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Ecotoxicological information

Toxicity to aquatic plants other than algae

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Link to relevant study record(s)

Description of key information

High quality studies are available in the database of toxicity to aquatic plants other than algae. A lumped data set for nickel-based compounds was considered for endpoint coverage. The lowest EC10 value was 8.2 µg Ni/L for freshwater plants.

Key value for chemical safety assessment

EC10 or NOEC for freshwater plants:
8.2 µg/L

Additional information

Freshwater (Ni):


From the database of chronic nickel toxicity to freshwater plants, individual NOEC/L(E)C10 values reported for higher plant species. NOEC/L(E)C10 values range from6.11to 75 μg/L for Lemna minor (Gopalapillai et al., 2013; Schlekatet al., 2010) and 50 to 80 μg/L for Lemna gibba (Klaine and Knuteson, 2003) for a final range of6.11to 80 μg/L for the higher plants Lemna gibba and Lemna minor.


 


The following table indicates those NOEC or EC10 values of high quality that have been carried forward for the HC5-& PNEC derivation.


 


 



























  Key Study


(freshwater plant)



Selected values for the most sensitive endpoints used for derivation of the freshwater HC5



Species



Endpoint



Value (s) (ug/L)



Klaine & Knuteson, 2003



Lemma gibba



EC10



70



Schlekat et al., 2010



Lemna minor



EC10



8.2-75.0



 


 


CONCLUSION EC10 8.2 µg Ni/L (= EC10 13.5 µg NiF2/L)

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