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dersrood by comye -icon with the annual dose which everyone
<br />
<br /> ! eceives frnm nar aryl sources. Exr_ludin radon, F~n e~cf-P`r3~1
<br /> q agrla~uraY. dose get;! - y
<br /> Y ~'-Ge t~ cells h% f.~'r~.~,a
<br /> ' --~~~~~~about 0.1 rad.1"'zarefors acommon expsrimenral J ~ }an ~LS~
<br /> R cads, dellvereo ~ an instant ("acute" dose deli Y~, is C A.n b ~
<br /> about 1,000 t.imss higher than the tonal annual natural dose. And yet
<br />
<br /> pp e.:par,m nrs show r„-= human'ea~t~t`cighi'epar capsciti`yr
<br />
<br /> I xr enzymesJ,~'o Sope+°6+ith~~GB u Indeed z'epaxr~
<br /> c ty seems 'not averw'het~mecj'•evon a •;r~osear~a 5"QO -tads -and mora~
<br /> ,;i _ _ _ ~
<br /> i. Thy s:cplanation for residual, post-repair damage i°
<br /> rot a lack of rape---e.apac.ity or time, but rathar~an.!:inFierent~
<br /> ixiahflity of the repair-system to ifix~certain complex injuries to ;
<br /> gen+?tic moler_ules~.~
<br /> :a .i
<br /> j. + A radiation-induoed chromosome abnormality does not
<br /> always r'; 11 the c=__ in wh;eh it. pets i:_:ts, nor does ir_. always
<br /> graven`. `he _.m c.. :~.=iinr,. When the injured cell divides, the
<br /> same injury is ter-.cared in the new calls In ~.ha A-bomb surv.,;;r,,
<br /> _;;rsa cnr°`""=sc;na ~ ,-mal;r.ies lave bean obser•?ed even 40 years
<br /> -
<br /> _._ter ie ._'.rnb;.ri,;= T}xe;r ra:~liar.ion-caus:at.ion is indioated by file
<br /> posi t; ve _„_=.._-r=_: ,^_=n-_-e' The higher the bomb-dose, the higher the
<br /> frsquenay of~abnnrm.alit.ias (P;oda.u,a 199:=).
<br /> k. x Residual unrepaired and misrspaired chromosome
<br /> damag<_ ..,.;rne.z, ".,_._,_1 :amk:1•=s ;rr~3dt.a_t._d ;n !ab d;_h«;~- %.n vi*.ro%,
<br /> is visually detecra:ble at acu*,e radiation doses as low as 2 cads,
<br /> de_~p;ite cr,a<ia mec.;__~s cT obsarvar;~:n (I lo,Yd 195:_:. Mora.-vet, t-•ha
<br /> residual genet.;c u=_mage which can n.=t be d?t.eoteri with su_h mer.ho,ds
<br /> Cn,~,y a;np; -he arrc,_r= e3ar. _~,_r.~d,
<br /> L, * J7c,.es residual damage also exist, after repair-time,
<br /> if low doses are received slowly by living humans (:n vivo!' ','es,
<br /> roc exam_r_~1~, ?'-~`~ra _hrcmc=_:ome damage has been :~hserveci amp.=ng Alaskan
<br /> nar.i7e': ,.'L: RI n,.~:.33r 'iii lour„ in Sjii t.a Of very ~iradua} aCCUIilU is6l nn
<br /> GT- 3r%vUt.•..`)~~ e'n. t,ra e:CpoSUI"B per vaar i•:r iQ yaar'v SAC
<br /> i970 ? : ~a __~nr _ mosc:ne cia.maga ha-_ bean observed among rnac leer
<br /> docb.yard workers ?=--posed very slowly to les°. than 5 rods par year
<br /> ( Evans 1=l , ; ar:-ra ;:.hrouu,some damage has been c:bsarvad amnr~7
<br /> various population= living where the chrorac natural dcaa from
<br /> radiation abo~-= 3verac;e (for ?>:ample sae Barcinsl~:i ;~97G;
<br /> Maruvama 197E?. [Oe~ae cad is also called 0.01 Gray.I
<br /> Part * Where•'„ the Controversy, in Visw of S,ach F,vidance?
<br /> m. * 1: residual genets damage }lao bael-i nbsarvad even
<br /> from low radiation. doss ar. slow dose-rates (para. L, abc~:e), how:
<br /> q..:..:!..r.w^ -...~..,M- Fva.t yePwyt'. y N. ' ~ S~
<br /> can.-anyone still,.claim,thateev,iderlpe~rof,harmFat low. doses.ris dust
<br /> tlletiC3 car that harm requirss high drGes?
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