1. 1

2. 2
By the end of the course you will be able to:-
• Identify the 3 main types of asbestos
• Identify the diseases caused by exposure to asbestos
• Understand the increased risk for smokers
• Identify some of the likely uses and locations for asbestos
products in buildings
• Know how to avoid the risks from asbestos
• Explain the general emergency procedures should asbestos
be discovered / disturbed

3. 3
 ASBESTOS is a Naturally occurring material
 3 main types:
◦ Chrysotile –
◦ Amosite – Brown
◦ Crocidolite – Blue
◦ You can’t identify the different types just from colour, as many
Asbestos fibres are embedded in other substances
 2 types of structure
◦ Serpentine – is like a coarse cotton wool, or fluffy
fibreglass, water loving and most commonly used.
◦ Amphiboles – Brown and Blue long thin fibres, water hating
WhiteWhite
WhiteWhite

4. 4
 Properties:
◦ Versatile
◦ Hardwearing
◦ High tensile strength
◦ Very Good chemical, electrical and heat resistance
◦ Resistant to acids
◦ Virtually indestructible
 The general use of asbestos is now banned.
◦ Blue and Brown asbestos banned in 1985
◦ White was banned in 1999

5. 5
 The Ancient Greeks used asbestos for wicks in lamps
(they never burnt away) – the name means
inextinguishable
 The Greeks did note a ‘sickness in the lungs’ of slaves
who wove asbestos into cloth
 The Romans used asbestos cloth napkins, which were
cleaned by throwing them into the fire.
‘PPE you say…
Well there’s a thong
or a loin cloth, which
one do you want?’

6. 6
 Deposits of asbestos are found throughout the world
 Russia (largest producer), Canada, South Africa, China
still mine it!
 Asbestos is extracted by open cast mining. It is crushed,
processed and refined into a wool like fibrous mass
 During the 1950s – 1980s, hundreds of building products
contained asbestos
 Asbestos cement products were still in use until 1999
 Use of asbestos products peaked in the Sixties and early
Seventies

7. 7
 All types of asbestos are classed as carcinogens.
◦ There is no guaranteed safe exposure limit
 Asbestos related diseases can take 15 – 60 years to
develop following exposure to fibres
 The risk of adverse effects is much higher for smokers
 People with Asthma /genetic dispositions towards weaker lung
conditions could be affected by much lower levels of fibres.
 Occupational Asthma/ other conditions - your lungs are made
permanently ultra sensitive to any dust/ fibres from past repeated
exposure.
 Asbestos fibres break down splitting lengthways, creating far thinner fibres
each time they split

8. 8
 Inhalation of fibres causes the most problems
◦ The sharp micro fibres become lodged in lung tissue, can’t be
removed, and these scar the lung tissue.
 If swallowed asbestos can cause cancer in the bowels
◦ A damaged Old Asbestos water tank, a water shortage - who gets the
last cup of water?!
 Asbestos fibres cannot be absorbed through the skin, by contact,
settlement of dust or by rubbing off dust with your hands
 A fall on a shard of Asbestos could see fibres piercing the skin into an
injury area
 Asbestos fibres can irritate the eyes, could become lodged in the soft
tissue of your tear ducts, etc… (wear glasses)

9. 9
 ASBESTOS and SMOKERS
Normal lung function:
 The hairs (cilia) in the throat and Trachea lift food, dust,
and phlegm up from the lungs 24/7 for us.
 It takes 24 hours for the hairs to move a piece of food
debris back up to the throat, for us to cough it out or
swallow it.
 Our immune system uses white blood cells to seek out an
destroy the Asbestos fibres, swallowing them and taking
them away from irritated areas of our lungs.

10. 10
The effects of smoking:
 Smoking paralyses the tiny hairs in the throat and down
into the lung structure, eventually smoke kills these
hairs.
 Smokers no longer have an automatic back up system to
remove all the rubbish from building up in their lungs
 Smokers lungs become desensitise to smoke &
particles, the immune system doesn’t send as many
white blood cells to clean up the mess

11. 11
Pathway of Asbestos fibres through the body
Fibre encapsulated at rib
Outer pleural membrane
Inner pleural membrane
Lung
cartilage
Rib
Path of Asbestos fibres

12. 12
 Main diseases are:
Asbestosis Lung cancer
Mesothelioma Pleural Plaques
 Asbestosis
◦ Scarring of lung tissues, caused by fibres reaching the alveoli
◦ This results in permanent scarring, reduced lung capacity and
increased risk of lung cancer
◦ Symptoms include extreme shortness of breath
◦ Lung function lost, is never recovered
◦ Not always fatal but extremely debilitating

13. 13
 Lung Cancer
◦ Cancerous tumours in lung tissue
◦ Symptoms include shortness of breath, coughing (up blood)
◦ Nearly always fatal -28% survival rate in the 1st
year!
 Mesothelioma
◦ Cancerous cells form on the membranes covering the internal
organs. Most commonly on the pleura covering lungs, then
spreading everywhere.
◦ Cancerous growth inhibits normal lung tissue function
◦ Symptoms: shortness of breath, cough, pain in chest
◦ Rapid, Very aggressive mutation and growth of cancer
◦ Always fatal – life expectancy 6 – 24 months from
diagnosis

14. 14
 Pleural Plaques
◦ Fibres lodged in the lung tissue push through and scratch the inside of
the pleural membrane.
◦ This causes inflammation and areas of scarring
◦ Restricts breathing through sharp stabbing pains on inhaling
◦ Non fatal, - but causes a lot of pain and discomfort
◦ Claiming any compensation for this is very hard
 Less common disease linked with asbestos exposure include:
◦ Cancer of larynx
◦ Asbestos warts
◦ Pleural thickening

15. 15
Natural exposure
◦ The Asbestos minerals are created by the intense heat and
pressure of volcanic / tectonic activity.
◦ Volcanoes, Earth quakes, Landslides and Erosion have released
asbestos fibres into the atmosphere since man has been around.
◦ In general our body’s are able to cope with the natural level of
exposure from nature, we have evolved with this.

16. 16
Asbestos is a naturally occurring substance
Everyone is exposed to very small numbers of fibres all the time.
Normal Background levels are 0.000001 – 0.0001 fibres/ml.
That means 1 asbestos fibre or less in every 10 Litres of air
One fibre is smaller than a 50th
of the thickness an eyelash
Fibres are so small and so light, that they can remain suspended and
free floating in the air for 10 hours or more
Opening a window after disturbing asbestos,
The fibres will be continually agitated
to remain in the air.

17. 17
Asbestos Levels
Natural levels
This equates to approximately one asbestos
fibre or less in every 10 Litres of air
The equivalent of less than one fibre in a bucket!
Friable: very easy to become and stay airborne
Un-natural levels
The Control limit for asbestos exposure is 0.1
asbestos fibres per cubic centimetre of air (0.1
f/cm3). Control of Asbestos Regulations 2012
The equivalent of 1000 asbestos fibres in a bucket…

18. 18
Unnatural, avoidable
exposure People can only be exposed to asbestos if:
◦ The Asbestos material is disturbed or damaged
◦ Asbestos fibres are made airborne
◦ You breathe in the Asbestos fibres
◦ You ingest the Asbestos fibres
 YOUR risk of ill health or death is determined by:
◦ The Concentration of fibres in the air
◦ The Duration of an exposure
◦ The Number of exposures you have
◦ The Level of respiratory protection you wear

19. 19
 Health and Safety at Work Act 1974 (HSWA)
◦ Employers’ duties:
• Have a written Health and Safety policy
• Maintain safe workplace - with safe access and egress
• Provide and maintain machinery and equipment, Safe Systems
of Work, and PPE, to minimise risks to health
• Ensure Safe use, handling storage and transportation of
substances
• Provide: information, instruction, training and
supervision

20. 20
 Health and Safety at Work Act 1974
Employees’ Duties:
Take reasonable care for the health and safety of
themselves and others who may be affected by their
actions or omissions.
Co-operate with employer to enable them to comply with
their statutory requirements
Do not misuse anything provided under a statutory
requirement in the interests of health and safety at work

21. 21
 Management of Health and Safety at Work Regulations
1999
◦ Employers must:
• Assess Hazards and Risks to employees and others affected by
their working
• Record the findings
• Ensure employees are told of the risks involved in their work and the
precautions required to control the risks
• Review assessments regularly to ensure they remain relevant
◦ Employees must:
• Follow training, & instructions, use precautions & PPE protective
equipment provided.

22. 22
 Brings together 3 previous sets of legislation:
 Prohibition and the Control of asbestos at work and licensed asbestos
Working

Bans the use of White, Brown and Blue asbestos + the second hand
use of asbestos products (e.g. asbestos cement sheets)
 To increase employer and employee awareness to the presence of
asbestos + the risks from work with asbestos
 Requires duty holders to manage asbestos properly in non domestic
properties:
◦ Asbestos management plan
◦ Asbestos register for building

23. 23
 Regulation 10 requires employers to provide:
 Information, instruction and training to all employees likely to be
exposed to asbestos, Not just asbestos removal workers
 3 levels of training:
 Asbestos awareness – the course you are undertaking now
 Non licensed asbestos removal
 Licensed asbestos removal
 Asbestos Awareness training is listed in the HSE Approved Code of
Practice.

24. 24
 Introduces stringent standards of worker protection:
Where work is carried out which may disturb asbestos employers are
required to prevent exposure and spread of asbestos
Worker exposure must not exceed the Control Limit of 0.1 fibres per
cm3
RPE must be worn, but the work must still be arranged to prevent
the release of fibres.
 See Approved Codes of Practice and HSE Guidance:
◦ Tell us how to put the law into practice
◦ Management of asbestos in non domestic premises – L127 *
◦ Work with materials containing asbestos – L143 *
◦ Asbestos Essentials – HSG210 *
◦ Asbestos Kills: Protect Yourself – INDG419*
* All available on the HSE
UPDATED Control of Asbestos Regulations 2012

25. 25
Employees likely to be exposed to asbestos
include:
• General maintenance staff
• Electricians
• Plumbers
• Gas Fitters
• Lift engineers
• Painters and Decorators
• Joiners
• Plasterers
• Shop fitters
• Architects, building surveyors
• Demolition Workers
• Construction Workers
• Roofers
• Heating and Ventilation
Engineers
• Telecommunications
Engineers
• Fire and Burglar Alarm
Installers
• Computer Installers

26. 26
 Insulating Board
◦ Structural fire protection – on steel work, behind radiators
and boilers, inside doors
◦ Also used for acoustic insulation, lining, ceiling tiles,
general building board (resists moisture ingress)
◦ Up to 85% asbestos, semi compressed so very likely to give
◦ off fibres if broken, drilled or sawn
◦ Only to be removed by a licensed contractor

27. 27
 Lagging
◦ Thermal insulation for pipes/boilers
◦ Common lagging up to 15% asbestos
◦ Quilts/blankets up to 100% asbestos
◦ Often has protective foil, paper or wire covering
◦ Only to be removed by a licensed contractor

28. 28
 Asbestos Cement Products
◦ Roof sheets, flue pipes, guttering, down comers, roof tiles,
permanent shuttering
◦ Only 10-15% asbestos (usually white asbestos)
◦ Fibres are tightly bound with Portland cement so unlikely to give
off fibres unless badly damaged
◦ Sheets should be removed whole and kept wet

29. 29
 Asbestos Containing Plastics
◦ Floor tiles, stair nosing’s, sink pads, toilet seats and cisterns
◦ Can also find asbestos in the adhesive used with floor tiles
◦ Up to 25% asbestos
◦ Fibre release unlikely under normal use

30. 30
 Asbestos Rope and Cloth
◦ Fire blankets, gaskets, cable insulation, flash guards
◦ Up to 100% asbestos
◦ Release of fibres depends on material
◦ All 3 types of asbestos used pre 1970
◦ only Chrysotile (White) since 1970 to 1999

31. 31

32. 32
 Sprayed Coatings
◦ Used as fire protection and acoustic control for structural
steelwork.
◦ Up to 85% asbestos
◦ Fibre is very friable easy to release if disturbed. It Can also
degrade as it ages.

33. 33
 Textured Coatings
◦ Commonly referred to as ‘Artex’.
◦ Low percentage of asbestos
◦ Fibres may be released if the material is drilled or sanded.

34. 34
 Asbestos Paper Products
◦ Backing on fibre boards, floor tiles
◦ Covering on electrical equipment insulation, pipe insulation
◦ Damp proof course
 External Building Panels
◦ Asbestos boarding can be used
for external cladding

35. 35
Lift brakes Asbestos gasket
Asbestos water tanks
Asbestos Paper Lining

36. 36
HVAC/ PLANTROOMS/ BMS
Old dust on pipes could be settled Asbestos fibres!!!

37. 37
HVAC/ PLANTROOMS/ BMS
Vibration through large systems can keep fibres in the air permanently

38. 38
 Personal Protective Equipment
◦ Asbestos removal operatives wear:
• Disposable overalls (Type 5 – Particle tight)
• Boots without laces, or boot covers
• Respiratory Protection
 3 types of Respiratory Protective Equipment
• Disposable respirators – with FFP3 filter
• Half Face Masks
• Full Face Masks

39. 39
PPE and RPE
 Sealed Fitting of RPE to face
Face masks need to fit snug to skin to seal
• Facial hair impacts the seal (Vaseline)
• Significant Facial scars impact the seal
• Replace old masks/ Disposable masks regularly
• Replace Damaged masks
• Replace filters regularly
• Any old mask, tea cloth, or hanky will not do!

40. 40

41. 41
 Major refurbishment works must not start without a type 3
(fully intrusive) survey to determine the presence of asbestos
 Any asbestos in the work area should be removed/ protected
or avoid contact/ impacting
 Premises should have Asbestos Registers – look at them or ask the
foreman where the asbestos is before starting work
 If you are working somewhere where asbestos may be
discovered e.g. - pulling down ceilings, working in loft spaces,
under floors or demolishing walls – Hidden asbestos
Wear disposable overalls and a FFP3 mask and eye
protection as a precaution.

42. 42
Example ASBESTOS REGISTER
Where Product
How
much?
Surface
coating
Condition
How easy
is
access?
Asbestos type Comment
Material
score
Priority
score
Outside
Roof to garage
Asbestos
cement
Whole
roof None
Fairly
good Difficult White? No sample 1 1
Down-pipes to
garage
Asbestos
cement
4 x 4
metres None
One
broken Medium
Don’t know
presumed No sample 5 6.2
Inside
Plant room rear
wall
Board
panels
43 sq
metres
Emulsion
paint Good Easy Presumed No sample 1 1
Plant room to
old boiler
Pipe -
insulation
15
metres
Gloss
paint Cracked Medium Brown
Bit that fell
off
analysed
ref G02 8 12
B Site B8 Store
Shed 2m Sq
Emulsion
paint Good Difficult Chrysotile Ref 2 (D14) 1 1
Briefing Facility
001
board in
closet 1m sq
Emulsion
paint Cracked Difficult Chrysotile Ref 2 (D14) 2 3
Bldg C60
Depot
Transport
Board in
wall 4m sq
Gloss
paint Broken Easy
Amosite
(Brown) Ref 7 (PFS) 12 12
C24 Depot
Workshop
Board on
wall 6m sq
Emulsion
paint Cracked Easy
Amosite
(Brown) WG 7B 8 12

43. 43
 If Your work places you near Asbestos:
 Wear appropriate PPE
 Do a Risk Assessment, decide the best way forward
 Take pictures before you do anything
 Consider other precautions/ barriers/ shielding
 If you can do your work without impacting the
asbestos, keep aware for possible hidden risks
 Double bag any waste/ old materials, e.g. old boilers
 Take pictures of the job when you are finished
 Always Mail/ send the pictures to your manager
Working near known Asbestos

44. 44
Aids to help combat Asbestos exposure
Wet down suspected items,
an atomiser spray will pull all forms of fibre to the ground with the water vapour
PVA glue will seal all forms of fibre/dust under the surface of the glue.
(Don’t dry brush dust off, wet down with spray and paint glue over this)
Paint/ Varnish, will seal all forms of fibre/dust under the surface of the
Paint/ varnish. (don’t dry brush, apply liberally over)

45. 45
Myths
 Myth 1: Cross head screws used to secure an item, means that there is
little likelihood of Asbestos being present.
 Truth 1: There is no way of knowing if Asbestos is present by the type of
screw head used. Who knows if these were replaced and the Asbestos left
in place too?
 Myth 2: If you break it up out in the open air you are safer.
 Truth 2: It is not safe, wind direction changes, and you would have just
created secondary exposure to others down wind of you!
 Myth 3: If I wet down my clothes and wash them, the clothes
will be fine to use again. (moderate to large exposure)
 Truth 3: Not True, the asbestos fibres are so fine, the could nestle in the
weave of your clothing and resurface when dry.
 Myth 4:
 Truth 4:

46. 46
 If you discover or disturb asbestos
◦ STOP work immediately
◦ Prevent access to the area
◦ Report your manager/ supervisor.
◦ Minimise spread of contamination to other areas
◦ Keep exposures as low as you can
◦ Clean up of contamination – specialist works
◦ Change and Double Bag up any clothes/ overalls where
Asbestos has been released
◦ READ HSE Asbestos Essentials Sheet EM1 gives directions

47. 47
Secondary exposure
 Do your kids cuddle you, as you come in from work?
 Do you go the café for food during the day?
 Do you slap off the dust to your clothes /overalls out side
the customers house?
 Do you dump the work clothes by the washing machine
to be washed?
 Do you walk through the customers house as you are?

48. 48
Working around known
ASBESTOS Never undertake work which will impact stable ASBESTOS
 If you are unable to work without coming into contact with ASBESTOS,
PPE + redo your Risk Assessment first!
 If you have a Risk of Breaking, Brushing, Scratching, Crushing, Drilling
ASBESTOS, then you should Reconsider your PPE requirements
 Then decide if it is possible to protect/ cover/ seal the ASBESTOS product
before ANY works begins
 If it is not possible for you to undertake your work without Cutting/
Drilling/ Breaking/ Scraping the ASBESTOS – STOP and consult your line
manager.
 Never impact stable ASBESTOS
products

49. 49
Procedure if exposed to
Asbestos Stop Work
 Don’t attempt to sweep/ clean the area
 Seal off the Area
 Remove overalls/ clothing/ boots
 Double Bag and Seal all clothing+ boots from others
 Report it immediately to your manager
 Change into clean overalls
 Wait for Manager to attend site/ or give advice
 Report your exposure to your GP (to record event)
 Clean up specialist to site/ removal team
 4 stage Testing performed at site for all clear
 RIDDOR reporting process
 Revisit to S&B Risk assessments/ training and reporting

50. 50
HEALTH SURVIELLANCE
 Your GP will record the event details
 For a major exposure:
X-ray Scans for lungs and airway, - long term
Lung capacity test (Spirometry) – short term

51. 51
Asbestos Signage
Asbestos suspect Items may not contain these signs!

52. 52
Other substances irritating to airways
MDF is a wood composite material, primarily
softwood, bonded with a synthetic resin, which
is usually formaldehyde-based.
Although it has been commercially available
since the 1960s, its use has become
significant only in the last 2 decades.
MDF is currently being reviewed for it Carcinogenic
cancer producing properties.
The wood content or the resins/ bonding agents have a
potential to cause work induced hyper sensitivity of the
airways, issues such as Emphysema and Asthma.

53. 53
Cement and Plaster dust
 Cement and plaster are widely used in construction.
Anyone who uses cement (or anything containing
cement, such as mortar, plaster and concrete) or is
responsible for managing its use should be aware that it presents a
hazard to health.
This can cause Silicosis, fluid on the lungs, Pneumonia and Cancer.
High levels of dust can be produced when cement /plaster
is handled, for example when emptying or disposing of bags.
In the short term, exposure to high levels of cement dust
irritates the nose and throat.

54. 54
and Safety Legislation
Control of Asbestos Regulations 2012
Uses of Asbestos
Where Asbestos can be found in Buildings
Who is at risk and Avoiding risk
Controlling Secondary exposure
Take pictures of the scene – before and after
PPE & RPE
Emergency Procedures

55. 55