Document 06KG2OBad26jr96EezrK0VOqm
emer na
TTEECCHHNNIICCAALL RREEPPOORRTT SSUUMMMMAARRYY
70: TECHNICAL COMMUNICATIONS CENTER 20120 TO: TECHNICAL COMMUNICATIONS CENTER - 201-2CN
(mporans - reports rindanbot sds of per, sn tw cops0 TCC.) (Important - If report is printed on bo~ sides of paper, ~end two copies to TCC.)
[ 0at2~//2277//7788
mr Proiect R~ort Title To
6EE 6orPcC Fate of Fluorochenicals
Fate of FluorochemicaZs
Adsorption of FC 95 and FC 143 on soil
Adsorption o FC 95 and FC 143 on soil
vw Y
Author(I)
Stephen x. netsh SEW Stephen K,
NotaOOOk Reference
Welsh
~I~LAJ
240673, sa7708 #40673, #47704
on Bo E cnn B=ees E|ES SECURITY
~ O~n
(Com~ny Confi~ntiel)
~ C~o~d
(~ciel Authorization)
l 3M CHEMICAL REGISTRY
CT I KEYWORDS:
(~elect tern~ from 3M Thesaurus. Suggest other
iE To obtain an indication of FC 95 and ;FC ap~licabJe terms.)
CURRENT OBJECTIVE: To obtain an indication of FC 95 and ~=C
soil. soil.
5 6 PC - Div. EE 6 PC - Div.
D~o t. Number
Ga0222
Pr Oiect Number
__
sarostzess F9If9o70612633
I . th ort1 Number
Employee Nur~ber(s)
73583 73583
NO. Of Panel Inc(uding Coverl~eet
Te14
eEe om New Chemicals Reported
~ Y=
~ No
145143 mobility mobility inin sandy sandy loanloam
FFlluuoorroocchheemmiiccaall
soitSoil sorption Adsorption Vobitity Nobi i ity
`REPORT ABa STRACT. (R200E.250Tworth)ThisSsoraSinformation & Satrouted by the ehricl CommunicationsComer REPORT ABSTRACT: [~250 words) This ~stract information is distributed by the Technical Communi~tions ~nter to
al~t 3M'ers m ~)eny R&D. It is Comg~y confid~tial martial.
As
As
a
a
part
part
of
of
the
the
Fate
Fate
of
of
FFlluuoorroocchheemniiccaallss
PPrroojjeecctt,,
aann
iinnddiiccaattiioonn
of
of
mabiLity
mobility
of
of
FC
FC
95
95
and
and
FC
FC
143
143
in
in
ssaannddyy
llooaamn
ssooiill
aswas
ddeessiirreedd..
Adsorpion-desorption
Adsorption-desorption
eexxppeerriimseennttss
{(aafftteerr
DDaavviiddss~onn,,
11997766,,
aanndd
HHaammaakkeerr,,
1975) along with vater solubility data can provide such inforsation
1975) along with water solubility data can provide such information.
TThhee aaddssoorrppttiioonn ccooeeffff~iefnnttss ffoorr FFCC 9955 aanndd FFCC 114433 wweerree ddeetteerrnmiinneedd ttoo bbee
0.99 and 0.38, respectively. For FC 95 adsorption and desorption
0.99 and 0.38, respectively. For FC 95 adsorption and desorption
could be described by a single valued function hile for FC 143,
could be described by a single valued function ~ile for FC 143,
they could not. Based on these data, both compounds sould be
they could not. Based on these data, both compounds would be
Judged
judged
mobile
mobile
in
in
the
the
ssaannddyy
llooaanm
ssooiill
uusseedd
iinn
tthhiiss
ssttuuddyy.
m men gS n Initials:
pm-- 3M CONFIDENTIAL 1115588..00000011
EEx1xh1hi5ibb8iitt 1158
State of Minnesota v. 3M Co., Court File No. 27-CV-10-28862
3aMmAA1t0o0636112209
:
uss CONCLUSIONS sorption costsiens for FC 35 an KC 143 wre 0.99 and 0.38, Adsorption coefficient for FC 95 and FC 143 were 0.99 and 0.38, respctively. or KC 95, adsorpeon and desorption could be dscrivd respectively. For PC 95, adsorption and desorption could be described ba single value funtion wile fo FC 145, they could ot. Considering by a single valued function while for PC 143, they could not. Considering atsonpion costctenes, desorption charctsritics ad ater soubiicie, adsorption coefficients, desorption characteristics and water solubilities, eth compounds wuld budge see In he sandy Loan sl used In his cal. both compounds would be. judged mobile in the sandy loam soil used in this study.
romero INTRODUCTION
AAss aa ppaarrtt ooff tthhee FFaattee ooff FFlluuoorroocchheemmiiccaallss PPrroojjeecctt,, aann iinnddiiccaattiioonn oof
Robi of 7 55 1m Fe 143 in sandy town soft as dred. dsorpuion: mobility of FC 95 and FC 143 in sandy loam soil was desired. Adsorptionssoeson xpeciaents (ates evden, 197, ad ashe, 473) sion wish desorption experiments [after Davidson, 1976, and Hamaker, 1975) along with ate satutsey ata can provide this Indicacion of shiLLy. This approsch water solubility data can provide this indication of mobility. This approach 15 usd by he. 5. $9 in peseicide registration reirmens. is used by the U. S. EPA in pesticide registration requirements.
-- MATERIALS AND METHODS upicate 3 samples of air-dried ri sandy loom suid (73 an, Duplicate 5-g samples of air-dried Brill sandy loam soil (57% sand, 368 36, 7 clay, 2.5 onpaic master, 1.5 organic carbon, eh i 6.5 snd 56% silt, 7% clay, 2.5% organic matter, 1.5% organic carbon, w{th pH 6.5 and CLLC. of 15.3seq /1000) were shaken with 25 1 of seluon in 1. poy C.E.C. of 15.5 meq./10Og) were shaken with 25 ml of solution in 50 ml. polyropyions centrifuge bes fo 36 hues ona veie accion shaker a room te. propylene centrifuge tubes for 24 hours on a wrist action shaker at room temp.
([1166--1199%)C.). PPoollyypprrooppyylleennee ttuubbeess wweerree uusseedd bbeeccaauussee tthheeyy wweerree ffoouunndd iinn sseeppaarraattee
Caperinenc (o0 Tech Noksbook TOTS, C. 1. Sehnk) <o aber ess TC 35 experiments (3M Tech Notebook #470675, C. H. Schrandt) to absorb less FC 95 an 5 145 than ass x puesto bes. and FC 145 than glass or polyethylene tubes.
Setuions ere sadeb diluting 2 stack seltion of exch chest. Solutions were made by diluting a stock solution of each chemical. Sng, 2 mL, (LOS, S68, 52, 19, 108, 13 of 5100). onentetions CCoonncceennttrraattiioonnss ooff C14-Cl-albabeelleedd FFCC 9955 wweerree 228822 mmgg//l1..,, 115588 nmgg//1l..,, 9900 mmgg//1l..,,
51 mg/l., 28 mg/l., (1011%, 56%, 32%, 18%, 10%, 1% of stock). Concentrations
na sm. ooff C14-Cl-albabeelleedd FFCC 114435 wweerree 552233 mmgg//1l..,, 229953 mmgg//l1..,, 116677 nmgg//1l..,, 994 amgg//ll..,, 5522 mmgg//1l..,,
and 5.2 mg/l.
11115588..00000022
ation 3MA10036130
.
After shaking the initial solutions as well as the three desorption extractions with deionized water, the samples ~'ere centrifuged
00 mp for 10 mn, 2 ee atts of ash prt sotutio at SO00 rpm or lO ran. and three aliquots of each supernatant solution eee cen or scntision coming, were taken for scintillation counting.
ir Te wg to 504, oF sets vs sheet After the ad.~orption step 22.5 ~1 of solution were recovered. ertore 34 ve astm se 2.5 51 of igi rin wih he sot Therefore~ it was assumed that 2.5 ml of liquid remained with the soil in
each step and this amount was accounted for in the desorption calculations
(on emits 2 Bsr sro. (see Results and Disc',ussion section~. 2 oe Fe ape 4 RAE 0 V8 SE Si In the FC 95 experiment, the supernatant liquid was simply drained
off at each step and the next 25 ml of liquid were ~t into the tubes. In the FC 145 experiment, the supernatant liquid remaining after the draining step was ab_~orbed with a cotton swab before putting the next 25 ml of liquid into the tubes.
he seein fo eh 7 53 an 5 14 sperms ser seco The procedures for the ~C 95 and ~C 145 experiments were recorded nS ecnint etl 005, 5. 8 ad 5. 1, rspcives in 3~ Technical ~otebook #40673, p. 49 and p. S1, respectively.
ren th vo comin fas, Sismnpcions pn ints, G70) sd From the raw countin~ data, disintegrations per minute (DPH) and
FC 95 and FC 143 concentrations were calculated for all of the supernatant solutions.
MSS pia of the 31 TE spur soc, Statistical .'malysis and plotting of the data was done with the
HINITAB package of the 3H TRAC computer servfceo
-- RESULTS AND DISCUSSION osFC 95
rsion de fn 55 am reentd TALE nd PLE1 Adsorption data for FC 95 are presented in TABLE I and FIGURE 1. omar oe reese sein 8 oe bomtion Soother (1088 1 Comparing the regression equation of the adsorption isotherm (FI6URE l)
xX//mm == --00.,2299 ++ 00..9999CC w~iitthh tthhee FFrreeuunnddlliicchh eeqquuaattiioonn xx//mm ~= xKCcI/,N iitt ccoouulldd bbee seen that the adsorption coefficient, K, equaled 0.99 and the exponent, N~ equa~ed one. The linear shape of the adsorption isotherms (N=l) indicated
11115588..00000033
3MA10036131
`
that FC 95 adsorption on soll would be independent of concentration. The
that FC 95 adsorption on soil would be independent of concentration. 1"he
Lox adsorption coefficient (K20.99) indicated that FC 95 vould be sobile, lSo.w6.,adistorwpotiuolnd mcooveeffriceaiednilty with the (K=0.99) ground water indicated thatthFCrou9g5h this would bseanlmyobliolaen,
i.e., it would move readily with the ground water through this sandy loam
sot.
soil.
ThE 1
TABLE I
AA Initial 7 35 InCCiotonincac.l.,, FCmmgg//91l5
212585228...220 I0S955801l10...o0000 2828.0
2.8
FC 95 ADSORPTION DATA
FC 95 ADSORPTION DATA
sB Equi, cone. EqCC,u,ilmm.gg//llC..onc.,
2i 23533.99 12347274266h00290 2222001
mces % Removed
AA,BBBY Soil
(A200) ( --~-, x lO0) fry17 1 18015 1 i14 6 17s178 at21 1 lo27 0
D 0
OIIhnn TTIIoo0nntt.iiaat0tllii0aa5llFFCCliSSto5o9el,5lr''snn)
(A x 0.025 liters)
72.753....02099555550000000000 002011....20702270705705005(00000)
0.0700
EE
SSooTTl(oo'Blttnxnaalla0at.PF0CCEE2qquu99ii55Mlli..tiie.,nnrsm)ngg (B x 0.025 liters) s.55310..13e83957452572550~5000000 1o0110.l....0s09055s525502020205s005000000 0.05000
F P
onFFCCSo99i55l,aAddssxoofrnr,bbeeddsp/s (0-6) x10 p/EmE on Soil, x~m, ~g/g
(,(OD--BE)) xx 1100~ uI{up/s mg)
21214o19009s..0s780S g Soil " 54622559393...'s735s
3.8
Desorption data for FC 95 are shown in TABLE 1 and FIGURE 2. For comparison,
Desorption data for FC 95 are shown in TABLE II and FIGURE 2. For comparison,
desorption isotherns for the pesticide fluometuron are given in FIGURE 3.
desorption isotherms for the pesticide fluometuron are given in FIGURE 3.
For clarity FC 95 desorption isotherms are not dram in FIGURE 2.
For clarity FC 95 desorption isotherms are not drawn in FIGURE 2.
Hoever, all of the data points lie very close to the adsorption isotherns
However, all o the data points lie very close to the adsorption isotherms
indicating that adsorption and desorption could be described by 8 single-valued
indicating that adsorption and desorption could be described by a single-valued
function with desorption coefficients, K'. equaling the adsorpion coefficient,
function with desorption coefficients, K', equaling the adsorption coefficient,
x
K.
1I 115588..00000044
amatoosstaz
3MAi0036132
s
20 " 24O
A
i wt 180
4&
112200
:o
i3:2
660O
s
o
0
/
5
.,,,"AB A
5BAA Regression Eqn: Y= 20.29 + 0.99 X -0.29 + 0.99 X
RoSauared + 0.985 R-Squared = 0.985 Ahem Data pines AB == APrcetduiaclteDdatYa VPaoliunetss
B ffi Predictvd Y Values
:
10 10 200 0 60
120
180
240
300
Equi, Conc. , sg/1 Equil. Cone., C, mg/1
Frome 1
FIGURE _i
Fc 95 Adsorption Lsothers
FC 95 Adsorption Isotherm
TThhiiss,, aalloonngg wwiitthh tthhee oobbsseerrvvaattiioonn tthhaatt aapppprrooxxiimmaatteellyy aallll ooff tthhee aaddssoorrbbeedd FC 95 as subsequently desorbed (TABLE 11, Colum H) indicated thas bFCind95ingwasfosrucebssewqeureentwlyeakdessondrbewdoul(TdABbLeEanIoI,theCroluimnndiHca) tiionndicoaftehdighthaactbility boifnd7icng95.forces were weak ~md would be mother indication of high mobility of FC 95M.aterial balance data for FC 95 are presented in TABLE 111 and these data inMdaitceartiealthbatalaanlcleofdattahefocrhemFCica9l5 vaarse parcecsoeunntteedd ifnorTAtBhLrEougIhIIoutandthethese
data indicate that all of the chemical was accounted for throughout the
experiment.
experiment.
11115588..00000055
aMat0013 3MA10036133
.
A x EEqSSquoluiloiluwt..tsitooCCnnoo,,nncc..C, iinn
221533m543~...9/92l000.000
134.200
36.000 76.900 212210000 42.000 2-000 22.100
2.000
mee
TABLE
FC 95 DESORPTION
FC 95 DESORPTION
s FFiirrEEqsequtusiillDaD..eessBloCoCroornnppectt..iioonniinn
m~ll.
555202...775000000000
30.2;000
183000 18.2;000 2.5c000000 9.6000 3000 $.3000
0.6000
11
II
1SOTIERN DATA"
ISOTtiE~ DATA*
c SSeeccEEooqqunnuiddiwl..aDDeCetssCCeoooonnrrccpp..ttiiooiinnnn
mg/l.
114p4..9900y0000 9.0000 300 5.3000
1.372030000 2.9000 16..72000000
0.2000
TThhiiBErraqdduuill.DsD.eessDtooCCorornnppceet..iioonniinn
255...2m52000$000/0001000.
2.80000
80000 1.80000 10.6000000000 1.00000 3-000 0.60000
0.I0000
e
.
P-
"H
AAmmoouunntat nAaSddsasooirr,bbeedd
AAMmmeooeuunrntt:FFooinnresSSooiill
AMAmmeooeuurnnttGSoeocnno'n~Sdooiill
AAsmaoMuuennettroonTnhiSSsoodiil
TCoTomaoxnn/nmSF,uvoa~ilTllsg,AGE 1
Desorption, b/s After First
Desorption, v~/g
SeAsfotreprtiSoenc,ondb/g
Desorption, vg/g
desoArfptteironT,hirvd3/s
Desorption,
216105..800000 (Column F, TABLE 240.800
66177s..:664005000000
111242...050000000000
30-59...181505000000
119.000
65.700 6S.700 255.5000 45.3OO
111313933.1....343~321000005000000000000
--212114266.....709077080500000000000000
-2-222-333225..-..59300805500000000000000
S00 29.500
1ii..7~0.00000
04..57000000
a2..245%0000
3.800 *"iCCootllhuummnncssorrFF,,ectGG,,ionaann1ddf.7o0HHr00wwteherereescmcoaaullncctuulloaattfeeddFCiinn35tthhieen 0st.s9aha0mem0ee02wv.a5ayyalaassoCfCoosllouulmmunntiFFo,,nTTAArBBe0LLm.4EEa5i0n1I0ing
wEirtoh ctoherreprcetviioonus.forsttehpeinamoeuancth aofseFC (9S5ec iMnattehreia2l.s5 malndoMfetshooldustioSenctrieomna.i)ning
from the previous step in each case (See Materials and M~thods Section.)
:
iS aasomption tsothern
g
fo.
: SE
-
ro
p.
Frome 2 FIGURE 2 FC 55 DESORPTION DATA POINTS FC 95 DESORPTION DATA POINTS
Ro RoR AND ADSORPTIOONN 1ISSOOTmHEERRYM
a ~00 Fra 3 FIGURE 3 ASDISSOSRUPETTIUGRNONAONND CDoEpSsORPSTAINDO,N ISSOOLTIDI.ERASDFOBRROKEN ADSORPTION AND DESORPTION ISOTHERMS FOR
FLLIILNNUEEOSSMEATARUREERONBBEEOSSNTT CFFIOITBTBFFOSOARRNDAA.DDSSOORRSPPOTTLIIIOODNN AAANDNNDD BROKEN
BERTON RESPECTIVELY. (Fron Davidson, DESORPTION, RESPECTIVELY. (From Davidson, epee et al, 1975)
11115588..00000066
MA10036124
3MA10036134
'
Total AAInitial (FPCCColuT99m55ontaiinDnl, SSITonolAiluButtiLtaiiEoolT"nn},, mmgg..
(Column D, TABLE I)
377...900555000000000 2132...22927555500000000000 0001....77200077005000000
0.0700,
AAFmsiooruusntnttDReRseeDommroopvvteeiddonbb,yy ng.
First Desorption,
00..489674755000 0.864500
mg.
0000..314315911971007000500000
0000...000115951009555000000000
0.011500
Tota3G Amount
TDDDeeeossstoooarrrlpbbeeeAiddmoonbbusyyn,tTTmhhfrreeee
oes) Desorptions,
,(D~E*F) ,
mg
011.722214888033
0000....4427443277543300
0o00...11i2333656s303
0.0178
TABLE 111
TABLE III
FC 95 Material Balance
FC 95 Material Balance*
FC 95 inB5Solution aCaFtCtolEE 9m5aqnuuiinlEi,l..,S, TommlHgug..tEio)n
(Column E, TABLE I)
535.1.883448775550000 3111...0399559905220055000 0.o010..s50555s020a050s00
0.05000
FC 95 <oCn soil
FC 95 on soil
(atAEBquil., mp. at Equil., mg.
(A - B)
o11'..2s20o020s505000 0000...3532229277555500000 0000....1201422475075005000
0.02000
Amount Reemoved by
SecAomnoduntDesRoermpotvieodn,byng.
Second Desorption,
001.27718705000 0.278000
mg..
0000.1..110170501050707050500000
0000...000033503354557000500000
0.004000
Amount RemaH"ining on tSASoiomioiolnlusn,AAtfftmRtpeee.rrma33i(nD DiCneegssGooro)rpnp--
tions, mg. (C - G)
Asoun-torRemoved by
TAhmoiurndtDeRseomropvteidonb,y mg.
Third Desorption,
00..100854750500 0.105750
mg.
0000....000035326460252250550000
0000....000012102022222255550000
0.002250
Amount 1IDesorbed as APP(meeGorrCcucenentnxtt D1ooe0sff0)o.rAAbmmeooduunnttas AAddssoorrbbeedd
(G/C x 100).
-"000..144255977055000 "--"0000...10111112990977005500 -0000...011001112220250550000
0.002250
111002331..688600155 111132306168...465588664155 1805942.2...734357470345
88.750
O"*fCCoollFuuCmm-nn9ss5 DDi,, ooff FsCo-l9u5tioinn
E2i2E,,n77..55aeaanncdmndhli FFr((wew22es5e5rrpeeemm1lctooiabbavdttdeadadieiendndseetddppellpuubbsasyyndf22F.ii.5rr5tsshttnemlln ccrsaraeluelmcbmcautauilrilnaaanitctinitingninggnggffrrttoohhtnmeeheppaamrrmmaoeoovuvuuniinnttaotuuss((nm(ggnss))gtt)eepp))
inof
in
the 2.5 m1 of solution remaining solution in each respective step
the 2.5 ml of solution remaining
fron the and then
from the
previous siep. subtracting the
previous step.
amount
11115588..00000077
I3MMAAI100003366113355
,
Data for FC 145 are presented in 'FABLE IV and TABLE V and in FIGURE 4.
The adsorption isotherm indicated FC 145 mobility similar to that of FC 95
with K=0.38 and N=I. Regression analyses were not performed on the desorp-
ion aothra, Hove, he graphed dca (FIGAE 4 indicated shat aisorpion tion isotherms, ho~ever, the graphed data (FIGURE 4) indicated that adsorption a dsortion could ro be deserted by singl-saued fncion. Tht and desorption could not be described by a single-valued function. That
avrpeon. Suiecine erauaion vend Indice has She desrpeon oeEiclnes iiss,, tthhee KK'' aanndd NN'' vvaalluueess ffoorr ddeessoorrppttiioonn wwoouulldd nnoott bbee tthhee ssaammee aass KK aanndd NN ffoorr
adsorption. Subjective evaluation would indicate that the desorption coefficients
Kx',,
wwoouulldd
bbee mmuucchh
ssmmaalllleerr
tthhaann
tthhee
aaddssoorrppttiioonn
ccooeeffffiicciieenntt,,
KK,,
aatt
solution
solution
Ssoters vas mh raver than he sages of the dserption sncherss in concentrations greater than about 25 mg/l, since the slope of the adsorption
isotherm was much greater than the slopes of the desorption isotherms in
this range. At solution concentrations less than 25 mg/l., the desorption
Concent ould appr 10 be mh reser then the adserpion conics coefficients would appear to be much greater than the adsorption coefficient. trom his 6 ould appear that tv or he diffrent binding sania From this it would appear that two or three different binding mechanisms
were involved with stronger binding occuring at the higher concentrations and
the converse at lo~,er concentrations. ~ile this may indicate a ~endency
for FC 145 to be i~mobile at high concentrations, it would be quite mobile
in any situations involving low concentrations.
Material balance data for FC 143 are presented in TABLE Vl. Nhile
the two concentrations resulting in 212~and 201~ desorption (last column
in TABLE VI) were erratic, in general, the data indicated that a11 of the
FC 143 was accounted for throughout the experiment.
11115588..00000088
-- 3MA10036136
5
TmABeLE 1IvV FFCC 114433 AAddssoorrppetsioonn DDaattaa
A A ICInnofinttcii.aallmgCF/C11.41433
Conc., m~/l.
_
521259262922722....66255 16957142..312 5255..223
5B EBc,qquuiinllg../1.CCoonncc.., . C, m~/l.
-_
4212478768505957....13818 1i569202l...s223 4955..191
c
By2% RRseoeimmloovveedd
(AB, By Soil A- Bx
I0000)
-- A A
~Tt~an4a7l..exs60 p42zt..ot10 1s4.5
1.9
D
TTionotcaTalateFFClCal114433Sol'n,
i2(mnAgIn0i.t0i2a5l
Sol'n,
Liters)
(A x 0.025 liters)
11337...300166522055 4271..331338102500500 2121..313303507270555
0.1300
e TTSooettlaa'lnl EFaFcCC 1B144a33uilinn, (So8=l%'n0a.t02E5qu1icle.r,s)
(B x 0.025 liters)
11225...119447557030 44620...0093077077s5550 0112..112322407775ss50
0.1275
, FoFCnC S11o64i33Fl,AAddssxofomrr.bbeeuddg/g (.(oDn--6ES))oiXlX',1I00xH~m,ueg/mgh.
1187833...555 u369471s..5s5 11o2902l....s0550
11115588..00000099
aMAT0036137
3MA10036137
l1O0
TTAaBmLeE Vv FC 143 Desorpson Tsochers Dacar
FC 143 Desorption Isotherm Data*
A a
EESqqouuliiullt..ionCC,oonneeC..,
fn
in
asi Solution, C,
m~/l
iEEnqquufiiillr..atCCoDonneecs..orpitnionfiSrosltutDieosno,rp-mg/l.
tion Solution, mR/l.
{(8C5o.lC8u0m0~o3~,TlTaabbluleeImIVV)) 2742187695091...38100000000 415659022....523200000000
5100 49.900 5.100
244877...866000000000 12117870....2827000000000000 10660...1170100000000000
0.6000
c
EEiqnquuaiSlle..conCCodonnecD..esorp itnionSecSoolnudciDoens,orpm-a/l.
tfon Solution, m~/l.
456..888000000000000 23.43.0..4840000000000000000 0.0O2.8.. 1080000000000000000 *
0.i0000 "
EEiqqnuuiiTllh..irdCCoonnDcce..sorption ins_soolTluhutitiiroodnn,~DesmmEoi/rlp..tion
233...955000000000000 2022....05090000000000000000 00OO....02521000000000000000
0.01000
EE
AAoomnnmloosuuSSnnooititll,,AAddssxxo/ommrr,,bbeedd URC!o.Blum 7, TABLE
,{,Column F~ TABLE
11688733...555000000 34631749..555500000000 112902....500500000000
0.500
r
AAAAmffmaottolueeuenrnrttFFiioonnrrssttSSooiDDileleHsseoorrpp--
13)~g/~
tion
IV)
11566044...866500000 32520002...50805550000 -03-.33...242450500000
-0.250
c
G
AAAAmfmaEootatuueennrrtt SSoeoenncctooinnSSoddooniiDDlleessoorrpp--
~I~
tion
H
AAAAmffmeottoleueuennrrttTThhootiinnirroddSSnooDDiieellssoorrpp--
~/~ ~ion
11535181...060500000 -83.989...%56905550000 2-~.802...095050050000
-0.500
11323555...112550000 120500....616650550000 - --1001T...s563055o500
-0.505
w"*iCCtoohlluummcnnossrrFa,,teiGG,,onaafndodrHBtwvheeerreeamoccuaanlltccuulolfaatteeFddC i1in4n3tthhfene ssthaaemmee2wv.aa5yyasassofCCooSlleuulmmunntiFF,,enTTArABeLLmEEainIIViVng wEfixrtoohmn cttohherereppcrrteeivviiooonuussforsstteetppheifannmoeeuaanccthh cocfaasseeFC ((1SS4ee3ee MMiaantteetrrhiieaall2ss.5aamnndld MMoeeftthhsoooddlssutiSSoeenccttiirooennm))a.ining
11115588..00001100
3aMMAAT100003386113388
n11 ww
wf pt _-- {
Ls
*
2
100
2
=eA
33:
op oc= TT A
1 of x
i
2k
YR-rSQoUtAReEsD e= 00..93x6
}.
0I
I
I
a
o Too 20 oo woo S00 0
I00
200
300
400
500
Eauil. Cone, C, mg/d Equil. Conc., C, mg/l
Frou + FIGURE 4
FC 163 ADSORPTION AND DESORPTION 150mERIS PC 143 ADSORPTION AND DESORPTION ISOTHERMS
So1id Lane 13 best Fie adsorpion isotherm, Dotted Lines are estimated Solid line is best fit adsorption isotherm. Dotted lines are esti.mated brio ibabag pty kee TgMg a desorption isotherms. A's are adsorption isotherm data points. B, C, D, E, ee nso and F are desorption data points for the respective concentrations.
Genesai. comets GENERAL CON~[ENTS The FC 95 and FC 143 adsorption coetFicients from these experiments The FC 95 and FC 145 adsorption coefficients from these experiments
201 00 comvestad tu he sosiogue ements Saved on sol. argent seehen ay be converted to the ~lalogous constants based on soil organic carbon
content. K, with the equation K,_ = 100 K/(% organic carbon) giving
conten; Koc, with the equation Koc = 100 K/(% organic carbon) giving
46, of 45 for FC 95 and 17 for FC 145 (2.2) organic cambon for this a Koc of 45 for FC 95 and 17 for FC 143 (2.2% organic carbon for this 1011). Comparing these values to these in TABLE VII, it can be seen soil). Comparing these V~'Llues tO those in TABLE Vll, it can be seen that FC 95 and BC 143 are at the Jou end of the spectrin, again Indicating that FC 95 and FC 143 are at the low end of the spectrum, again indicating Nigh mobility of these compounds. high mobility of these compounds.
11115588..00001111
SuAtonssiss
3MA10036139
n12
A
InTTiootttiaaallllyFFCC i1n14433Solution
(Icnomuilsgtl..ianallD,y
in Solution
Table Tv
(Column D, Table IV)
11735...030616252505 44721..3131581820505000 1210.1..3351005377205550
0.1300
AAFmmiooruusntntt. dReRseeonmroopvvteeiddonbb,yy mg.
First Desorption, mg.
000...00098043552050 0000...00001876232322275555 0.0000..0000146333370705500
0.00375
c sTTooorttbaaelld AAbsmyoouuTnnhttieeDDee-DDseDeossrEoobrreEppdteiibooynnssT,,hrmemgeg
(DE+F)
000...222401112880 0000....1112066109928530 0000...0010050553035085
0.0050
TTAHBLLEE
VI
VI
FC 143 MATERIAL BALANCE
FC 143 MATERIAL BALANCE*
B 5 FFCCat 11E44q53uiiilnn.,SSoomllpuuttiioonn ((CcaotolurmEmnquiEEl,,.,TTAABBmgLL.EE IIV))
611.229..71174055500 462l...o093070o775s550 1102...1223244077755s50
0.1275
E
AASmseoocuuonnnttd RDReeessmooorvvpeetddiobbnyy, mg.
Second Desorption, mg.
000...000666881000000 0000....00002565810020555000 0.0000...0000200686172725555
0.00125
H SAAoinmloouunnAttfteRRreemmaa3iinDneiisnnoggrpoo-nn SttoiiiooIlnnss,,A) fmmtpge..r 3 Desorp-
(c-~)
000..166277566577055000 0000....010052003533252250550000 --0000....000050003266527725555000
-0.002525
c
c
aFFtCC 1E1q44u53iloo.nn, SSoomgii.ll
(AB) at Equil.,
(A - B)
mg.
000...039131777555 00001...13107374272S755 00OO...0000066427005500
O. 0025
Cor
AATmmhooiuurnndttDReReseommroopvvteeiddonbb,yy mg.
Third Desorption, rag.
000...000776996227555000 0000....000040646866577505500000 0000....000000008330755050020005
0.000025
1I .
ApAsemoroucunentntt DDeeossfoorrAbbmeeodduntaassAd-
sorbed percent
sorbed
(G/of
(G/C
x 100) A~ount x 100)
Ad-
-
a2266s..33s4499
215692828....811110115866
2218052813....170705055000
20].000
*"FCCCooll2uu4mm3nnssinD0,,27.E,,5 amalnndd (FF25wveemlrreeaoodbdbtetdaaiinnpeelddusbbyy2.5ffiirrAlssttrcceaamllacciuunlliaanttgiinnfggromtthheepraeammvooiuuonnutts s((tnmegg)p)) ooff ooFiCffn st2s4oho3leluutt2iii.no5onn2m7l.ii5nnomefelaaccshho(l25urrteemissopplneeccatdtridieevvmdeeaipnsslittuneespgp aaf2nnr.dd5ommttlhthheeennrepsmsrauueibbvnttiirronaaugccsttiifnnrsggtoemptt.hpheerevaamimooouuunsntt. st((enmpgg)))
in the 2.5 ml of solution remaining from the previous step.
11115588..00001122
W3MA1A010003386114400
5 TABLE VIL 13
TABLE VII
CCoTomomprpara4riisSsooennleocoftfedAAddsGsorororpuptptiiooonfn CCPoeoeseftffificicicidieeennsttss
for a Selected Group of Pesticides
((lHlaammaakkeerr aannddTThhoommppssoonn~;19197722]}
Chemica
X.
Chemical
K
(Robile)
(mobile)
CCpG(FhhCCilyooIrr1aa4smn3bbees -nn - - een151222..88
F2(Gr~,oe4C-po.hsD9a5w n - - enn a-4s31nt527))
SVM BiPBorrmmroooosunpmmzurharaiaacomncninilel
13875S71381
DPiSPrcrioomhppaiaazszzibiinenneneei1 RDeicrhslzoibneenil
1111f16537r5425
ChPAClrthosrlzraoezrocioponprneroeopphhaanm Antsy Prometone
212B470A525 3s00 m.
DADPiirmuuorerrtoaoryntn~enyne CPrhoimolreotxruyrnoen
4as38s8sSo0 PR51T5
p.
(immobile)
Chloroxuron
POaOrTaquat Paraquat
22042,430,,.090008000600
or
(immobile) DDT
243,000
The
The
seal small
amounts
amounts
aaddssoorrbbeedd
aanndd
ceaassee
ooff
ddeessoorrppttiioonn
iiss
ccoonnssiisstteenntt
wwiitthh
tthhee
relatively
relatively
high
high
w waatteerr
sSoolluubbiilliittyy
ooff
FFCC
9955
((530000
mmgg//l1))
aanndd
Ff~o
1I~433
((>52200
gg//1l..))
30d
and
With
with
tthhee
cchheemmiiccaall
nnaattuurree
ooff
tthhee
mmoolleeccuulleess
- -
oorrggaanniicc
ssaallttss
wwhhiicchh
ionize in aqueous solution
ionize in aqueous solution:
F350 CBFI~SO3-K fFCc 9o5s
CF 500,"
C7F15C02 NH4
fc 143
FC 143
11115588..00001133
MAT00%6141
3MA10036141
114
TTeerrmmss. DDPPMM -- DDiissiinntteeggrraattiioonnss ppeerr mmiinnuuttee - Concentration of chemical in solution at equilibriun
C - Concentration of chemical in solution at equilibrium
xx//mm -- CCoonncceennttrraattiioonn ooff cchheemmiiccaall aaddssoorrbbeedd oonn ssooiill aatt eeqquuiilliibbrriiuunm RR2Z -- CCooeeffffiicciieenntt ooff ddeetteerrmmiinnaattiioonn XK -- AAddssoorrppttiioonn ccooeeffffiicciieenntt XK'' -- DDeessoorrppttiioonn ccooeeffffiicciieenntt NN -- EExxppoonneennttiiaall tteer~m iinn FFrreeuunnddlliicchh EEqquuaattiioonn .~ NN'' -- EExxppoonneennttiiaall tteerrmm ffoorr ddeessoorrppttiioonn eeqquuaattiioonn KKoocc -- AAddssoorrppttiioonn ccooeeffffiicciieenntt bbaasseedd oonn ssooiill oorrggaanniicc ccaarrbboonn ccoonntteenntt
RReeffeerreenncceess DDaavviiddPsseoosnnt,,icJiJ..deMM..M,,oveeetmt.,e,ntaall..T,,hro11u99g7755h,, SUUEssTee SooffTSSooSiill PEPaaPrraammeeEttReeGrrssOTffoorrTDDeessT ccrriibbiinngg.
Pesticide Movement Through Soils, U. S. EPA, EPA-660/2-75-009.
DDaavviiddissnoonnS,,oiJJl..s,"MM..,,pre11s99e7766n,,ted""VVeeatrrttiiSccyaamllpoMMsooivvueemmmeeonnnttNaoannmddbioDDliiossgttirrciiabbluuttiiToornannsoopfforOOtrrggaaannnidiccss OG FTTirenaannSSa stsofatinolodsi rr,ama"raadttt siip,oronensheoonfftFe ePodoLlIalrzuutoaSRs nyEtmSWspoDbsoo.nni,uTu .moLManaonyndrNSa1h0n1dn-gb13iW,oa, ltASoe1TrgE9R,i7,c6.aSaltt TNrNaetatinIosonpnaoalTrt BBauonrrdedaau
of Standards, Gaithersburg, MD., May 11-15, 1976.
HHaanmaakkieenrr,,ihJeJ.. oWW,,iaannEdndviJJ.z.omMNs..enTTth.hoommppssC.oonn,,A. 11991.7722..Gor""iAAnddgssooarrnppdttiiJoo.Hn'iNi.nn MOOarrnggsaaRnneiicrc CC(hheeemmfiitccaallss FaMirancrecte]hleDeDSeokkikkleerrE,,nvi~r[Innoccn..m,,enNt.N.. YY. C. A. I. Goring and J. W. Hamaker- (eds.).
HHaanmaakkCeehrre,,micJJ.a.lsWW,..,, Hu11n99a775n5,, He""aIIlnntttheerrpapnrrdeettatathtieioonnEnvooiffroSSnoosiiellntLL,eeaacAchhiCinnogglleEEcxxtppieeorrinimmoeenfnttssD,,o""w SiicnnientifCihcemicPaaplesr,s, HVuolm.an HI,ealthDow anChdemtihceal EUnSvAi,ronMimdelanndt,, AMiCcolhl.ecti4o8n630of Dow Scienti-
fic Papers, Vol.. l, Dow Chemical USA, Midland, Mich. 48640
11115588..00001144
I3MMAA1100003366114422