2.4. Water Quality during Experiments

Water quality was ensured throughout the experiment. Dissolved oxygen (DO), temperature, pH, electrical conductivity (EC) and total dissolved solid (TDS) of the test media (water) were monitored using Multimeter (YSI) to ensure optimal water quality [32]. The water quality parameters are presented in Table 4 which were monitored after 24-h of exposure of the endosulfan, dieldrin and heptachlor.

Physico-chemical characteristics of water during the experiment.

Although temperature and pH play a vital role on the toxicity performance of pesticides [20,34,35,36], in our study the water quality parameters remained within acceptable limits and only toxic effects of the pesticides were apparent here.