Research Article

Genotoxicity Study with Special Reference to Comet Test in the Blood Cells of Workers Exposed to Sewage Water

Table 5

Further measurement of elements.

FactorControl initial )
1st reading
Control ()
2nd reading
Workers, working <20 years,
, 1st reading
Workers, working <20 years,
2nd reading
Workers, working >20 years,
, 1st reading
Workers, working >20 years,
2nd reading

Pb (M ± SD) (mg/L) 0.132 ± 0.093 0.133 ± 0.092 0.318 ± 0.12 0.319 ± 0.123 0.47 ± 0.36 0.4780 ± 0.366
Cd (M ± SD) (mg/L)0.0032 ± 0.004 0.00325 ± 0.004 0.0141 ± 0.004 0.0143 ± 0.005 0.02 ± 0.01 0.021 ± 0.0087
Fe (M ± SD) (mg/L)1998.52 ± 52.66 1998.57 ± 52.56 1927.12 ± 74.04 1928 ± 74 1677.28 ± 99.94 1677.47 ± 99.86
Zn (M ± SD) (mg/L)31.5 ± 1.80 31.44 ± 1.811 26.61 ± 2.23 26.65 ± 2.24 34.27 ± 2.74 34.29 ± 2.71

There is no significant difference between the 1st reading and the repeated 2nd reading of the same population group for any concern element.
Limit of detection for Pb and Cd is 0.001 ppm (mg/L).
Limit of detection for Fe and Zn is 5 ppm (mg/L).