Document xjObzRDQoVjE4GrmdBYDbLq86
ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA)
TEST SUBSTANCE
Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, oras a component ofFC-600. (1-Octanesulfonicacid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium salt,CAS # 2795-39-3)
Remarks: The 3M productionlotnumber was not noted. The test sample isFC-600 (2-15-77RAW). Currentinformatioinndicatesitisa mixtureof 1.0% PFOS, 81.20% water,12.00% diethyleneglycolbutyl ether,1.00% sodium octylsulfate2,.00% propane Sultonefoamer, 1.00% sodium decylsulfate0,.85% xanthangum, 0.1% N-(3-chloroallyl) hexaminium chloride0,.80% starch,and 0.05 % benzotriazole.
The followingsummaty applies to a mixture with incompletely characterizedconcentration of impurities.Data may not accurately reflectthe toxicityof the fluorochemical component of the test sample.
This studyisthe firsotf3 daphnia studiesconducted to determinethe toxicitoyf FC-600 afterbeingtreatedthrougha SCAS reactor.There isno syntheticsewage medium present.
METHOD:
Method: Not noted. Type: Staticacute GLP: No Year completed: 1977 Species: Daphnia magna Supplier:Not noted. Analyticalmonitoring:Dissolvedoxygen Exposure period:48-hours Test organism age: Not noted. Statisticamlethod: EC50 calculatebdy graphingdataand by probit analysis. Test conditions:
Dilutionwater: Carbon-filterewdellwater,aerated. Dilutionwater chemistry:
Dissolved oxygen: 9.4 mg/L Lighting:Not noted. Stock and testsolution preparation:Volume/volume directadditionto testvessels. Exposure vessels: Not noted. Number of replicates:two Number of daphnids per replicate:10
Number ofconcentrationss:ixplusa blankcontrol Water chemistryduringthe study:
Dissolvedoxygen (final): 7.5mg/L (controelxposure) 7.0 mg/L (3,200mg/L exposure)
RESULTS
Nominal concentrations: Blank control,180, 320, 560, 1,000,1,800,and 3,200 mg/L
Element values: 48-hour EC50 = 2,800 (1,700 - 8,100) mg/L
Element values based on nominal concentrations
Remarks: Testing was conducted on the mixtureas described inthe Test Substance Remarks field.The value reportedappliesto thatmixtureand not the fluorochemicalproportionalone.
CONCLUSIONS
The FC-600 48-hour EC50 was determined to be 2,800 mg/L with a 95% confidence Intervalof 1,700 to 8,100 mg/L.
Submitter: 3M Company, Environmental Laboratory,P.O. Box 33331, St.Paul,Minnesota, 55133
DATA QUALITY
Reliability:Klimischranking = 3.This study lacksdescriptionof the methodology used and reportingof testcondictions.The sample purity was not properlycharacterizedand the study lacksanalyticaclonfirmation of the amount of fluorochemicalproportioninthe solution.
REFERENCES
This study was conducted by 3M Company, Environmental Laboratory,St. Paul, MN, 1977.
OTHER
Last changed: 6/28/00
740101
ENVIRONMENTAL ENGINEERING LABORATORY AQUATIC TOXICITY WORK SHEET
Type Test ft Hours --TOLERAWE
I>ApktojW Test Organism r-&%head uiiiie;i
s-rtoy
Material Tested Avg. Weight
Fr--(.00 Avg. Size
Date Started- 8/e/77'
Date Completed-EZ@02-2--)
Time Started
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