Document 5bkvMExQd3V5KZnnVeXMrZv4V
AR 226 - 0797
ACUTE TOXICITY TO FISH (FATHEAD MINNOW)
EST SUBSTANCE
Identity:
Mixture containing Perfluorooctanesulfonate, which may also be
referred to as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).
Remarks: The 3M production lot number was cc 785-22. The test sample is FC-206A. Current information indicates it is a mixture of 0.92% PFOS, 18.75% diethylene glycol butyl ether, 75.44% water, 1.83% Hydroxy foamer, 1.75% sodium octyl sulfate, 1.2% poloxyethylene monooctylphenyl ether, 0.06% sodium lauryl sulfate, and 0.05% benzotriazole.
The following summary applies to a mixture with incompletely
characterized concentrations of impurities. Data may not accurately reflect the toxicity of the fluorochemical component of the test sample.
METHOD:
Method: Not given.
Type: Acute continuous flow
GLP: No
Year completed: 1979
Species: Pimephales promelas
Supplier: Commerical supplier in Brady, NE
Analytical monitoring: Temperature, pH, and DO.
Exposure period: 96-hours Statistical methods: LCs value calculated using probit computer Test fish age: Juveniles Length and weight: Average length = 41 mm
Average weight = 0.64 g (wet) Loading: 0.64 glL
Pretreatment: None
Test conditions:
Dilution water: Carbon-filtered well water
Dilution water chemistry:
Hardness:
Alkalinity:
236 mg/L as CaCO3
221 mg/L as CaCOs
Conductivity:
430 pmhos/cm
program.
Lighting: Not given.
Stock and test solution preparation: A primary stock solution was prepared at 210,000 mg/L. General dilution factor of 70, equivalent to 3,000
mg/L. The primary stock was proportionally diluted with dilution water for the
additional concentrations: dilution series 100%, 60%, 40%, 20%, 10%, and
0%.
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Flow-through rate: Approximately 4.5 volume additionsof test solution eCvoenrcyen2t4rhaotuirso.ns dosing rate: Continuous `ESxtpaboisliutryoefvtehsesetless:t cGhleamsisctaalnkssol(u3t6ixo2n1sx:24Noctm)nocteodn.taining 16 L of test sNoulumtbioenr. of replicates: 1 NNuummbbeerroofffciosnhcepnetrrraetpiloincsa:te:fiv1e6plus a blank control Water cphHemriasntgrey(d0u-9r6inhgoutrhse):study:
7.9- 8.0 (control exposure) Temper7a.t6u8re.0ra(n3g0e00(0m-g9/6Lhoeuxrpso)s:ure1)8-21 C Dissolved oxygen range (0-96 hours): _
7.0 - 9.3 mg/L (control exposure) 4.59.3 mg/L (3000 mg/L exposure)
RESULTS
--_--
Nominal concentrations: Blank control, 300, 600, 1200, 1800, and 3000
mg/L
Element values: 96-hour LCs = >3000 mg/L.
Element values based on nominal concentrations
Remarks: Testing was conducted on a mixture as described in the Test
Substance Remarks field. The values reported apply to that mixture and not the fluorochemical proportion alone.
CONCLUSIONS
The test sample 96-hour LCso for fathead minnow was determined to be >1320.050% mmogr/tLa,littyh.e highest concentration tested. This concentration caused a
SPuaublm,itMtienrn:esot3aM, C5o5m1p3a3ny, Environmental Laboratory, P.O. Box 33331, St.
DATA QUALITY
Reliability: Klimisch ranking 3. Testing lacks record of methodology used.
Tanhaelryteicisalacloancfkiromfacthiaornoacftetrhiezaatmioonuonfttohfeftleusotrsoachmepmliecaalnpdrotphoersttiuodnyinlatchkes solution.
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REFERENCES This study was conducted by the 3M Company, Environmental Laboratory, St. Paul, MN, Lab Request number 4970S, 1979.
OTHER
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Last changed: 6/26/00
00211
ty
ENVIRORMENTAL LABORATORY
LE 4970s
AQUATIC TOXICITY DATA SHEET
ve Tose_96-Mour CFlos satertat testes _TC-206 A SET
Test Organisiiniuead Wuyousource Brady, Neb. pete Boctd. .7:79 batch No.8
Avg. we. p42
grams Avg. Sized, Fd no. organisms per dose
1
Test Solution Voluse|6Liters/All-Glass Tek Tank Dimensions: 36x21 ca snd 2 cm deep
Time Started_\|:000m Date Started) [2-77 Date Completed 2-20-29 Dilution Water_Carbon-filtevreield water(Tew. \R C, 0.0.9.3 pou, pt 5.0)
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