Bf2 roadshows 2017 slideshare version

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Controlling exposures to prevent

occupational lung disease in

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Mike SlaterDiamond Environmental LtdBOHS Past President 2014/15

breathe freely II May 2017 SHOW.ppsx




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breathe freely II May 2017 SHOW.ppsx




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The main health hazard with many welding operations is the welding fume which can cause serious health effectsToo often it isn’t adequately controlled




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Welding Fume

At least 190,000 workers exposed to welding fume in Great Britain




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Welding Fume

152 deaths from cancer every year




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Breathe freely Manufacturing launch25 May 2017EEF HQ London




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Al Co Cr CrVI

Cu F Fe Mg Mn Ni Zn

Low alloy steel

High alloy steel

Aluminium

Cast iron

Nickel based

Copper based

Based on ISO 15011 Health and safety in welding and allied processes




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Metal WEL (mg/m3)

Chromium II and III 0.5

Chromium VI 0.05 Carc, sen,

Nickel (soluble) 0.1 Sk, Carc (nickel oxides and sulphides)Nickel (insoluble) 0.5

Manganese 0.5




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SCOEL Recommendation for Manganese and Manganese compounds

0.20 mg/m3 (inhalable fraction)0.05 mg/m3 (respirable fraction)




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0.20 mg/m3 (inhalable fraction)0.05 mg/m3 (respirable fraction)

Current limit is 0.50 mg/m3 (inhalable fraction)

SCOEL Recommendation for Manganese and Manganese compounds




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www.bohs.org/ohservices-directory




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Controlling Welding Fume




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Eliminate

Process modification

Local extraction

Working practices

RPE

Here MMA (“stick”) welding is being carried out –it produces more fume than MIG which could be an alternative approach




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Eliminate


Local extraction

Working practices

RPE




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This is probably the most common type of control measure used for welding – a moveable arm or “elephant’s trunk”. They can be effective at controlling welding fumes in some situations –but they are not always suitable




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Extracted welding benches are usually the best option for small pieces




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On-torch extraction – an option for MIG welding

MIG welding with no extraction

MIG welding with on-torch extraction




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Flexible arms can be an appropriate control

Here it is not controlling the fume

It’s essential the arm is positioned carefully




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Eliminate


Local extraction

Working practices

RPE




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Working practices to minimise fume exposure can include

• Introduce a dedicated area for welding.• Control access to working area.• Minimise the work carried out in enclosed or

confined spaces.• Implement a maintenance and test regime for LEV

systems.




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Eliminate


Local extraction

Working practices

RPE




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Respiratory protection should always be the last resort, but it will be the most appropriate control for some types of work particularly very large fabrications where the use of local extraction is impracticable




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Powered devices which are built into the welding visor (like the one in the picture) are likely to be most effective.




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What can YOU do?




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What can you do?

Use breathefreely fact

sheets, case studies etc

to help identify issues

and solutions




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What can you do?

Get competent help

where needed

http://www.bohs.org/ohservices-directory




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What can you do?

Become an official

campaign supporter




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What can you do?

Help us develop good

practice examples




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What can you do?

Spread the word




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Roadshows

Join us and be part of the solution

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Bf2 roadshows 2017 slideshare version

Health & Medicine

Transcript of Bf2 roadshows 2017 slideshare version