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Ecotoxicological information

Toxicity to terrestrial plants

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Description of key information

Most sensitive data (with background correction) on chronic single-species toxicity tests for different plant species are summarised in the EU-RAR (2008). According to these data, the effect concentrations for Nickel hydrogencitrate were calculated:
Hordeum vulgare: EC10 (4d, root length) = 100.7 mg Trinickel Dicitrate/kg dw
Lycospersium esculentum: EC10 (28d, yield of shoots) = 34.6 mg Trinickel Dicitrate/kg dw
Spinacia oleracea: NOEC (30d, yield of shoots) = 40.9 mg Trinickel Dicitrate/kg dw
Avena sativa: EC10 (150d, yield of grains) = 56.7 mg Trinickel Dicitrate/kg dw
Medicago sativa: EC10 (83d, yield of tops) = 151.0 mg Trinickel Dicitrate/kg dw
Raphanus sativus: NOEC (30d, yield not further specified) = 276.9 mg Trinickel Dicitrate/kg dw
Allium cepa: EC10 (56d, yield not further specified) = 188.8 mg Trinickel Dicitrate/kg dw
Trigonella poenumgraceum: EC10 (56d, yield not further specified) = 308.4 mg Trinickel Dicitrate/kg dw
Lolium perenne: EC10 (56-64d, yield not further specified) = 406.0 mg Trinickel Dicitrate/kg dw
Lactuca sativa: EC10 (63d), yield of leaves) = 107.0 mg Trinickel Dicitrate/kg dw
Zea mays: EC10 (45-50, no data) = 185.7 mg Trinickel Dicitrate/kg dw

Key value for chemical safety assessment

Additional information

Data on single-species toxicity tests resulting in L(E)C10/NOEC values for plants are summarised in Table 3.2.3-1, given in the EU-RAR, 2008 (see attachment). Values selected for the effects assessment are underlined. In the total risk approach 68 individual high quality L(E)C10/NOEC values (for 11 different species) are selected ranging from 11.0 mg Ni/kg for Lycopersicum esculentum to 1,127 mg Ni/kg for Hordeum vulgare (corresponding to 34.6 and 3547 mg Trinickel Dicitrate/kg dw). Detailed data for the lowest value for Lycopersicum esculentum were not public available, so only the most sensitive data, which were public available, could be shown here in detail.