. Author manuscript; available in PMC: 2011 Jun 1.

Published in final edited form as: Toxicol Appl Pharmacol. 2010 Mar 4;245(2):153–159. doi: 10.1016/j.taap.2010.02.014

Table 4.

Comparison of average C. elegans reproduction EC₅₀s with rodent oral LD₅₀s

Chemical	C. elegans EC₅₀^a	Mouse LD₅₀^b	Rat LD₅₀^b
Parathion	1.51	5	2
Cadmium	185	60	88
Methadone	286	70	86
Diquat	745	233	120
Paraquat	1,921	120	150
EMS	4,697	470	350^c
Caffeine	10,097	127	192

EC₅₀s expressed as μM

Oral LD₅₀s expressed in mg/kg (Lewis, 2004)

Intraperitoneal injection LD₅₀ expressed as mg/kg (Lewis, 2004)