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Description of key information

- Acute inhalation toxicity: Standard acute method (OECD 403): LC50,4h > 5.5 mg/L air

Key value for chemical safety assessment

Acute toxicity: via inhalation route

Endpoint conclusion
Dose descriptor:
5 500 mg/m³ air

Additional information

No mortality or toxicity effects were observed in the key study for acute inhalation toxicity at a tested concentration of 5.5 mg/L.

The LC50 was determined to be > 5.5 mg/L for the inhalation route.

Justification for classification or non-classification

Based on the result of the key study Phosphorous slag does not need to be classified for acute inhalation toxicity when considering the criteria outlined in Annex I of 1272/20008/EC and Annex VI of 67/548/EEC.