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. 2021 Dec 8;18(24):12967. doi: 10.3390/ijerph182412967

Table 1.

Percent mortality of Chanos chanos exposed to different concentrations of arsenic for different periods (ppm).

Hours of Exposure LC50 L.C.L U.C.L Regression Equation Calculated X2 Value Table X2 Value
24 3.649099 4.0547773 0.284008 Y = 1.491007 + 6.241699X 13.9002 9.49
48 3.185816 3.661036 2.772282 Y = 2.731714 + 4.507538X 19.97842 11.07
72 2.890422 3.139665 2.660965 Y = 3.6252 + 2.982463X 1.457794 11.07
96 2.247149 2.464002 2.04938 Y = 4.172045 + 2.354607X 8.465149 12.59

Abbreviations and notations: LC50—lethal concentration required to kill 50% of the population; UCL—upper confidence limit; LCL—lower confidence limit (present study recorded 95% confidence levels, which is ideal).