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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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waiving

Key value for chemical safety assessment

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Available data and read-across from L-arginine lead to the conclusion that the substance has no adverse effects on aquatic organisms. Further L-arginine-HCl has a low potential to absorb to organic material. Since L-arginine-HCl is readily biodegradable (its carbon backbone is mineralised rapidly in aerobic systems), has no potential of bioaccumulation beyond natural homeostastic concentrations, is not applied directly to soil and is not expected to be transferred indirectly to soil in significant quantity via disposal of STP sludges or aerial deposition, significant exposure of the terrestrial compartment to L-arginine-HCl is unlikely to occur. Therefore soil is not expected to be a compartment of concern. The risk to soil dwelling macroorganisms is negligible. For this reason and in accordance with REACH Annex IX Section 9.4. column 2 this study does not need to be conducted.