Days After Culture Optical Density OF Culture on Methyl parathion of 5 ppm at 660 nm Optical Density of culture on Methyl Parathion of 10 ppm at 660 nm Optical Density of Culture on Methyl Parathion of 25 ppm at 660 nm Average Optical Density of Methyl Parathion at 660 nm Replica process 1 2 3 C 1 2 3 C 1 2 3 C 5 ppm 10 ppm 25 ppm 3 3.190 2.004 2.597 0.204 3.000 3.551 3.275 0.204 1.898 3.077 2.487 0.204 2.597 3.275 2.487 5 3.185 2.065 2.625 0.191 3.281 2.587 2.934 0.191 2.342 3.789 3.065 0.191 2.625 2.934 3.065 7 3.599 1.709 2.654 0.199 3.424 2.629 3.026 0.199 3.300 3.326 3.313 0.199 2.654 3.026 3.313 9 3.423 2.086 2.754 0.209 3.000 2.548 2.774 0.209 3.000 3.299 3.149 0.209 2.754 2.774 3.149 11 3.417 1.940 2.678 0.218 3.894 2.665 3.279 0.218 3.000 3.783 3.391 0.218 2.678 3.279 3.391 13 3.491 2.078 2.784 0.193 3.000 2.529 2.764 0.193 3.889 3.084 3.486 0.193 2.784 2.764 3.486 15 3.545 1.967 2.756 0.173 3.398 2.622 3.010 0.173 3.000 3.024 3.012 0.173 2.756 3.010 3.012

Table 1: Optical density of culture growing on organophosphate (Methyl Parathion).