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Long-term toxicity to fish

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Description of key information

The most sensitive NOEC for 2-aminoethanol was derived from an early life stage test in 1996 with 1.2 mg/L.

Key value for chemical safety assessment

Additional information

(2-hydroxyethyl)ammonium nitrate is soluble in water and dissociates to (2 -hydroxyethyl)ammonium and nitrate.

Since there are no studies available on the aquatic toxicity of the test substance, published literature about the toxic effects of 2 -aminoethanol has been consulted alternatively.

The most sensitive NOEC (1.2 mg/L) was derived after a 30 -day exposure period of 2 -aminoethanol (CAS 141-43-5) to the species Oryazis latipes [NITE, 1996]. The 100 day NOEC for reproduction, percent hatch and percent viability of Salvelinus fontinalis was 1.77 mg/L. The 100 day NOEC for survival, length and weight of this species was > 20 mg/L [Mayer et al., 1986].

Nitrate has not been tested for longterm effects on fish because all data available concerning substances belonging to the nitrate category show a very low toxicity. In addtion, nitrates have a very high water solubility and their chemical properties do not indicate bioaccumulation. Therefore, the study is not considered necessary.