TABLE 2.

LC₅₀ Values After 2, 4, 8, Or 15 Days of Exposure for Full And Regenerating Worms

Chemical	Worm condition	Day 2	Day 4	Day 8	Day 15
Acrylamide	Full	6787 µM	2720 µM	991 µM	785 µM
	Regen	6787 µM	1462 µM	1208 µM	904 µM
Chlorpyrifos	Full	238 µM	181 µM	177 µM	67 µM
	Regen	386 µM	252 µM	209 µM	135 µM
Dichlorvos	Full	11.9 µM	2.86 µM	1.92 µM	1.73 µM
	Regen	N/A	6.07 µM	3.40 µM	3.04 µM
DMSO	Full	7.08%	7.03%	4.13%	3.35%
	Regen	7.06%	6.80%	5.03%	3.75%
Ethanol	Full	1.94%	1.92%	0.90%	0.70%
	Regen	2.00%	1.98%	1.34%	0.75%
Glucose	Full	139 mM	110 mM	105 mM	74 mM
	Regen	144 mM	143 mM	125 mM	83 mM
Methanol	Full	5.88%	5.31%	5.18%	4.92%
	Regen	6.38%	5.68%	5.63%	5.51%
Permethrin	Full	653 µM	500 µM	384 µM	139 µM
	Regen	1000 µM	784 µM	609 µM	382 µM
SDS	Full	2.22 mg/l	2.26 mg/l	2.26 mg/l	1.82 mg/l
	Regen	1.24 mg/l	1.57 mg/l	1.57 mg/l	1.57 mg/l
TritonX-100	Full	36 mg/l	34 mg/l	31 mg/l	25 mg/l
	Regen	41 mg/l	40 mg/l	39 mg/l	35 mg/l

LC₅₀ was quantified using a modified Hill’s equation (see “Materials and Methods” section). N/A indicates no deaths were observed.