Table 5.

The AI value and toxicity level of the toxicity biosensor for toxicant mixture determination.

Toxicant Mixture	AI	Toxicity Rate
(1:1 w/w)
Pb(II) + Zn(II)	−2.716	Antagonistic
Cu(II) + Zn(II)	−0.892	Antagonistic
Cu(II) + Pb(II)	−0.867	Antagonistic
Cd(II) +Zn(II)	−0.397	Antagonistic
Cd(II) + Pb(II)	−0.906	Antagonistic
Cd(II) + Cu(II)	−0.271	Antagonistic
(2:1 w/w)
Pb(II) + Zn(II)	−2.168	Antagonistic
Cu(II) + Zn(II)	−0.346	Antagonistic
Cu(II) + Pb(II)	−0.324	Antagonistic
Cd(II) +Zn(II)	−1.556	Antagonistic
Cd(II) + Pb(II)	−2.755	Antagonistic
Cd(II) + Cu(II)	−0.261	Antagonistic
(1:2 w/w)
Pb(II) + Zn(II)	−1.499	Antagonistic
Cu(II) + Zn(II)	−1.032	Antagonistic
Cu(II) + Pb(II)	−0.795	Antagonistic
Cd(II) +Zn(II)	−0.782	Antagonistic
Cd(II) + Pb(II)	−0.517	Antagonistic
Cd(II) + Cu(II)	−2.450	Antagonistic
(1:1:1 to 1:1:1:1 w/w)
Cu(II) + Cd(II) + Pb(II)	−2.811	Antagonistic
Cu(II) + Cd(II) + Zn(II)	−2.894	Antagonistic
Cd(II) + Pb(II) + Zn(II)	−1.285	Antagonistic
Cu(II) + Cd(II) + Pb(II) + Zn(II)	−5.447	Antagonistic