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EC number: 232-140-5
CAS number: 7789-00-6
The results of the chronic fish toxicity studies evaluated in the EU RAR
are summarised below:
30-day NOEC (g)
60-day NOEC (g)
Sauter et al. (1976)
20-day NOEC (s)
30-60-day NOEC (g)
60-day NOEC (s)
8-m NOEC (g)
8-m NOEC (m)
40-day NOEC (m)
40-day NOEC (g)
Sloof and Canton (1983)
7-day NOEC (g)
7-day NOEC (s)
412-day NOEC (s)
9-w LOEC (g)
412-day NOEC (g)
30-day NOEC (m)
De Graeve et al. (1991)
Broderius and Smith Jr. (1979)
28-day NOEC (m)
28-day NOEC (g)
all results are from tests with potassium dichromate except:
concentrations as Cr. (s) - survival; (m) - mortality; (g) - growth; (r)
the authors viewed this result as a temporary effect and did not
consider it significant in deriving a maximum allowable concentration.
The value has not been included in the derivation of a mean NOEC for
growth in the RAR.
From the EU RAR the effects of chromium (VI) have been reported on fish
of different ages and on survival, growth and reproduction. Chromium
(VI) (mainly as potassium dichromate) has been shown to cause a variety
of sublethal haemotological, pathological,physiological and behavioural
effects on fish.
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