Table 1.

Chronic values from experiments included in calculation of species mean chronic values (SMCV) and genus mean chronic values (GMCV)

Rank	Scientific name	Common name	Chronic value	SMCV	GMCV	References
			(µg/L)	(µg/L)	(µg/L)
12	Dugesia dorotocephala	Planarian	40,134	40,134	40,134	This study
11	Orconectes limosus	Crayfish	22,000	22,000	22,000	Boutet and Chasemartin (1973)
10	Chironomus riparius	Midge	19,818	19,811	19,811	Radford (1997)
9	Salvelinus fontinalis	Brook trout	9237	9237	9237	Sykora et al. (1975)
8	Hexagenia limbata	Mayfly	7863	7863	7863	This study
7	Salmo trutta	Brown trout	5146	5146	5146	This study
6	Oncorhynchus kisutch	Coho salmon	4870	3605	3467	Smith and Sykora (1976)
	Oncorhynchus kisutch	Coho salmon	3300			Brenner and Cooper (1978)
	Oncorhynchus kisutch	Coho salmon	2915			Updegraff and Sykora (1976)
	Oncorhynchus mykiss	Rainbow trout	1483	3335		Goettl and Davies (1977)
	Oncorhynchus mykiss	Rainbow trout	7500			Steffens et al. (1993)
5	Bufo boreas	Boreal toad (tadpole)	3145	3145	3145	This study
4	Daphnia magna	Cladoceran	4380	4380	2048	Biesinger and Christensen (1972)
	Daphnia pulex	Cladoceran	958	958		Birge et al. (1985)
3	Prosopium williamsoni	Mountain whitefish	1318	1318	1318	This study
2	Lumbriculus variegatus	Worm	870	870	870	This study
1	Pimephales promelas	Fathead minnow	910	688	688	Birge et al. (1985)
	Pimephales promelas	Fathead minnow	520			Smith et al. (1973)

Fe concentrations in µg/L total or total recoverable Fe. Excludes mesocosm experiments