OCCUPATIONAL ASTHMA
Worker Guide
October 2000
QUEENSLAND
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 2 of 9 October 2000
Contents
1. ABOUT OCCUPATIONALASTHMA 3
1.1 What is asthma?
3
1.2 What is occupational asthma?
3
1.3 Occupationalasthma from sensitisation
3
1.4 Irritant induced occupational asthma
3
1.5 Symptoms of occupational asthma
3
1.6 Work-aggravated asthma
4
2. OCCUPATIONALASTHMA AND YOU 5
2.1 Introduction
5
2.2 Risk Management
5
2.3 Information and training
5
2.4 Self-reporting
6
2.5 First aid
6
3. CHECKLISTS 7
3.1 Introduction
7
3.2 Sensitisers
7
3.3 Irritants
8
FURTHER INFORMATION 9
Asthma Queensland
9
Division of Workplace Health and Safety
9
Legislation
9
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 3 of 9 October 2000
1. About occupational asthma
1.1 What is asthma?
!
Asthma is a condition of the lungs, which
can be caused by breathing in certain
substances known to be sensitisers and
irritants.
!
Asthma occurs when:
"
the inside lining of the airways
become red and swollen (inflamed)
"
the muscle around the airways
tighten.
This makes it harder for air to flow in and out
of the lungs.
!
This results in one or more of the
following symptoms:
"
shortness of breath
"
tightness of the chest
"
coughing (dry or with mucus)
"
wheezing.
1.2 What is occupational asthma?
Occupational asthma is asthma that is
caused by breathing in a respiratory
sensitiser or irritant
at the workplace
.
1.3 Occupationalasthma from
sensitisation
!
A respiratory sensitiser is a substance
which, when breathed in, can cause an
allergic response in the airways of the
lungs.
!
Occupational asthma from sensitisation is
usually the result of numerous exposures
to a sensitiser, over a period of time.
!
Symptoms do not usually appear after
the first exposure to the sensitiser. The
time taken for symptoms to appear varies
greatly – from weeks to years.
!
Once sensitisation has occurred:
"
subsequent exposure to the same
sensitiser, even to very small
amounts, will produce symptoms
"
continued exposure to the same
sensitiser can result in increasingly
severe symptoms and possibly
permanent asthma
"
exposure to another trigger, such as
cigarette smoke, may also produce
symptoms.
!
See section 3 of this booklet for a list of
some of the sensitisers that may cause
occupational asthma and some of the
occupations most at risk.
1.4 Irritant induced occupational
asthma
!
A respiratory irritant is a substance
which, when breathed in, can cause
irritation to the airways of the lungs.
!
Irritant induced asthma is usually the
result of a single, very high exposure to
an irritant - often the result of an accident
(eg chemical spill) or poorly designed
work procedures.
!
Usually, symptoms appear within 24
hours of exposure.
!
See section 3 of this booklet for a list of
some of the irritants that may cause
occupational asthma and some of the
occupations most at risk.
1.5 Symptoms of occupational
asthma
!
Symptoms of occupational asthma:
"
often occur at night and you may not
associate them with work, but may
occur during the working day
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 4 of 9 October 2000
"
vary across the working shift or week,
usually worsening towards the end of
the week
"
usually improve over a few days off
work, over weekends or holidays.
!
If occupationalasthma is identified early
enough and appropriate action is taken,
there is a good chance that the
symptoms will decrease and, in many
cases disappear.
1.6 Work-aggravated asthma
!
If you already have asthma it may be
worsened or aggravated by
environmental conditions at the
workplace.
!
Some of the agents at the workplace that
may aggravate asthma include:
"
sensitisers, eg pollens, moulds, dust
mites
"
irritants, eg tobacco smoke
"
changes in temperature
"
exertion eg exercise
"
emotions eg distress, excitement.
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 5 of 9 October 2000
2. Occupationalasthma and you
2.1 Introduction
!
You have a right to health and safety at
work. This includes the right not to be
exposed to substances, including
hazardous substances, that may cause
occupational asthma.
!
Your employer has an obligation, under
section 28 of the
Workplace Health and
Safety Act
1995
, to ensure the health and
safety of each of their workers at work.
This means your employer must take
steps to eliminate, or at least minimise,
exposure to substances that may cause
occupational asthma.
!
However, you must follow safety
instructions given by your employer and
you must wear any personal protective
equipment provided by your employer, if
you have been properly instructed in its
use.
2.2 Risk Management
Hazard identification
!
Your employer needs to:
"
find out if there are any sensitisers or
irritants at the workplace which can
cause occupationalasthma and
"
tell you what these sensitisers and
irritants are.
!
If any of these substances are hazardous
substances, you have a right to see the
Material Safety Data Sheet (MSDS) for
these substances.
!
Ask your employer for information about
the substances used at your workplace
eg solvents, latex, epoxy resins. See the
list at the end of this guide for further
examples.
Risk assessment
!
Your employer needs to:
"
determine whether these substances
are likely to cause occupational
asthma and
"
tell you the results of the risk
assessment.
!
Your employer may also need to carry
out:
"
workplace monitoring to determine
the possible level of exposure to a
hazardous substance
"
health surveillance to find out if a
worker's health is being affected by
exposure to the hazardous substances.
Control measures
!
Your employer must:
"
implement controls that will eliminate,
or at least reduce the risks associated
with sensitisers and irritants at the
workplace
"
tell you what these controls are and
tell you how to use them correctly.
!
For example, your employer may provide
you with Personal Protective Equipment
(PPE), such as a face mask, to minimise
exposure to sensitisers such as flour
dust.
!
You must use the control measures
provided by your employer.
!
You should report defects in control
measures, eg faulty extraction ventilation.
2.3 Information and training
!
If you may be exposed to a hazardous
substance your employer must provide
induction and ongoing training about the
substance and the controls for it.
!
Your employer may also provide
information and training on other
substances that may cause occupational
asthma.
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 6 of 9 October 2000
2.4 Self-reporting
!
Your employer should:
"
provide you with a procedure for
reporting symptoms
"
tell you how to use this procedure
"
encourage you and other workers to
use this procedure.
!
If you have symptoms of occupational
asthma you should:
"
report the symptoms, as soon as you
become aware of them, to one or
more of the following:
– your employer or supervisor
– first aid personnel
– the occupational nurse
– the Workplace Health and Safety
Officer
– your family doctor
– an occupational asthma
specialist.
"
use the procedure for reporting
symptoms of occupational asthma, if
there is one at your workplace
"
ask to be removed from the problem
environment.
!
If you have any concerns about
occupational asthma at your workplace
you should raise them with:
"
your employer or supervisor
"
the Workplace Health and Safety
Officer
"
the health and safety representative
"
the workplace health and safety
committee.
2.5 First aid
!
If you have asthma you should:
"
bring your personal asthma
medication, ie reliever (blue inhaler -
eg Ventolin, Asmol, Airomir, Bricanyl)
to work.
"
learn how to use the
4 STEP
EMERGENCY ASTHMA CARE
on
the last page – this page may be
copied and enlarged and placed in a
visible location, eg the first aid room.
!
Your workplace must have first aid
equipment and facilities readily available
for use.
!
The first aid kit should include a spacer
(eg Volumatic, Nebuhaler) for use with
each worker’s personal reliever.
You should have access to trained first aid
personnel.
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 7 of 9 October 2000
3. Checklists
3.1 Introduction
!
This section outlines:
"
some of the common sensitisers and
irritants that may cause occupational
asthma
"
occupations most at risk.
!
There are many other sensitisers and
irritants which may cause occupational
asthma. For more information contact the
Division of Workplace Health and Safety
(see details on the last page of this
guide).
3.2 Sensitisers
Many substances can cause respiratory
sensitisation. There are three common
groups:
1. substances of plant origin
2. substances of animal origin
3. substances of chemical origin.
1. Common substances of plant origin
Agent Occupations most
at risk
grain dust and flour
colophony resin
western red cedar
dust and other
woods
latex
tea and coffee
dusts
hay
cotton
millers, bakers
electronics workers
woodworkers
health care workers
packing workers
farm and produce
workers
cotton ginnery
workers
2. Common substances of animal
origin
Agent Occupations most
at risk
laboratory animal
dust
bird products
shellfish &
crustaceans
detergent enzymes
insects (eg
silkworms)
cockroaches
animal carers
poultry farmers
processors
soap powder workers
silkworkers
entomologists
3. Common substances of chemical
origin
Agent Occupations most
at risk
glutaraldehyde
diisocyanates
epoxy resin
aluminium pot-
room fume
metal salts,
platinum, cobalt,
nickel
nurses, poultry
farmers, vets, dark
room workers
spray painters,
polyurethane foam
manufacturers
spray painters
smelter workers
metal platers,
processors
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 8 of 9 October 2000
3.3 Irritants
Irritant induced asthma often follows a single,
very high exposure to substances that are
common to many workplaces. The following
is a list of some of the known respiratory
irritants.
Some known irritants
Solvent vapours
Corrosive mists:
– acid mist
Irritant gases:
– hydrogen chloride
– ammonia
– chlorine
– sulphur dioxide
– nitrogen dioxide etc
Irritant particles:
– dust
– smoke
Occupational AsthmaWorker Guide
Workplace Health and Safety Page 9 of 9 October 2000
Further Information
Asthma Queensland
Asthma Queensland can:
"
arrange asthma education and training
sessions
"
provide asthma information, resources,
guidance and support
"
answer specific queries – call the number
below to speak to a trained asthma
adviser.
Phone: - 1800 645 130 (not available
from mobile phones)
- (07) 3252 7677
Fax: (07) 3257 1080
Email: admin@asthmaqld.org.au
Website: www.asthmaqld.org.au
Division of Workplace Health and
Safety
Phone: 1300 369 915
Fax: (07) 3247 4519
Website:
www.detir.qld.gov.au
, click
on
Health and Safety
Address: PO Box 69
Brisbane QLD 4001
Legislation
The following legislation is available on the
Division of Workplace Health and Safety
Website (see address above) and can also
be purchased from GoPrint (371 Vulture St,
Wooloongabba, Ph: (07) 3246 3399):
Workplace Health and Safety Act 1995
Workplace Health and Safety Regulation
1997
Workplace Health and Safety
(Miscellaneous) Regulation 1995
Hazardous Substances Advisory Standard
First Aid Advisory Standard
EMERGENCY ASTHMA CARE
Fast Action Saves Lives
Continue to repeat steps 2 and 3 while waiting for the ambulance.
*Use a puffer (ie. Ventolin
TM
, Airomir,
Asmol, or Bricanyl) on its own if no
spacer is available.
QUEENSLAND
For more information about asthma, contact your local Asthma Foundation on 1800 645 130
Disclaimer: The information in this poster is not intended to replace individual medical advice.
. OCCUPATIONAL ASTHMA
Worker Guide
October 2000
QUEENSLAND
Occupational Asthma Worker Guide
Workplace Health and Safety. ABOUT OCCUPATIONAL ASTHMA 3
1.1 What is asthma?
3
1.2 What is occupational asthma?
3
1.3 Occupational asthma from sensitisation
3
1.4 Irritant induced occupational