1.00 0.99 0.87 0.83 0.79 1.02 4.12 - D 1 1.00 0.00 1.00 0.67 1.08 1.00 1.01 1.38 4.09 5.53 -
D 5 1.00 0.00 1.00 0.52 0.46 0.69 0.52 0.62 4.37 - D 5 1.00 0.00 1.00 0.68 0.97 0.80 0.69 1.33 2.75 3.25 -
Pit 3 Pit 3
  Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO GS   Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO 2AA GS
D 1 1.00 0.00 1.00 0.73 0.79 0.70 0.80 0.83 2.82 - D 1 1.00 0.00 1.00 0.75 0.96 1.16 1.06 1.04 2.54 3.15 -
D 5 1.00 0.00 1.00 0.73 0.66 1.00 1.11 1.33 4.12 - D 5 1.00 0.00 1.00 0.58 0.86 0.73 1.19 1.42 2.55 3.86 -
Pit 4 Pit 4
  Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO GS   Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO 2AA GS
D 1 1.00 0.00 1.00 0.58 0.61 1.28 0.68 0.85 3.84 - D 1 1.00 0.00 1.00 1.55 1.61 1.86 1.97 2.20 1.65 4.67 +
D 5 1.00 0.00 1.00 0.76 0.94 0.97 1.02 1.12 2.21 - D 5 1.00 0.00 1.00 0.68 0.89 0.97 1.15 1.31 2.54 3.15 -
Pit 5 Pit 5
  Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO GS   Water Media DMSO 1/4 1/2 3/4 x1 x2 4NQO 2AA GS
D 1 1.00 0.00 1.00 0.70 0.61 0.51 0.57 1.03 2.64 - D 1 1.00 0.00 1.00 1.42 1.44 1.80 2.85 3.22 4.19 3.40 +
D 5 1.00 0.00 1.00 0.48 0.67 0.83 0.69 0.89 3.28 - D 5 1.00 0.00 1.00 1.56 1.46 1.80 1.64 2.02 2.80 3.78 +

Induction Factors for samples collected at Day 1 (D1) and Day 5 (D5) were calculated; genotoxic samples (GS) are in bold.

Abdel-Massih et al.Journal of Environmental Engineering and Ecological Science  2016 5:2DOI : 10.7243/2050-1323-5-2