Steve LaCroix MS, CBSP State of Washington Department of Health Public Health Laboratories 206-418-5437 steve.lacroix@doh.wa.gov -1-
Rely on past experiences Systematic Applicable across work activities Develop strategy Gather resources & utilize expertise -2-
-Biohazards -Kneeling -Bright light -Lifting -Chemicals -Low overhead objects -Dust -Noise -Falling objects -Radiation -Falls -Repetitive motion -Flying particles -Sharp objects -Hot environments -Shipping -Hot or cold objects -Splashes -3-
-4-
Very high Likelihood of adverse effect High Medium Low Consequences of adverse effect -5-
Hazard = A property of a substance, activity or situation that has the potential to cause harm. Risk = The probability that the harm linked to a hazard will actually occur, taking into account also the severity of that harm. -6-
Ha Hazard ard Conseq sequenc uence Risk sk Asses Assessment M sment Matrix atrix Insignificant Minor Moderate Major Cri ritica tical Medium Medium High Extreme Extrem treme Highly Likely kelihood od Low Medium High High Extrem treme Likely Likelih Low Medium High High High Hi gh Possible ard Li Hazard Low Low Medium Medium Hi High gh Unlikely Ha Rare are Lo Low Lo Low Lo Low Med ediu ium Med ediu ium -7-
Descri scripti tion on of of R Risk sk Leve vel Acti tions ons If an incident were to occur, there Und nderta ertake ke th the e acti tivi vity ty wi with th th the e would be little likelihood that an Low ow existing isting con ontr trol ols s in n place injury would result If an incident were to occur, there would be some chance that an Mo Moderate te Additi tiona onal con ontr trol ols s are advi vised ed injury requiring First Aid would result If an incident were to occur, it would be likely that an injury Con ontr trol ols s wi will need need to to be in in pl place e High Hi gh requiring medical treatment would befo fore e acti tivi vity ty is un undert dertaken aken result If If an i n inc ncid iden ent t we were e to to o occur ur, it t Con onsi sider der alte tern rnati tives ves to to doi oing ng woul wo uld be li like kely ly th that t a perma manen nent, t, the acti th tivi vity ty. Sign gnific ficant ant con ontr trol ol Extreme treme debilit itating ting inj njury ury or or d death th wo woul uld me measures sures wi will ne need ed to to be resu sult imp mplemented mented to to ensure nsure safety fety -8-
Acceptability of Risk Risk Risk Acceptability Recommended Actions Score Level of Risk No additional risk control measures required. To continue to monitor to ensure Low <3 Acceptable risk do not escalate to higher level. Risk Acceptable to carry out the work activity; however, task need to be reviewed to bring risk level to As Low As Reasonably Practicable. Medium Moderately Interim control measures such as administrative controls can be implemented. 3 – 4 Risk Acceptable Supervisory oversight required. Job must not be carried out until risk level is brought to at least medium risk level. Risk controls should not be overly dependant on personal protective equipment. Controls measures should focus on Elimination, substitution and engineering High controls. >4 Not Acceptable Risk Immediate Management intervention required to ensure risk being brought down to at least medium level before work can be commenced. -9-
Risk matrix to determine Risk Level Likelihood Remote (1) Occasional (2) Frequent (3) Severity Minor (1) 1 2 3 Moderate (2) 2 4 6 Major (3) 3 6 9 -10-
Haz Hazar ard Ri Risk sk Ca Careless reless ha handl ndling ing of of Needle stick (physical) SH SHAR ARPS PS (n (needle eedles, s, etc. tc.) infection from exposure Po Pouri uring ng ha hazardous zardous Chemical splashing, possible burn and /or chemical ch chemi mical cals exposure Ove verloa rloadin ding g ele lectric ctrical al Damaging equipment, starting fire (physical), ci circ rcui uits ts electrocution -11-
For the following scenarios, draw a STAR where the risk would fall on the graph. Yo You are re in in an o n ope pen n fi field ld Yo You are re in in the e zoo, o, Yo You are re holding olding a next xt to a ve very ry hu hungr ngry, , obser erving ving a c caged ged tig iger er cub wit ith a h a aggre ressive sive adult ult tig iger er. T . The he adult ult tig iger er, wh , which ich is is pla layful ful tempe mperamen rament t tig iger er is is un unre restrained trained and and well ll f fed ed and and has as a mi mild ld in your ar in r arms ms. sees you u as fo food od. tempe mperament. rament. Likelihood Likelihood Likelihood Consequence Consequence -12- Consequence Gaudioso & Salerno
What is the hazard? What is the likelihood of exposure? RISK What are the consequences of exposure? Likelihood Consequences -13-
The evaluation of risk is highly related to the “Risk acceptance”. Risk evaluation and acceptance can vary with culture, experience, resources, management, and even current events. -14-
CEN CWA 15793 -15-
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