Document oeJynY27mRKrKD6JQ0dQmbqMw
TOXICITY TO AQUATIC PLANTS
AR 226 -- 0727
| Identity: A mixture containing perfluorooctanesulfonate, which may also be OrecftearnreesdultofoansicPFacOiSd,) (FCC-A9S5#, 2or79a5s-3a9-c3o)m.ponent of FC-203. 1-
iRseFmCa-r2k0s3:. diethylene
gClyuTcrohrleenbt3utMiynlfpeortrohmdeaurtc,ito3ino7n.in8ldo5ti%cnauwtaemtsbeeirt,ris2wa0as%minxeotttuhryneloetoendef.gl1yT.c3ho4el%,
PteFsOtsSa,m3pl5e% 2.66 %
Sultone foamer, 3% sodium octyl sulfate, 0.1% sodium lauryl sulfate, and
0.05% tolyltriazole.
The following summary applies to a mixture with incompletely characterized concentrationsofimpurities. Data may not accurately
reflect toxicity of the fluorochemical component of the test sample.
M0 emo0 n.00000000000
Method: OECD Guideline 201
Type: Acute Static
YGeLaPr:stNuody performed: 1991 SSpoeucricees:: ISne-lheonusaestcrulutmurceas.priOcriogmiunatlulmy obtained from the Culture Collection of
Algae at the University of Texas at Austin. Element basis: Algal cell counts (cellsiml), growth rates. Exposure period: 96 hours
pStraotgirstaimcaolf MSettephhoadns,: 19T8h3e. ETCh5e0NvOalEuCeswwaesrecaclacluclualtaetdedusuisnigngDutnhneetcto'msptuetste,r
Analytical monitoring: pH and temperature.
Test Conditions:
Algal Nutrient Medium: Nutrient medium per U.S. EPA, 1978. This nutrient
medium provided all mineral nutrients essential for algal growth and also
mseerdvieudmawsatshe~d8i.l0u.ent for all algal operations. The pH of this syntheticalgal
Stock and test solution preparation: A 1000 mg/L primary stock solution
was prepared in nutrient medium. Aliquots were then added directly to the test vessels to create test solutions.
Exposure vessels: 250 ml Erlenmeyer containing 100 ml test solution and capped with inverted glass beakers.
Agitation: Shaken continuously at 100 rpm.
000639
Number of replicates: 3 INnuitmiablecrelolflcooandicnegn:tra1t.0ioxns1:0 fcievlelsp/lmuLs. a blank control WLiagthetrinCgh:em3i5sturEyi:n/sec/m? from continuous cool-white fluorescent lighting.
pH range (0-96 hours): 7.89.4 (control exposure) 7.8 -8.0 (1000 mg/L exposure)
Test temperature range (0-96 hours):
23.3 - 23.4 C (incubator)
Resuwys
000000000
OOO00
Nominal concentrations: Blank control, 62.5, 125, 250, 500, and 1000 mg/L
96-Hour Algal Growth Response Values
Nominal | Mean Cell-Count
Conc. | (cells/mL)
(mall) 395.000
645,000
347,000
[250
69,000
[500] 51,000
[1000] 12,000
Average | Percent Change in Specific Growth Rate from Growth Rate | Control (96 hrs)
00% | -- |
[o 1o16d|
0.037
0.020
0.017
0.002
Algal Growth Response E/Cs values: 9966--hhoouurr EN,OCsEpC==355400(3m2g3/L-- 389) mg/L
Element values are based on nominal concentrations.
Reversibility of Growth Inhibition: Not give.
}
Remarks: Testing was conducted on the mixture as described in the Test
Substance Remarks field. The values reported apply to that mixture and not
the fluorochemical proportion alone.
conclusions
0000
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mglL for growth rate.
Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133
000650
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tReesltiianbgi.litHyo:weKvieirm,isschamrpalnekipnugri=ty2.waThsisnosttupdroypmeerleytschtahreacctreitreirzieadfoarnqduatlhietystudy
lacks analytical solution.
confirmation
of
the
amount
of
fluorochemical
proportion
in
the
R0 EFERENCES 00
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Last changed: 6/27/00
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VI. RESULTS
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Table 2. Growth data from toxicity test
:
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ible 3. Ppescpcentt ochaengegfhron control and average specific growth rate
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Tablet. Natisn effective concentrations (BES0R) from toxicity test
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AppendixA. VATERQUALITY DATAYRoNTorIcTTy vEst
S 1 a
TE
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An
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Table 0.2. BR ensured duriog toxicity test
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