3.2. Cell viability
Cell viability was measured in single cells prepared from each
tissue expose to different concentrations of NaAsO2. Cell viabilities
in different tissues were found to be dose and time dependent. Liver
tissue was most prone to injury with the lowest value measuring
76.33 ± 4.35% in 56 ppm at 192 h of exposure but with an
exception in 3 ppm at 48 h of exposure where highest cell viability
(87.67 ± 4.17%) was recorded. On an overall observation it was
found that gill tissue was least affected among the three tissues
examined in this study as shown in Fig. 1.