Registration Dossier
Registration Dossier
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EC number: 202-179-2 | CAS number: 92-69-3
Endpoint summary
Administrative data
Description of key information
Additional information
According to REACH Annex IX (Section 9.4) Terrestrial toxicity studies do not need to be conducted if direct and indirect exposure to the soil compartment is unlikely.
Direct and indirect exposure to soil is unlikely because P-PP is a high melting point, low vapour pressure solid. It is supplied as a powder and is added to reaction vessels at a limited number of industrial sites where it is completely reacted with resins – it no longer exists as P-PP. Water is not used in the process, nor for cleaning, so there are no solutions disposed of to stp and consequently none available from sludge which could be transferred to soil. At the same time the recommended RMMs for handling P-PP, and basic good practice in handling chemicals minimise direct local emissions to air and consequently fall out on to soil. Any solid wastes and sacks used for delivery will also be disposed of according to good practice by incineration.
However, an exposure and risk assessment for soil has been carried out, making a conservative assumption about potential indirect exposure from the air, to identify any potential cause for concern. As there are no ecotoxicology endpoint studies available for terrestrial organisms a PNEC has been calculated using the equilibrium partitioning method based on the freshwater PNEC of 0.00221 mg/L and a Koc of 270. The PNEC soil was calculated according to Chapter R.10: Characterisation of dose [concentration]-response for environment. The resulting PNEC soil is 0.0122 mg/kg soil dw.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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