Registration Dossier
Registration Dossier
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EC number: 210-871-0 | CAS number: 624-92-0
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The substance has a logKow of less than 2, therefore this screening criterion doesn't qualify DMDS for B.
A 310 study is available with 50-60% biodegradation in 28 days
Although no biodegradation has been observed so far in water or water/sediment compartment, biodegradation in soil has been demonstrated under aerobic and anaerobic conditions with T1/2 << 120 days (14 days in anaerobic conditions). Additionnaly, several experiments have been carried out in atmospheric chambers of small and large size that atmospheric half-life of DMDS is about 40 minutes in normal conditions. This duration can decrease to 15 minutes in polluted areas (in presence of NOx). Photodegradation products identified are HCHO, SO2, CH3SO3H which are not themselves persistents. Conclusively, DMDS does not qualify for P.
DMDS qualifies for T, based on chronic toxicity to aquatic invertebrates (NOEC repro daphnia = 0.0025 mg/L)
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