Table 2:

COPAS measurements on wild type C. elegans after a 2-week treatment with metal chlorides and subsequent PI staining.

Compound	ppm	na	CRF>50b	TOFc	st. dev	EXTC	st. dev
HgCl2	0	2887	0.06	969	189	848	148
HgCl2	7.8	2912	0.16	981	186	825	147
HgCl2	31.25	2934	0.81	815	195	583	134
HgCl2	125	d
HgCl2	500	d
CdCl2	0	2960	0.06	914	205	809	153
CdCl2	7.8	2932	0.13	940	157	683	118
CdCl2	31.25	2992	0.66	681	167	449	106
CdCl2	125	e
CdCl2	500	d
CuCl2	0	2856	0.07	949	194	840	160
CuCl2	7.8	2765	0.11	952	229	820	203
CuCl2	31.25	2850	0.19	968	180	822	150
CuCl2	125	2935	0.56	683	184	496	134
CuCl2	500	d
KCl	0	2920	0.07	942	192	829	147
KCl	500	2939	0.06	899	196	816	143

^an represents the number of readings with red values greater than zero and TOF values between 199 and 1501 for each condition analyzed by COPAS in a single experiment

^bthe fraction of worms in each sample with a COPAS red fluorescence value from PI greater than 50 (instrument specific units)

^cthe average and standard deviation of EXT and TOF values for each sample condition

^dall animals were dead before the experiment was completed and were not analyzed by COPAS

^eCdCl2 induced agglomeration of media components at high concentrations. While some animals were still moving after two weeks at 125 ppm CdCl2, they could not be separated from the media by centrifugation and were not analyzed.