Ambient Water Quality Criteria for Fluoride

Water Quality

Table 5.12 Fluoride Accumulation in Freshwater Fish as a Function of Ambient Fluoride Levels and Exposure Time

Salmo trutta (brown trout)

mg/L F	Salt	Ref.	Time	Conditions and Accumulation Rate
12-14	river	Neuhold & Sigler, 1960	1-3 yr	Madison River,Yellowstone Park, bone levels of 1600 mg/kg in 1-3 year old fish
10	NaF	Wright, 1977	200-h	12°C, 2 cm, pH 6.8, hardness 73, whole body F levels in mg/kg-18, concentration 1.8 times
5	NaF	Wright, 1977	200-h	12°C, 2 cm, pH 6.8, hardness 73, whole body F levels in mg/kg-10, concentration 2.0 times
20	NaF	Wright, 1977	200-h	12°C, 2 cm, pH 6.8, hardness 73, whole body F levels in mg/kg-30, concentration 1.5 times

Catla catla fry

fluoride	duration in hours
concentration	24	48	72	96
<0.6	85.3	85.1	84.4	87.5
1.3	95.3	97.8	93.3	99.6
2.3	127.9	133.6	136.4	162.8
4.2	159.6	165.2	199.1	227.0
7.3	196.7	254.5	317.0	389.2
13.0	382.1	496.5	630.0	766.7

Though not explicitly stated in the reference, these values are assumed to be ash weight. Wet weight equivalents would be about 1/15 these table values.
2.5 to 4.0 cm, 900 to 1200 mg, dissolved oxygen 5.6 to 6.5, 37°C, pH 7.0 to 7.3, accumulation of Fluoride in the whole body in mg/kg (Pillai & Mane, 1985).
Natural log of mg/kg = 4.2133 + 0.1389 (mg/L fluoride) + 0.0056(days).