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`►� 'table I -. <br /> i <br /> Ilazard lixpoaure GuldeJ lne <br /> i <br /> Cal OSIIA 1911(1-Oy ACC 111 <br /> Substances 1'F:l, 'I IN <br /> ---=--------------------- <br /> lu pprn ('fWA 1 1U film" (IWA) <br /> benzene 25 film" (SILL) <br /> 25 plmr (ERC) <br /> 50 film" ICeiling) <br /> Ivluene IUU Pim" IOU pian (TWA 1 <br /> 70u film" (celling) 150 film" (31'ELI <br /> leve lud film" ('IWA) IOU ppm (7WA) <br /> R <br /> Y 150 film" (SILL) <br /> i <br /> JUU plmn ('IWA) <br /> 019011110 500 ppm (TWA) 500 film" (3'1'LLI <br /> 711 film" 1'IWA) .045 plmnOWA) <br /> IStheld.lbrtim°1t1e . IJ fi(m"(SICL) <br /> JO film" (C1.01119) I <br /> 5U film" (5min, Max Peale) <br /> r 7 <br /> 1'etraeLlrYl Lead .075 mg/m3 u-15 mg/m <br /> All of (lie above arc ctm"fiounds I,hal. may be encountered during excavaLlon. <br /> CCmimll011 sense Jlctates when levels ar•e such that extra 1»-otecLla� !s neces- <br /> sary. <br /> J <br />