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Attachment C base-4 or: a determination that L r threshold for hazardous biological effects was ar.pproxiy-;v 4 wa-_, e: kilcg::a.:. (.. NV/kg) ['Wikg' is an, expression for the rare of energy absorption in L:c body ziven er.r. s cf the s%+. ::iic absorption rate' Cr 'S AR'J. A safety factor of teen was then .== arrive at �` final vw...T+. �,.. .. /� o ct ., G•q eii..� other t::_ �:C:.: ;�C = CO a. `%:. t. i.._: 1, r' � .:{_-. Ys'ut.._.10i. .tld_...,,_S. In Or._. ::Or::S nrct-oleo_ sruides : be ccr. _lat-d with an S. LR tY--rsaold cf about 0.4 w /k;" (FCC, OFT �Lt:l1 e•i s= references). a Si s adcgted C95.1-1992, a revision cf the 19E2 s aida.d ar�i the FCC has proposed its . oo i !9 The =,.. ont in rr c of •gra is • differences s fro f+�1 guidelinesd SV. ter Nt: C... ..._ � N standardf"contains a .�.`r.ri.ti.. V 1 �1��1MiL r.:l: _. ..rLv.7 .. bL and -+.en 1 issued M A 1992 `l�_l� more r-:.:..:_.._..,..at:ors :ss�..... by ANSI in 198 in r.,.3:.� respects, t:.- *sic :..._s are ,.,c. restrictive in the ar:cu::: of e^v,-c=enral RF exres,re pe=iti:d, and they aiso extend the frequency range under consideration to cave: fir..^ue=ies f a 3 k+Fz [kilohertz] to 300 Gat. Lig`:_^. ]. The new 1992 guidelines specie two sets of expost:re r-^o=-rda.tie^s, cr: for 'controlled enviro=c s' (us.taliy involving workers) and another for '•uncont-olled enviro=ents' (usually involving the gen-ral public). Tne 1982 guidelines specified only one s..of : i i -thouwhether he +� 'vidt:al exposed was a worker or a z=: b r .., exposure .,... n. r__2a..: s of . r.:n_ the I...Gi ..,. of the gene. -t public I. addition to Ms ANSI s_rCarw , there are .*O_GZde.v C15;rSS... S= .r .5: that at OI the National Council on Radlaton Pr Ot c on (V CP) and that of the Inte^_ a on l Radiation Protection ?ssx:at:on (LR.PA). The NCRP is a non-profit corporation c::artz 4 by the United States Ccnzress to. a=cng other things, develop infor-A-ion and r.. o endaticns concerning radiation :,rote::ion. The NCR? is rade up of the ==bees ana participants who serve on its va:ict:S s:.ie rific coh;u'nitts The guidelines issued by the NC.? spec fy a level of 1 tnw/c' •1iiiiwazs per square cent-•--) for the exposure of the general _public is the frequency mange of1.5to300G=_. The IRPA is a •?o:.: ?0ve:7_-rienta: international JrH=r 'IIOn r:pr'sc:::::lar..:CSt of the iaOua1 radiation protection societies L, the world. These reco-entadors for= pa, of the World Hal_: Qr?a'._.'sticn (WHO) United Nations ��j!Envir :i ental Pro •�• e g�i/.:.i es forpublic ev'.cSii:: re^.ot� end 1 .^'/1r•/ - +.er- e _ ..+ and I 0 irz.. Y_.r._ ♦._ nr _r Cr Le rr C a�:d �lrO C- IPA So-: states, including Massa:hi:s::-s, New Jersey, Crezot:. and Ri ashngcn, as well as some local JuriSdicacrs have adopted t e r own rdia*'on guidelines. Radiation Levels The levels of RF art iP to w i:h v::blic is ot:-= ely e os d are ;a: below the levels =.--c:.sz : to nos: a health risk. A 1989 :moon by the Office of =: ,i ing and Tech o1og~y started tit the U.S.^vlroc —_ a1 Protection Agency es-.:nZates that in seven t .e 000litan ar..as s :die across the United States, 98 to 99 percent of the population is expos to less than 0 001 = ic=2 cf radiation. The c.:--mot ANSI sir l*d power density e r levels is .580 .. for ..� i�OS�a levels m w This standard is considerably more r esu i. ive than the 1 to `►17!CTic sanidzrd set by N C R? an.. the LAP A. • Zi