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cmftuon detectable by current MOSH-v belated sampling mg.Regeaaed skin contact can ca=redness.blistering,and and analytical methods-The Animcan Conference of Gwent. dry,xyy dementia. mental lndusutal Hygienists(ACGIH)has designated benzene as an A2 wboince(suspected human carcinogen)having an ' assigned threshold limit value(TLV a)of 10 ppm(30 mg/int) RECOMMENDED MEDICAL PRACTICES as a TWA for a normal 8-hour workday and a 40-hour workweek • Medieal surveillanm program Worken with Potential ecpoaum to wall haards should Table L--Occupational Ccposure Jim be nowwred in a systematic program of medical surv+edlance for benzene mmded to p event or control occupauonal injury and disease. 71'e program should t ociude education of employers and wait. Exposure limits ems about work-reyted}azards,placement of workers in}obs PPro mg/ml that do not leopatdtze their safety and health,earliest' posse- - ble det�wuon of adverse health efbm zed referratl of workers OSHA PEL TWA I for diagnostic conf emanon and treatment.The o=wnmce of Short-term exposure dssase(a"simnel health everet,"SHE)or other work-related ' limit (15 nun) S — adverse haul afi m sbould prompt imneediate evatuauon of NIOSH REL (Ca)* TWA 0.1 0.32 Pnmary Pmmmtne mesinres(e.g.,mdtutnal hygiene monnor- Ceiling pS men) 1 3.2 M•C1391110antiq toads,and personal protective equipment). ACGIH TWO TWA (A2)t 10 30 A meds al svrvalh um program is intended m supplement,not replMe.such marina. ciMR) NIOSH recommends ti ming as a poientid human car. A medical su vedlanee programou shld include sysumum col- ' nosca lector and a�ixno dalogic auahym of relevant environmental t(A2)- Suspected human � . b�°i � medical saanagrarbdy.and mortality may PrOVWC information about the relatedness of adverse health dlects and occupational=- HEALTH HAZARD INFORMATION Faire that mom be discerned from results in udivdual wori=L Semcuivity,specificity,and predictive values ofbio- • Routes of expomm 10W m mew mg and medical screening tests should be evaalu- Benzene maY cause adverse halth effhCts follow-M exposure aced an an amide basis prior tr:apphcam m any given via inhalauon, ingestion, or dermal or eye contact. worker lip Intrinsic to a surveillance program is the da- * Summary of toxkxg cgy semmanon of summary data to those who need to know, in- 1 Fps on iuumals.Acule mhaluo of ham- e by lM mine, cluding employers, occupational health professionals. or rabbits paused naroosns, sponammia hart commons Ply exposed workers,and regulatory and public health (ventricular fibnllation),and death due to respiruorypanralY- 'a' sis. Subchronic inhalation of berax= by rats produced ' Pm t medical evaluation ' decreased whine blood cell tongs,deceased boas marrow axU Pnorto Phicrog a worker in a)ob with a potential for exposure activity increased teed blood Dell activity,and cmracts.In nm, tobenzem the Physician should evaluate and document the chronic inhalation ormal admimis tri tiaa afbenze ne produced worbWs baseline heahh mm with thorough medial,environ- cancers of the haver,mouth,and Zymbd gland.Inhalation of nth•aid occuPituailal hxsmr m a physeal arum stion.aid benzene by prtrt tats allied m ardation at fend develop. Physiologic and laboratory,testa appropriate for the anticipa. meru and used&W mortality. ted oecupananal nskL These should concesurane on the funic- ' 2.Epp an hu miss Asante Inhalation cgNsvre of beazere torn VIEW integrity of the eyes, skin, laver. and tapuuM. has caused neve inflammation odynim"),antral maroons nQV°a+and hematapoietic(brood-cell4mri ng)systarm 7be qm- dgx=swn,and- ficamsahnu=C2u=dcvqx=W Phyte should obtam baseline valva for the oampreto blood m benzene has podowd anorona and irr veeslbre mjwy 10 ft ooutu and a stained diNerei W count of all NOW all typ= blood4bnmq organs; dhm include no anemia and Medical ea»veilh wce for resperaaory disease shouted beeorduct- leukead by usdo pt ing do and methods recammemded mia, by • SWU need symPum ael— MOSH and the American Thnoram Socmy(AM. 1.SJiorr emir (acute):Exposure to btemene cam came dicer A preplacamamt medical evaluanom:s recommended--morder nes.CuPhoria,giddinessheadache,musw sagpning pa, todetect and assim promistus areomctusesa aoadhiams which weakness.dram-nos rcqmretcwy entation,pulmonary�- may be or tr.:silt in Increased nsk Mom a wwker 1 �. and is exposed to k I rime at or below the NIOSH REL.'M ea. 1�Ysta•Bemesne pm also rause mmum m to the sinm,eyM 1 physes should aorsider the probable frequency w and mucous membranes, tensity, and duranon of cgxmm as well as the nature and l"W'rent(theorist):Expoiam to t, w can pmm fatWm degree of the condition,is placing such a wwker.Such eoee- nervousnness.imabdity,blurred vision.and labored bran h. dKioos,which sbould Bee be regarded as absolute can mute. 2 Betlmrta 1s1�