bf2 welding introduction slideshare
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding is one of the most common activities carried out in industry
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
HSE estimate that there are at least 190,000 welders in the UK
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Health Hazards
There are a number of health hazards associated with welding
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Health Hazards
There are a number of health hazards associated with welding in particular:
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Health Hazards
There are a number of health hazards associated with welding in particular:
• Fume
• Gases
• UV radiation
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
The main health hazard with many welding operations is the welding fume
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding fume is made up of fine particles of metal oxides
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
The composition depends on type of metal being welded
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Health Concerns
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Metal Fume Fever
Pneumonia
Asthma, COPD
Metal Dusts
Lung Cancers
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding Fume
152 deaths from cancer every year
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding Fume
• Pneumonia
• Metal fume fever
• COPD
• Asthma
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding Fume
Nickel and Chromium (in stainless steel)
–Cancer
–Asthma
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Welding Fume
–Neurological effects
Manganese (in many welding rods)
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Many welders are exposed unnecessarily to welding fume
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Control measures are available – but it’s important to make sure the right controls are used
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Controlling Welding Fume
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
This is probably the most common type of control measure used for welding – a moveable arm or “elephant’s trunk”
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
They can be effective at controlling welding fumes – but they are not always suitable
Moveable arms require careful positioning so that the fume is captured effectively
This is betterBut can we rely on workers to move the arm as the work progresses?
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
With MIG welding on-torch extraction can be used
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
If properly set up this can be very effective as it captures the fume at source
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
With smaller components, carrying out the work on an extraction work bench will often be the most effective way of controlling the fume
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
The fume is drawn away from the welder and the extraction does not need to be moved
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Respiratory protection should always be the last resort, but may be needed for some types of work
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Controlling exposures to prevent
occupational lung disease in
MANUFACTURING
Powered devices which are built into the welding visor are likely to be most effective
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