Susceptibility of kutum to the impact of lead toxicity was
found to increase in mortality with an increase in the
concentration of lead whereas in the control, mortality
was virtually absent (Table 3).
Results according to SPSS18 analysis showed the
median lethal concentration (LC50) of lead to kutum for
24, 48, 72 and 96 h of exposure as 315.841, 298.456,
281.419 and 268.065 ppm, respectively. There was a
gradual decrease in the slope function corresponding to
the increase in the exposure period from 24 h to 96 h.
Observations on upper and lower confidence limits reveal
a decreasing trend from 24 to 96 h. Also evident was that
an increase in exposure period influences increase in
mortality
Susceptibility of kutum to the impact of lead toxicity wasfound to increase in mortality with an increase in theconcentration of lead whereas in the control, mortalitywas virtually absent (Table 3).Results according to SPSS18 analysis showed themedian lethal concentration (LC50) of lead to kutum for24, 48, 72 and 96 h of exposure as 315.841, 298.456,281.419 and 268.065 ppm, respectively. There was agradual decrease in the slope function corresponding tothe increase in the exposure period from 24 h to 96 h.Observations on upper and lower confidence limits reveala decreasing trend from 24 to 96 h. Also evident was thatan increase in exposure period influences increase inmortality
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