Post on 02-Apr-2018
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What is Occupational Hygiene?
Mike Slater
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Occupational
Hygiene?
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Occupational
Hygiene?
NO!
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Occupational Hygiene?
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Occupational Hygiene?
NO!
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Hygiene
Conditions or practices conducive
to maintaining health andpreventing disease
http://oxforddictionaries.com
http://oxforddictionaries.com/http://oxforddictionaries.com/7/27/2019 Presentacin Higiene Industrial
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According tothe WHO,
globally, thereare:
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2,000,000work-related
deaths peryear
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386,000 deathseach year fromexposure to
airborneparticulates
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152,000deaths peryear from
carcinogens inthe workplace
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37% of LowerBack Pain isattributed tooccupation
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Occupational hygiene is
about the prevention of
ill health caused by work
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We do that by the
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Recognition
We do that by the
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Recognition Evaluation
We do that by the
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Recognition Evaluation Control
We do that by the
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Recognition Evaluation Control
We do that by the
of hazardous agents
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Chemical hazards
There are many thousands of hazardous chemicals
commonly used at work.
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Chemical hazards
Chemical hazards also include:
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Silica released during stone cuttingactivities
Source: HSE
Dusts in this case stone dust contains crystalline silica
which causes silicosis, a serious lung disease
Now you see t
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Now you see t
Mists in this case paint containing isocyanates, a
major cause of occupational asthma
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Vapours are given off paints and other solvent
based products such as inks and adhesives
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Fume very fine particulate matter
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Physical agents
Hazardous physical agents include noise,
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Vibration (this hand grinder will also produce high
noise levels)
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Non-ionising radiation like theultra-violet radiation
generated by arc welding
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The thermal environment hot and cold
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Biological hazards
Biological agents like the micro-organisms that can
cause legionnaires disease and anthrax
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Ergonomic hazards
Back and muscular damage caused by poor manual
handling practices
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Tasks involving repetitive actions
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The use of display screen equipment
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OccupationalHygiene
Chemistry
Physics
Biology
Engineering
Law
Toxicology
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OccupationalHygiene
Chemistry
Physics
Biology
Engineering
Law
Toxicology
Occupational hygiene is a multi-disciplinary science
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Recognition Evaluation Control
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Recognition Evaluation Control
Occupational hygienists are trained to anticipate and
recognise health hazards at work
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Bakers are exposedto flour dust which
can cause
occupational
asthma
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Bakers are about80 times more
likely to develop
occupational
asthma than the
average British
worker
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Coal miners andquarry workers are
exposed to dust
that can cause
silicosis a serious
debilitating lung
disease
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Cleaning withsolvents can lead to
dermatitis and
exposure to solvent
vapours.
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And some solventscan be absorbed
through the skin
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This worker is
exposed to dust,
noise and vibration
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Arc welders are
exposed to metal
fumes which can
cause metal fumefever
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and, in some cases,
asthma and lung
cancer
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Theyre also
exposed to irritant
gases and ultra-
violet radiation
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Recognition Evaluation Control
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RISK =
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RISK = Hazard x
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RISK = Hazard x Exposure
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RISK = Hazard x Exposure
Exposure assessment is an important part of the
occupational hygienists role
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RISK = Hazard x Exposure
This can involve:
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Personal exposure sampling
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Exposure modelling
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Observations
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BiologicalMonitoring
Which may involve taking blood samples
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But taking urine samples is usually preferable as its
easier and more acceptable to the worker
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Recognition Evaluation Control
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Prevention
Engineering
Work practices
PPE
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Prevention
Engineering
Work practices
PPE
This is the hierarchy of control
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Prevention
Engineering
Work practices
PPE
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Prevention
Elimination Substitution Processchange
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Prevention
Engineering
Work practices
PPE
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Containment
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A fume cupboard an example of local exhaust
ventilayion
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Photograph
courtesy of
HSE
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Prevention
Engineering
Work practices
PPE
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Time Reduce exposure timeJob rotation
Work rest regimes
Work scheduling
Distance SegregationRestrict access
Rest areas
Organisation Reduce numbers exposed
Good working practiceWritten procedures
Permits to work
Work practices / organisation
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Prevention
Engineering
Work practices
PPEPersonal protective equipment which should be
the last resort
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Respiratory protection
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Chemical protective clothing, gloves
and eye protection
M
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Management measures
Maintenance of controls
Supervision
Exposure monitoring
Screening & health surveillance
Information, instruction, training
Review and audit
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www.bohs.org
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www.bohs.orgThe organisation for anyone interested in
occupational hygiene in the UK
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http://www.slideshare.net/mikeslater
mike@diamondenv.co.uk
http://diamondenv.wordpress.com
Twitter: @diamondenv
Mike Slater
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Picture credits: Stock.XCHNG - www.sxc.hu/ Cirrus Research - www.cirrusresearch.co.uk
The Health and Safety Executivewww.hse.gov.uk
www.bbc.co.uk/schools/primaryhistory/victorian_britain/children_in_facto
ries/
www.beautifulbritain.co.uk
http://www.cirrusresearch.co.uk/http://www.hse.gov.uk/http://www.bbc.co.uk/schools/primaryhistory/victorian_britain/children_in_factories/http://www.bbc.co.uk/schools/primaryhistory/victorian_britain/children_in_factories/http://www.beautifulbritain.co.uk/htm/whitworth/whitworth_museum.htmhttp://www.beautifulbritain.co.uk/htm/whitworth/whitworth_museum.htmhttp://www.bbc.co.uk/schools/primaryhistory/victorian_britain/children_in_factories/http://www.bbc.co.uk/schools/primaryhistory/victorian_britain/children_in_factories/http://www.hse.gov.uk/http://www.cirrusresearch.co.uk/7/27/2019 Presentacin Higiene Industrial
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Mike Slater, Diamond Environmental Ltd. (mike@diamondenv.co.uk)
This presentation is distributed under the Creative Commons
Attribution-NonCommercial-ShareAlike
UK:International Licence