Sublethal Effects of Ionic and Nanogold on the Nematode Caenorhabditis elegans

Table 3

Effect concentration (mg/L) values of nanogold and its bulk chemical equivalent.

	Au	Toxicity parameters with upper and lower confidence limits (mg/L) 95%-CL
		EC10		EC20		EC50		NOEC	LOEC
Growth	nAu	95.8	209.8	n.d.	n.d.	n.d.	n.d.	n.d.	n.d.
			43.8		n.d.		n.d.
	Ionic Au	0.97	1.09	1.06	1.23	1.24	1.74	0.5	1
			0.87		0.90		0.87
Reproduction	nAu	68.5	n.d.	91.9	n.d.	161.3	n.d.	>=100	>100
			n.d.		n.d.		n.d.
	Ionic Au	0.002	0.074	0.007	0.20	0.06	3.19	n.d.	n.d.
			0		0		0.001

(1) n.d.: not determined. (2) Values within the same column with the same superscript symbol (a) are statistically different (). This could only be determined for values with both upper and lower confidence limits.