Document Emvo28MEDVzRGpqVJGxQN6xZb
AR 226.0693
ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95 or as a component of FC-201AF. (1-
Octanesulfonic acid) (CAS # 2795-39-3).
Remarks: _ The 3M production lot number was not noted. The test sample i1s8F.C5-92%01dAiFet.hylCeunreregnltycionlfoburtmyaltieotnheirn,di3c7a.t8es1%it wisataerm,ix1t4ur%e eotfh3yl%enPeFgOlSyc,ol, 8.25% Acrylic foamer, 9% sodium octyl sulfate, 0.3% sodium lauryl sulfate, 3% triethanolamine, 6% sulfonated alkyl ether salts, and 0.05% tolyltriazole. The following summary applies to a mixture with incompletely rcehfalreacctttehreizteoxdiccoitnyceonfttrhaetfilounosorofcihmepmuirciatliecso.mDpaotnaemntaoyfntohteatcecsutrsaatmepllye.
METHOD:
Method: OECD Guideline 203 TGyLpPe:: NAocute static-renewal Year completed: 1995
Species: Pimephales promelas
ASnuaplpyltiiecra:lAmqounaittiocriBnigo:sysTteemmpse,raItncu.r,eF,orptH,Colalnidns,diCsOso.lved oxygen. Exposure period: 96-hours SStpaetaisrtmiacanl Kmaertbheordmse:tLhCosd uvsailnugetsheweErPeAcaPlrcobuiltatAendalbyysitshePTrrogirmamme,dVersion
1.5.
TLeesntgtfhisahnadgew:eiJguhvte:niles (A~8v9e-r9a0gedalyesn)gth = 25 mm Average weight = 0.109 g (wet)
Loading: 0.607 g/L.
TPeresttrceoantdmietnito:nsN:one. DDiilluuttiioonn wwaatteerr:chCearmbiosnt-rfyi:lteNroetd gweilvlenwater (3M #2, St. Paul, MN)
Lighting: Not given. Stock and test solution preparation: The test material was added directly
Ctoontcheendtilruattioinownastderosoinnga rwaetieg:htD/aviollyusmoelubtaisoins.renewal during the study.
`Stabilityofthe test chemical solutions: Not noted.
NExupmobseurreofverespsleilcsa:tes2:L 2glass beakers containing 1.8 Ltest solution. Number of fish per replicate: 10
000184
Numbeorf concentrations: five plus a blank control Water chemistry during the study:
pH ran8g.e0(80-.946 h(coounrtsr)ol: exposure) Temper7a.t9u--re8.r3a(n3g2e0 (m0g-/9L6 hexopuorssu)r:e)1"7.6 -19.8 C Dissolved oxygen range (0-96 hours):
6.1-8.5 mg/L (control exposure)
2.18.5 mg/L (320 mg/L exposure)"
* 320 mg/L (intermediate concentration) exposure values used
because the highest two concentrations resulted in total mortality by 24
hours.
RESULTS Nominal concentrations: Blank control, 100, 180, 320, 560, and 1000 mg/L.
Element values: 96-hour LCso = 310 (270 - 370) mg/L.
Element values based on nominal concentrations
SRuebmsatraknsc:eTReesmtianrgkswafsielcdo. nTduhcetveadlouensarempioxrttuerde aapspdleystcorithbaetd miinxtthuereTeasntd not the fluorochermical proportion alone.
ThOeNCtest sSaImOplNeS86-hour LCs for fatheadminnowwas determined to be 310
mg/L with a 95% confidence interval of 270 to 370 mg/L.
Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133
DATA QUALITY
Reliability: Kiimisch ranking 2. Testing meets the criteria for quality testing. However, sample purity was not properly characterized and the study lacks analytical confirmation of the amountoffluorochemical proportion in the solution.
REFERENCES
This study was conducted by the 3M Company, Environmental St. Paul, MN, Lab Request number N2964, 1995.
Laboratory,
OTHER
Last changed: 6/2600
000185
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