text_combined: adam l beberg bebergmithralcom glad finally figured one note careful wording exhaust may beneficial ones health long glass day cheese interesting timing since 16000 truckers lost jobs dont worry death anymore adam l duncan beberg httpwwwmithralcombeberg bebergmithralcom epa diesel exhaust cause cancer wed sep 4 329 et h josef hebert associated press writer washington ap inhaling diesel exhausts large trucks sources time cause cancer humans environmental protection agency news web sites report concludes decade study epa finding released tuesday expected buttress governments push reduce truck tailpipe emissions requiring cleanerburning engines diesel fuel ultralow sulfur content acknowledging uncertainties longterm health effects exposure diesel exhausts epa report said studies involving animal tests occupational exposure suggest strong evidence cancer risk humans reasonable presume hazard extends environmental exposure levels well report said potential human health effects diesel exhausts persuasive even though assumptions uncertainties involved report mirrors conclusions made previously documents various world health agencies studies california particularly significant epa federal agency regulates diesel emissions clean air act environmentalists raised concerns recently bush administration might try back away clintonera regulation would establish tougher requirements emissions large trucks separate rule virtually would eliminate sulfur diesel fuel epa administrator christie whitman repeatedly promised go ahead tougher truck diesel rules last month white house approval epa rebuffed attempts diesel engine manufacturers postpone requirements approving new penalties manufacturers fail meet october deadline making cleanerburning truck engines engine rule affect emissions trucks already road although separate regulation cutting amount sulfur diesel fuel expected produce pollution reductions epas 651page diesel health assessment attempt estimate probability individual getting cancer given certain exposure diesel exhaust risk assessment commonly made epa gauging pollution health concerns case report said exposureresponse data considered uncertain produce confident quantitative estimate cancer risk individual nevertheless said report totality evidence human animal supporting studies suggests diesel exhaust likely carcinogenic humans inhalation hazard applies environmental exposure report reiterated environmental exposure diesel exhausts poses shortterm health problems long term shown chronic respiratory hazard humans contributing increased asthma respiratory problems urban areas diesel exhausts account much quarter airborne microscopic soot report said environmentalists welcomed study clear evidence pollution needs curtailed large trucks also offroad dieselpowered vehicles epa spokeswoman steffanie bell said agency expects publish rule early next year dealing diesel exhaust sources include farm tractors construction equipment emily figdor us public interest research group private environmental organization said reduce publics exposure harmful diesel emissions bush administration fully implement clean air standards diesel trucks buses pass equivalent standards diesel construction farm equipment allen schaeffer executive director industry group diesel technology forum said epas report focused past whereas future clean diesel diesel trucks buses built today eight times cleaner dozen years ago report acknowledged findings based emissions levels mid1990s said results continued valid slow turnover truck engines kept many vehicles road wed 4 sep 2002 084811 0700 pdt epa stunned diesel exhaust cause cancer