Document 5LBZ9RRXxwQ4QLdZxLNbN5nb8
ACTIVATED SLUDGE RESPIRATION INHIBITION
TEST SUBSTANCE
Identity:
Perfluorooctanoic add, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, orFC-143. (Octanoic add, pentadecafluoro, ammonium salt, CAS # 3825-26-1 )
Remarks: The 3M production lot number was 37. The test sample is FC143. It's purity was not sufficiently characterized, though current information indicates it is a mixture of 96.5 - 100% test substance and 0 - 3.5% C6, C7, and C9perfluoro analogue compounds..
METHOD:
Methods: Protocol Reference EAR, 11/8/79. Test type: Not noted. GLP: No Year Completed: 1980 Test organism source: Activated Sludge mixed liquor from Metro Wastewater Treatment Plant, St. Paul, Minnesota
RESULTS
Nominal concentrations: Bk control, 1000 mg/L Elem ent values: No acute inhibitory effect on activated sludge respiration
rate at 1000 mg/L with a contact time of 7 minutes.
Element value based on nominal concentrations.
CONCLUSIONS
Limited contact time estimates that ammonium perfluorooctanoate is not expected to inhibit the activity of activated sludge.
Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133
DATA QUALITY
Reliability: Klimisch ranking 3. Testing lacks record of methodology used. The method was not an agency approved method. There is a lack of characterization of the test sample and test solutions not analyzed for test substance concentrations.
REFERENCES
C037S7
This study was conducted by the 3M Company, Environmental Laboratory, St. Paul, MN, Lab Request number 5625S. O T H E R ___________________________________________________________ Last changed: 5/24/00
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ENVIRONMENTAL LABORATORY SUMMARY SHEET TEST: Acute T o x ic ity o f a Compound to A ctiv ate d Sludgo r
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SAMPLE DESCRIPT.: F - 1 4 3 , t $ T - * 3 7
ANALYST: W. A . SCHIL
DATE ANALYZED: - 0 4 - g O
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TIME - minutes
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ENVIRONMENTAL ENGR. LAB - WORK SHEET
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Reviewed by:
003790
