. 2020 Dec 20;10(12):2559. doi: 10.3390/nano10122559

Table 2.

Effect concentrations derived from concentration-response curves of the single nanoparticles and the mixtures ^a.

Materials		Scenedesmus obliquus		Chlorella pyrenoidosa
Single Toxicity		EC₁₀ (mg/L)	EC₅₀ (mg/L)	EC₁₀ (mg/L)	EC₅₀ (mg/L)
TiO₂ NPs		2.33	19.75	0.13	5.38
TiO₂ NPs		[1.75–3.44]	[17.02–23.00]	[0.11–0.14]	[3.36–8.23]
TiO₂ NTs		13.16	211.26	0.002	4.87
TiO₂ NTs		[5.08–25.75]	[152.01–427.73]	[0.002–0.004]	[2.81–9.66]
Combined Toxicity		EC₅₀ (mg/L)		EC₅₀ (mg/L)
TiO₂ NPs + NTs	OBS	85.04 [69.50–102.54]		2.05 [1.16–3.88]
	IA	56.30 [56.17–56.42]		1.08 [0.91–1.34]
	CA	99.46 [99.09–99.81]		5.96 [4.97–7.36]

^a EC₁₀/EC₅₀ = 10%/mean effect concentration. The 95% two-sided confidence interval is shown in []; OBS = observed combined toxicity; IA = independent action; CA = concentration addition.