Quantitative Characterization of the Toxicities of Cd-Ni and Cd-Cr Binary Mixtures Using Combination Index Method

Table 3

Concentration ratio of Cd-Cr and EC₅₀ value of 10 binary mixture rays.

Binary mixture	Rays			EC50
		Cd	Cr
Cd-Cr toxicity to C. pyrenoidosa	R1	0.9341	0.0659
	R2	0.8500	0.1500
	R3	0.7392	0.2608
	R4	0.5863	0.4137
	R5	0.3618	0.6382
Cd-Cr toxicity to S. capricornutum	R1	0.0645	0.9355
	R2	0.1470	0.8530
	R3	0.2563	0.7437
	R4	0.4081	0.5919
	R5	0.6328	0.3672