Table 3 : Hospital B 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 1.00 0.00 1.00 0.70 0.70 0.70 0.70 0.90 3.70 - D 1 1.00 0.00 1.00 0.71 0.95 0.83 0.74 0.84 2.37 1.74 -
D 5 1.00 0.00 1.00 0.90 0.90 1.00 0.80 0.90 3.80 - D 5 1.00 0.00 1.00 0.89 0.89 0.89 0.79 0.66 2.95 2.22 -
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 0.50 0.50 0.60 0.70 0.50 5.70 - D 1 1.00 0.00 1.00 0.51 0.53 0.54 0.52 0.65 1.84 3.06 -
D 5 1.00 0.00 1.00 0.80 1.20 1.10 0.90 1.50 3.10 - D 5 1.00 0.00 1.00 0.57 1.00 0.78 0.61 0.83 6.25 2.31 -
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 1.05 0.80 1.10 1.60 0.80 5.80 - D 1 1.00 0.00 1.00 1.05 1.08 0.88 0.86 0.84 3.70 2.53 -
D 5 1.00 0.00 1.00 0.30 0.40 0.50 0.50 0.20 1.90 - D 5 1.00 0.00 1.00 0.60 1.14 0.76 0.52 0.83 5.93 3.12 -
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 0.50 0.50 0.60 0.50 0.70 4.60 - D 1 1.00 0.00 1.00 0.58 0.58 0.91 0.86 0.83 3.14 1.89 -
D 5 1.00 0.00 1.00 1.40 0.80 0.60 0.80 1.04 2.20 - D 5 1.00 0.00 1.00 0.44 0.59 0.80 0.67 0.76 4.28 2.61 -

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