Document x5Yyzkq487n5y3ord94OEvwpG
AR 886 - 0918
ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA)
TEST SUBSTANCE Identity: A mixture containing perfiuorooctanesulfonate, `which may also be
referred to as PFOS, FC-95, or as a componenotf FX-3104. (1Octanesulfonic acid) (CAS # 2795-393).
Remarks: The 3M production lot number was not noted. The test sample
is FX-3104, 6%. Current information indicates it is a mixture of 0.48% PFOS,
14.09% diethylene glycol butyl ether, 59% water, 17.6% ethylene glycol,
1.44% sodium octyl sulfate, 4% inhibitor, 2.0% polyoxyethylene
monooctylphenyl ether, 1.25% propane sultone foamer, 0.03% sodium lauryl
sulfate, and 0.1% benzotriazole.
~
The following summary applies to a mixture with incompletely characterized concentrations of impurities. Data may not accurately reflect the toxicityof the fluorochemical componentof the test sample.
METHOD:
Method: Not given.
Type: Static acute
GLP: No Year completed: 1985
Species: Daphnia magna
Supplier: In-house cultures.
Originally obtained from U.S. EPA-ERL, Duluth,
MN.
Analytical
monitoring:
Temperature, pH, and dissolved oxygen.
Exposure period: 48-hours
Test organism age: Statistical methods:
<24 hours old ECs values calculated
using
logistic
regression
methods (probit analysis).
Test conditions:
Dilution water: Carbon-filtered well water.
Dilution water chemistry: Not given.
Lighting: Not given.
Stock andtestsolution preparation:
prepared by dissolving 1000 mgoftest
A primary
substance
stock solution was
in 500 mL water. Exposure
concentrations were prepared by additionofstock solution to each vessel.
Exposure vessels: 250 mL glass beakers containing 200 mL exposure
sNoulumtbieonroatfaredpelpitchatoefs6:
cm
2
.
Numberof daphnids per replicate: 10
Number of concentrations: five plus a blank control
Water chemistry during the study:
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pH
range (0-48 8.18.2
hours): (control
exposure)
Temper7a.t7u-r8e.1ra(n1g0e00(0m-g4/8Lhoeuxrpso)s:ure2)2 C
Dissol8ve.d99ox.y3gmegn/rLa(ncgoentr(o0l-4e8xphoosuurrse)):
7.5-9.3 mg/L (1000 mg/L exposure)
RESULTS
--
Nominal concentrations: Blank control, 100, 180, 320, 560, and 1000 mg.
Element values: 48-hour ECzo = >1000 mg/L.
Element values based on nominal concentrations.
Remarks: Substance
RTeesmtairnkgswafiseldc.oTnhduecvtaelduoens
a mixture reported
aapspldyetsoctrhiabetdmiinxttuhreeTaensdt
not
the fluorochemical proportion alone.
CONCLUSIONS
The test substance 48-hour ECso was determined to be >1000 mg/L.
SPuaublm,itMtienrn:esot3aM,
Company, 55133
Environmental
Laboratory,
P.O.
Box
33331,
St.
DATA QUALITY
mReeltihaboidliftoyl:loKwieidm.isTchherasntkuidnygl=ac3k.s iSntfuodrymaltaicoknsodnespcurriipttyioofntahnedtersetcosrudbsstofance and analytical confirmation of the amount of fluorochemical proportion in solution.
REFERENCES ~~
TSth.isPasutlu,dyMNw,asLacbonRdeuqcuteesdtbnyutmhbee3rMC1C1o1m1p-a2n,y1,98E5n.vironmental Laboratory,
oTHER
Last changed: 6/26/00.
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AGE OF TEST ORGANISMS:<24 hrs. old instars Caries 6. oraanisns per TREATHLOENL
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