Environmental Engineering Reference
In-Depth Information
As. can. be. seen,. the. whole. intent. of. this. bloodborne. pathogen. regulation. is.
based.on.prevention.of.diseases.that.can.result.from.exposure.in.the.workplace.to.
these.organisms.
cArcInogens
Cancer.exposure.risk.for.the.general.public.is.set.at.1.in.1,000,000.by.the.U..S..Environ-
mental.Protection.Agency.while.the.Occupational.Health.and.Safety.Administration.
exposure.standards.are.usually.less.protective.of.workers.at.1.cancer.case.in.1,000..
This.is.a.“fence.line”.mentality.that.seems.to.suggest.that.workers.can.withstand.high.
levels.of.exposure.
Carcinogens. are. substances. or. agents. that. have. the. potential. to. cause. cancer..
Whether.these.chemicals.or.agents.have.been.shown.to.only.cause.cancer.in.animals.
makes.little.difference.to.workers..Workers.should.consider.these.as.causing.cancer.
on. a. precautionary. basis. as. all. is. not. known. regarding. their. long-term. effects. on.
humans..Since.most.scientists.say.that.there.is.no.known.safe.level.of.a.carcinogen.
exposure,.then.no.exposure.should.be.the.goal.of.workplace.health.and.safety..Do not.
let.the.label.“suspect”.carcinogen.or.agent.put.the.mind.at.ease..This.chemical.or.
agent. can. cause. cancer.. The. Occupational. Safety. and. Health. Administration. has.
identiied.thirteen.chemicals.as.carcinogens..They.are.as.follows:
•. 4-Nitrobiphenyl,.Chemical.Abstracts.Service.Register.Number.(CAS.No.).
92933
•. alpha-Naphthylamine,.CAS.No..134327
•. Methyl.chloromethyl.ether,.CAS.No..107302
•. 3,3′-Dichlorobenzidine.(and.its.salts),.CAS.No..91941
•. bis-Chloromethyl.ether,.CAS.No..542881
•. beta-Naphthylamine,.CAS.No..91598
•. Benzidine,.CAS.No..92875
•. 4-Aminodiphenyl,.CAS.No..92671
•. Ethyleneimine,.CAS.No..151564
•. beta-Propiolactone,.CAS.No..57578
•. 2-Acetylaminoluorene,.CAS.No..53963
•. 4-Dimethylaminoazobenzene,.CAS.No..60117
•. N-Nitrosodimethylamine,.CAS.No..62759
There.are.many.other.chemicals.that.probably.should.be.identiied.as.carcinogens,.
but.have.not.stood.the.scrutiny.of.the.regulatory.process.to.make.them.such..This.is.
probably,.in.many.cases,.due.to.special.interest.by.manufacturers.and.other.groups.
The.OSHA.regulation.29.CFR.1910.1003.pertains.to.solid.or.liquid.mixtures.contain-
ing.less.than.0.1.percent.by.weight.or.volume.of.4-nitrobiphenyl,.methyl.chloro.methyl.
ether,.bis-chloromethyl.ether,.beta-naphthylamine,.benzidine,.or.4-amino.diphenyl,.and.
solid.or.liquid.mixtures.containing.less.than.1.0.percent.by.weight.or.volume.of.alpha-
naphthylamine,.3,3′-dichlorobenzidine.(and.its.salts),.ethyleneimine,.beta-propiolactone,.
2-acetylaminoluorene,.4-dimethylaminoazobenzene,.or.N-nitrosodimethylamine.
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