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Toxicity of Fire Retardant Chemicals to Aquatic Organisms: Progress Report

Table 2

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Table 2. Life stages of rainbow trout tested with five fire retardant chemicals in ASTM soft and hard waters. Sizes are mean (range in parenthesis) of 10 control fish

Life Stage	Water Type	Age1	Weight(g)	Length (mm)
Egg	Soft	3732	0.0898	0.095 ml4
			(0.0896-0.0899)	d=5.66 mm
	Hard	3732	0.0898	0.095 ml4
			(0.0896-0.0899)3	d=5.66 mm
Embryo-larval	Soft	5272	-	-
	Hard	5272	-	-
Sac-fry	Soft	5	0.101	21
			(0.076-0.120)5	(19-22)5
	Hard	5	0.101	21
			(0.076-0.120)5	(19-22)5
Swim-up	Soft	21	0.094	25
			(0.069-0.114)5	(23-26)5
	Hard	21	0.094	25
			(0.069-0.114)5	(23-26)5
60 day	Soft	65	0.622	44
			(0.252-1.002)6	(34-52)6
	Hard	58	0.415	39
			(0.220-0.663)6	(33-45)6
90 day	Soft	90	1.496	57
			(0.798-2.296)7	(47-64)7
	Hard	83	1.189	53
			(0.813-1.735)7	(49-60)7

Fish source: Ennis NFH, Ennis, MT. Strain: McConaghy
¹ = Days post median hatch day to test initiation;
² = Daily temperature units (DTU) to test initiation. 1 DTU = 1F for 24 hours;
³ = Average of 2 pools of 10 eggs each;
⁴ = Volume displacement; d = diameter;
⁵ N = 20 (pool of hard and soft control treatments);
⁶ N = 20;
⁷ N = 30;

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