Document qkQgbJ7dJ9g5N3KM4EKQvb54j
TO
R. D. Hardesty
PlgLO POINT OB OEPT. & SIC3. NO.
Brecksvi11e R S 0 Center, D/8506
j = TWIS LETTrcEHB
iJuly 23, 1976
Analysis of Personal Monitor Samples of Air Pollutants
The carbon tube personal monitor samples which arrived on the indicated date have been analyzed. Corporate Environmental Services Lab has measured each amount of adsorbed air pollutant. These samples have been given the following log number or numbers: 158.
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8F5-4S'2-*-l
cc: P. M. RD E. B. L. B. J. A.
7 M UTHQ USA
Zakriski Files . Katzenmeyer, Crider Klupar
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22365001
BFG20338
I
ComaTitan with Stw Stripping
rhi* desorption data, obtained for aarqr different retire, \r., B.P.dood.-lcn Oecne, hsee boon conp^red qualitatively and iwnM'itit*./ .;
jtrlppln* data for tha ium resin slurries - data ofetsire i a.i.-i* and 50* Inert par fora tad-tray ooluuna. m# rlaeir ease of steea-strl pptn * particular rtalrt is predicted bjr the Desorption fast* In addition, the De-orr-iTM Test indicates tne alnleue residual vinyl chloride content practicably attainable, and indicates the noninsl re sldence tlae required for alx *inert coluan atrippi^ a rti^h vinyl chloride content feed to a specified rlnjrl ortlorlde level.
The qualitative couperisen of the steen atrlppii* and the Oeaorpti ^ rs-s*. results can be seen in Hilo I dan ttae several rvslaa vert ranksd based jt\ tin required to renove one-half of the vinyl ehlorlde pvaeant.
Sanple
k
Desorption Teat
JfO
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L
0.19 1
B
0.25
2
B .3* 3
D .55 *
P
; 0.72
5
C
h *70 - 1HggjWWPP* 103 4
*95
6
Itaes Strlpf (-in Cal.
/*> ML 0.9 1 1.0 2
1.1 3
1.7 4 2.9 6
1.8 5
TTplaa!%*4 mdbldi tibia z la baaad are illuatratad La figures l and
2 for ssapla "B*.
BFG20249
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22343004
n
m Mf HH ottaimila tuontltativa aonpdriior
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:~%P*rtnf tho lap aonaontmian |radlorM/roal4oM tin *ti from iii >
ooiuona with tMt ruined 67 tft* Daaorptlon Tail - mind *.a
0.6 trvd 1 ainut* M*orptlon Tit* davo. Ihoao data ara no*m in rt:-
for itran diffaront rtain* (ftripplftf data at 10)>19**C; Da.:orptlcr. re,
at jO*C and 10**C) *nd for tnrto Additional oaon r#ilu iS'.ripptrvd iv.a *.
I05-10^**C; Daaorptlon Ttt data it 10**C). Vhllt aoran-vlnun oaaorpv. * :*.
data in und In that* oouparlaona, tho aatual oaparlaonta rt parf*m3 -Un|
a 35 alnuta doaorption tiaa. Tho oonoontratlon of Ylnpl anlorli* in ..*
at tfta and of tbo Daaorptlon Tt (C/C0 at 3) ninotoa a Co) 1> llatad in
Tabla ZZ aa *035, 97a.*
Iha prooodaraa for obtaining Omn oonparlaana art Llloatratod by ridurti 1 and 3 (Daaorptlon To at data) and Pita** 2 (Itoan Itrlfplnc data) apain ror saaplt *1*.
Tba data fm fatla Z1 ara plottod la Pleura *, ahovlnf tho oorraapondonoo
btMn tha atrip tiaa Daaorptlon foot data and tha ataaa atnppmc data for tna
flra aaaplaa ranhad la fthla X (90*6 Daaavptlon faat
ali-lnaft ooluan parfor-
aanoa) and Par fatr additional raalaa - IMpla "*"# toon 10), 10217 pj and 10312 fTf>
Stoaa-atripplnf data for tha oaona vara ahtalaod froa >0-ln aoluan parforaanaa and
Daaorptlon Toot data ottalnad at 10**e ttaan atrlpplng data for aoaplo 0 waa
obtalaad at 10h*e with a ala-laah aalaan.
Unaar nfvaaaloa aaalpali of tha Daaorptlan/ataoaatrlppinp rtlationahip glvaa a 99*0 aarralatlon toafflalaat and a 9M aaafldanaa Halt with ataman orror of () f par oant.
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BFG20255
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jw of aw yeat yrcm the Desorption Test, the relative mm of vinyl chloride rer.-rii \r,t
m lnJlcaticr. of the ncn'.rsel roridenec tli*. In a itu stripping calum v. ?><> r-sWblirhed.
Fo- example, a Main for which the initial concentration drop oalouittas <o be: -Lot C/Co / t 1.5 at 10d*C or 0.90 at >0*C indicates 0 residence *ino function - (Log C * log Co) / t or -Log C/CpA of 0.31. Residence time f>r stripping from 1000 ppm to 1 ppm would b (0*3) / 0.32 or 9.3t5 9-10 ntnw.es. The desired residence tint in a iMaa stripping column, naturally will result in a balance botwpon the raaldudl vinyl chloride ooairdd ani the thermal stability ef the pertleular roain.
thla correlation of the Desorption feat and steaa*strlpplng la base. on a nuaber of different reaIna which show a fairly vide latitude in ease-of-stripping. The capability of thla correlation in predicting nominal residence time otvicuely la limited to realna performing within thla range. However, the Oeaorption Teat can readily identify e ratin that would bo very difficult to steam-itrip. The type of daw which would indicate thla ia damonatrated by the desorption curves Mown in figure 3. the shaded area bounded by Oeon 103 and Oeon 92 reprotones desorption performance for routinely atrippablo resins, oeaorption performance of resin type# which would be ??.y difficult to atrip are represented by tht dotted lines (H) and (F).
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BFG20256
22343011
nmn 5
BFG20257
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ISo of 0t*-flE
Tho aaaporlton rfur, la Titel* ill ivMirlMi tho i4mtU|yi r tfto >* - rptnr
Tt ir promoting tfto afflalancjr in itooa*>tripping rlnyl ahlorlao f rv* s ./vir./ishiorids.
nau hi
OtfMUrlitUi of Dstorptlon vs. color. stripping
Ha mu coImb
1. ais of goapl*
55 gallon drua
2. TIM Of Tt
1/2 to 1 My
3. KTOR analysis
gaaylts from troys ITCH by hood spoon
2-3 snaplos/run initial esnsontrotlon
4. Otto fioduotlon
MMl plat
5. Assails
Doss not radon# fM bo ioasl to soo brook la am rsfloollng glassy bonds eoatont
6. Saaplo for tostlag
Holds lbs. o\ f soaglo
7. OSMisl applicability got systoa for TOR
Dtsorptlon Tn
1-2 ga dry polynor
2-3 soaplti/isy
Rons rogulroi lono roqnlrsi MM roquirod SOM roquirod
Oslo froa start FrogrosnMd sole rmgroaail plot
Oaa ssa glossy bonds ns prodlotod
Dry systoa sppllenbls to nteost say polyaor/aonoaor/ solvoat systoa
Dm sdMgfeags of Msllsr soaplo sits for> His dssorptlon tost appllo* pnrtioalorly to ssnrnsss potsntisi 11ssnoots.
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(ffNt of MM ItApplaf * MM MMti f*wqr f-t Jiyift .......................
A 0--00 fWP M9 Oolfttoriw? iffHt Oft --tontlOl MMI--1 lUklUtr of tfto rtln ii o rosalt ftf nnpMC Ml --Inf Mm OMlUaqr nwiaiur i!M( Itobillty Tftit (CTM). MU toot, iM ostoflolvol* in ft-rlng Mmi--1 I'.nilltj and --lt-flow atobUltjr U dmriM In pofor bf Collina and trior.(1; it ooMliti of Uotbftimlly ostrodUif Mm ol|--r it mmimI alor-nto ind uniunt too--JO tort Mil noting MM tlM Mgoirod k OtMlA o--lllbri-- tln-iUy, u it oon#tout rlMooltjr m 11m of ohm Ml mm of oMnmm fiNNitp laot-fto. MUiMttli oolor tMngo vlto tl-- o% oonot--t Aooooltj in kunn inj roooM#*.
noto 1 koMtnki Mnt Mm mo-- --rigging of ne roalna I02ip f$# lOJtr fT<# ond Moil) 0, Oooo not iMmly offMt Mm Mmi--1 atooiusjr of tto rooln. in to-- oooos, Hon M-- --rigging --f --m aont--inonta aa troll n ringl aOloriM, Mm Mmi--1 atotlUtg M not--lljr bo on--oo.
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22343014
BFG20260
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X. IVtlMtlM tf RcXt BtdUff."
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BpG20262
Abstracts of Papers for the Fifteenth Annual Meeting of the Society ofToxicology, Atlanta, Georgia March 14-18, 1976
3. torc of [;4C]/'hr.i Chloride Pullowintr Inhalation Exposure m Rats. P. G. XVATAN-x/ir. Ci. H McGdwa O. \J xnfiin and I'. J. GfliKl.su, Toxicology Research Loboralory, The Dow <. ncniical Company. Miilland. Michigan. The objective of (he present study was 'o determine the rate of inhaled fIJC)sii:sl chloride
("C-VCl :tl JiCerent exposure concentration* in rats. Male rats were expo-red n> 10 or I(100 P;vr. p'C'JVC for 6 hr and the routes and rates of elimination. of l4C actis try were followed for 7' hr after termination of exposure. Following c'fov.tse to 10 pp.n Vc\ urinary |Jt' activity ami expired VC comprised 68 and 2%. respectively, of the iccovvied radioaetiv Its. Alter exposure to 1000 ppm VC, the p-oportion of the radioactivity in the mine decreased while that expired as VC increased, representing 56 and 12 respectively. The pattern of pulmonary elimination of VC per se was described by similar tnonocsponentijl processes following 10 or 1000 ppm with respective half-lives of 20.4 and 22.4 min. The elimination of ,4C in the urine was described by a bicxponentiul process; the half-lives for the initial phase of excretion were 4 6 and 4.1 hr following 10 and 1000 ppm. respectively. The percentage of the recovered `"C remaining in the carcass after 72 hr xvas 14 and 15";, at the respective low and high exposure levels. The l4C remaining in the tissues xvas compttsed primarily of nonvolatile metabolites ot VC' rather than V'C per se. The urinary ,4C was separated by high-pressure liquid chromato graphy into three major metabolites corresponding to .\-acc(yl-5'-r2-hxdroxyethxl)cystcine. thiodiglycolic acid, and a third unidentified metabolite. The proportions of the urinary metabolites xvere not markedly influenced by the exposure magnitude. The fate of inhaled [,4CJVC xvas shown to be dose-dependent and this is consistent with previous studies on the fate of VC following ingestion.
/ 144. Sotoury Irritation Causal by the Decomposition Products of Polyrinvl Chloride. Cr.m<; S. Bxiuioxv, Vvrs Alarm, and Maryanne F. Stock. Department of Occupational Health, Graduate School of Public Health, University of Pittsburgh. Pittsburgh, Pennsylvania. The evaluation of potentially te.xic gases ha; come to be recognized as one of the salient
features of lire toxicity. This study was undertaken to quantitate the decree of sensory irritation to the upper respiratory tract of mice to the decomposition products of three different formula tions fA. R. and C) of polyvinyl chloride fPVO. Polymer A contained a plasticizer, polymer B contained a plasticizer and lire retardant, and polymer C contained neither plastici/er nor tire retardant. G roups ofthree to four male Swiss-Wcbstcr mice xvere exposed to the decomposition product; of approximately 50-00 mg of each polymer. The thcrmogravimetric analysis of each polymer demonstrated that two distinct weight loss fractions occurred during the de composition process. By varying the dilution air through the exposure chamber a range of exposure concentrations was obtained for each weight loss fraction. Dose-rcsponsc curves were plotted by utilizing the percentage decrease in respiratory rale during each exposure as toe r. oi.inci- parameter, ire rest:!'.; shewed that it: terms of .sensory irritation PVC-A > i'VC-is > i'vv-C tor the first weight loss traction. Similar comparisons were made for the second weight less fractions. Based on tins work and previous stuvires of sensory irritation to other airborne chemicals, predictions of qualitative and quantitative human responses to sensory irritants such as the decomposition products of i'VC are pv-ssiblo. (Supported under Research Grant No. 5-9005 from the National bureau of Standards. )
BFG20087
22306019