Environmental Profiles of Chemical Flame-Retardant Alternatives for

Study type/
Method Innoculum Acclim Degradation Time Comments Reference
SCAS and
RDA
Analytical
Method
(Method AC­
72-M-S)
Activated
sludge with
domestic
sewage feed
Anaerobic Biodegradation: No data
Porous Pot Test: No data
Pyrolysis: No data
Hydrolysis as a Function of pH: No data
75.9%
recovery
24 hours Mixed liquor
extraction
Ref. 43
Sediment/Water Biodegradation:
Conclusion: The biodegradation of Proprietary J in the presence of pond and/or river sediment has
been adequately characterized.
Basis for Conclusion: Biodegradation of Proprietary J has been studied under a variety of
conditions and temperatures in the presence of both river and pond sediment. The weight of
evidence indicates the potential for Proprietary J to degrade under these environmental conditions.
Sediment Temp. T 1/2 Comments Reference
Pond water 25 0.44
days
Time interval was 0-3 days. Ref. 46
Pond sediment 25 39 Static conditions. Sediment was collected from
a pond made specifically for this experiment at
Glenlea Research Station, University of
Manitoba.
Initial Proprietary J concentration 0.10 :g/mL.
Sediment:water ratio 1:10.
Time interval was 2-105 days.
Ref. 46
Pond sediment 25 4.2 Time interval was 0-6 days. Ref. 47
Pond sediment 10 5.5 Time interval was 0-6 days. Ref. 47
Sedimentwater
microcosms
39% (0.1 mg concentration),
18% (1 mg concentration), and
5% (10 mg concentration) mineralization after
8 weeks with innoculum from Lake Chicot, AR
after 1 week of lag time.
13-31
Ref. 23