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Description of key information

Study results of the group of the following nitrates were evaluated : Ammonium nitrate, calcium nitrate, calcium nitrate double salt, magnesium nitrate, Nitcal-K, potassium nitrate and sodium nitrate. The read-across rationale can be found in the document attached in the appropriate target records.

All nitrates show a low or negligible toxicity to aquatic invertebrates, fish and algae.

Additional information

Study results of the group of the following nitrates were evaluated : Ammonium nitrate, calcium nitrate, calcium nitrate double salt, magnesium nitrate, Nitcal-K, potassium nitrate and sodium nitrate.

 

Toxicity of nitrates to fish:

Table 1: Available data

study type

Results (only worst case reliable results are given)

acute

LC50 > 100 mg/L

long-term

NOEC 58 mg/L (study on sodium nitrate)

 

All nitrates show a low or negligible toxicity to fish.

 

Toxicity of nitrates to aquatic invertebrates:

 

Table 2: Available data

study type

Results (only worst case results (LC50) are given)

acute

> 100 mg/L

long-term

-

 

All nitrates show a low or negligible toxicity to aquatic invertebrates.  

No reliable long-term studies are available for aquatic invertebrates.

 

Toxicity of nitrates to algae:

 Table 3: Available data

study type

Results (only worst case results are given)

acute

EC50 > 100 mg/L

long-term

NOEC 100 mg/L

 

All nitrates show a low or negligible toxicity to algae.

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