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Environmental fate & pathways

Endpoint summary

Administrative data

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Additional information

"Not rapidly degradable" applies as the substance is biodegraded in a test for ready biodegradability to 54 % within 28 days. Although, there are papers available that for such an UVCB-substance, and also for closely related substances such as Rosin, other criteria should be applied because the degradation of the single substances included in the UVCB substance are degraded one after the other under the strict conditions of the ready biodegradability tests and therefore need more time for degradation (expressed by the 54 % for Resin 835A just not reaching the threshold of 60 %) compared to environmental conditions or even more to conditions in a sewage treatment plant.

The substance is inherently degradable. 54 % are biodegraded (to CO2) within 28 d in a test for ready biodegradability under its strict conditions, so that it can be assumed that Resin 835A is completely mineralized in a WWTP by adapted microorganisms and only a negligible concentration is expected in the effluent and thereby in the receiving river.