Environmental Engineering Reference
In-Depth Information
The values.derived.are.placed.in.the.Risk.Score.Formula..Then.you.would.calculate.
a.risk.score.
Risk Score Formula Consequences Exposure Probab
=
×
×
ility
.
Once. you. have. a. risk. score,. you. should. compare. it. to. the. following. criteria. to.
determine.the.need.for.action..If.the.score.is.between
•.
18.and.85,.the.hazard.should.be.eliminated.without.delay,.but.the.situation.
is.not.an.emergency.
•.
90.and.200,.this.is.urgent.and.requires.attention.as.soon.as.possible.
•.
270.and.1,500,.this.score.requires.immediate.corrective.action..All.activity.
should.be.discontinued.until.the.hazard.is.removed.or.reduced.
A.risk.score.will.not.necessarily.garner.support.for.the.removal.or.reduction.of.a.
potential.hazard..The.questions.asked.are,.“How.much.will.it.cost?”.and.“How.much.
hazard.reduction.will.be.derived.from.ixing.the.dangerous.situation?”.Fine.(1973).
went. beyond. the. risk. score. and. developed. a. Justiication. Formula.. The. formula.
includes. factors. for. cost. and. the. degree. of. correction.. The. resulting. rating. .values.
for. the. cost. and. degree. of. correction. factor. can. be. extracted. from. Table 1.1.. The.
Justiication.Formula.is.as.follows:
Consequences Exposure Pro
× × bability (Risk Score)
Cost Factor Degree of Cor
Justification Formula
=
×
rection
.
For.a.Critical.Justiication.Rating.greater.than.10,.ixing.the.hazard.is.justiied..For.a.
score.of.less.than.10,.ixing.the.hazard.is.not.justiied.
Any.time.you.can.quantify.something,.you.have.a.better.chance.of.proving.your.
point.or.gaining.acceptance.for.it..Most.managers.and.others.pay.more.attention.to.
numbers.that.support.a.case.for.risk.reduction.than.to.rhetoric.
Thus,.when.discussing.risks.related.to.occupational.safety.and.health,.being.able.
to.determine.a.value.that.equates.to.the.degree.of.risk.gives.each.company.a.measure.
for.deciding.how.much.risk.it.is.willing.to.assume..This.is.best.accomplished.using.
a.quantitative.approach.as.discussed.previously.
rIsk control
The.key.to.risk.control.is.to.prevent.exposure.of.those.who.could.be.at.risk..In.the.
workplace. it. is. not. possible. to. have. no. exposure. if. anything. is. going. to. get. done..
It. is. important. to. limit. the. potential. exposure. or. amount. of. exposure.. The. basic.
principles. of. protection. from. radiation. exposure. provide. the. foundation. for. risk.
control.. The. three. elements. of. exposure. control. are. distance,. time,. and. shielding..
Distance.provides.the.best.mechanism.to.prevent.exposure..Distance.can.be.physical.
distance. or. remote. distance. where. robotics. can. provide. the. distance. and. limit. the.