The British approach to the management of potential risks    from nanomaterials John Cherrie
Summary… <ul><li>Disclaimers </li></ul><ul><li>The UK government position </li></ul><ul><li>HSE guidance </li></ul><ul><li...
UK Government strategy… <ul><li>The UK’s economy and consumers will benefit from the development of nanotechnologies throu...
UK government policy… <ul><li>Better understanding of the risks associated with the use of, and exposure to, nanomaterials...
http://www.hse.gov.uk/nanotechnology/
Precautionary approach… <ul><li>Where nanomaterials have an uncertain or not clearly defined toxicology and unless, or unt...
The Principles of Good Control Practice… <ul><li>Design and operate processes to minimise emission </li></ul><ul><li>Take ...
Carbon nonotubes (CNTs)… <ul><li>Control exposure at source  </li></ul><ul><ul><li>ducted fume cupboard with a HEPA filter...
The BSI Guide… http://www.bsigroup.com/en/sectorsandservices/Forms/PD-6699-2/Download-PD6699-2-2007/
Benchmark exposure levels <ul><li>Fibrous nanomaterials </li></ul><ul><ul><li>0.01 fibres/ml, as assessed by scanning or t...
BSI document criticised by HSE advisors <ul><li>HSE  W orking group on  A ction  T o control  CH emicals (WATCH) </li></ul...
The future in Britain… <ul><li>Britain is committed to the safe use of nanomaterials </li></ul><ul><li>HSE will engage wit...
My opinions… <ul><li>Reference values for nanomaterials are helpful </li></ul><ul><ul><li>They should be designed to encou...
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The British approach to managing the risks from nanomaterials

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My presentation at an International workshop
Nano Reference Values as provisional substitute for OELs and DNELs for nanoparticles. Details at... http://www.ivam.uva.nl/index.php?id=nrviw

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  • My views not the “official” British position. Safenano site has 213 entries pages with “exposure limits” TU campaign in Britain to reduce limits for dusts in general. IOM has also publically stated that in our opinion the current limits in Britain are too high. However, there is little appetite in Britain to unilaterally introduce new OELs the HSE preferring to work within a European context.
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  • The HSE maintains a
  • Definition needs to take account of aggregation
  • The British approach to managing the risks from nanomaterials

    1. 1. The British approach to the management of potential risks from nanomaterials John Cherrie
    2. 2. Summary… <ul><li>Disclaimers </li></ul><ul><li>The UK government position </li></ul><ul><li>HSE guidance </li></ul><ul><li>The British Standards Institute (BSI) document </li></ul><ul><li>The future and my opinions </li></ul>www.SafeNano.org/
    3. 3. UK Government strategy… <ul><li>The UK’s economy and consumers will benefit from the development of nanotechnologies through Government’s support of innovation and promotion of the use of these emerging and enabling technologies in a safe, responsible and sustainable way reflecting the needs of the public, industry and academia. </li></ul>
    4. 4. UK government policy… <ul><li>Better understanding of the risks associated with the use of, and exposure to, nanomaterials, and enough people with the right skills to assess them. </li></ul><ul><li>Better informed policies and regulations relating to nanomaterials and nanotechnologies. </li></ul><ul><li>Well-informed public and stakeholders and a leading position on nanotechnologies for the UK on the world stage. </li></ul><ul><li>The Prime Minister …does not want nanotechnologies to be viewed in the same way as Genetically Modified Organisms (GMOs), but in a much more positive light such as the developments in Stem Cell research. </li></ul>
    5. 5. http://www.hse.gov.uk/nanotechnology/
    6. 6. Precautionary approach… <ul><li>Where nanomaterials have an uncertain or not clearly defined toxicology and unless, or until, sound evidence is available on the hazards from inhalation, ingestion, or absorption a precautionary approach should be taken to the risk management . </li></ul><ul><li>“ Where there are threats of serious or irreversible environmental damage, lack of full scientific certainty shall not be used as a reason for postponing cost effective measures to prevent environmental degradation. ” 1992 Rio Declaration </li></ul>
    7. 7. The Principles of Good Control Practice… <ul><li>Design and operate processes to minimise emission </li></ul><ul><li>Take into account all relevant routes of exposure </li></ul><ul><li>Control exposure by measures that are proportionate to the health risk </li></ul><ul><li>Choose the most effective and reliable control options </li></ul><ul><li>Use PPE when adequate control of exposure cannot be achieved by other means </li></ul><ul><li>Check and review regularly control measures </li></ul><ul><li>Inform and train all employees </li></ul><ul><li>Ensure that control measures do not increase the overall risk to health and safety </li></ul>http://www.hse.gov.uk/coshh/detail/goodpractice.htm
    8. 8. Carbon nonotubes (CNTs)… <ul><li>Control exposure at source </li></ul><ul><ul><li>ducted fume cupboard with a HEPA filter </li></ul></ul><ul><ul><li>other suitable effective local exhaust ventilation with a HEPA filter </li></ul></ul><ul><li>Reduce the number of employees handling CNTs </li></ul><ul><li>If possible, keep the material wet </li></ul><ul><li>Provide respiratory protective equipment for emergencies </li></ul><ul><ul><li>assigned protection factor (APF) of 40 or higher </li></ul></ul><ul><li>Provide personal protective equipment, e.g. gloves </li></ul>http://www.hse.gov.uk/pubns/web38.pdf
    9. 9. The BSI Guide… http://www.bsigroup.com/en/sectorsandservices/Forms/PD-6699-2/Download-PD6699-2-2007/
    10. 10. Benchmark exposure levels <ul><li>Fibrous nanomaterials </li></ul><ul><ul><li>0.01 fibres/ml, as assessed by scanning or transmission electron microscopy </li></ul></ul><ul><li>CMAR 1 nanomaterials </li></ul><ul><ul><li>0.1 × material OEL (mg/m 3 ) </li></ul></ul><ul><li>Insoluble nanomaterials </li></ul><ul><ul><ul><li>0.066 × material OEL (mg/m 3 ) or </li></ul></ul></ul><ul><ul><ul><li>20 000 particles/ml </li></ul></ul></ul><ul><li>Soluble nanomaterials </li></ul><ul><ul><li>0.5 × OEL (mg/m 3 ) </li></ul></ul><ul><li>carcinogenetic, mutagenic, asthmagenic or a reproductive </li></ul>
    11. 11. BSI document criticised by HSE advisors <ul><li>HSE W orking group on A ction T o control CH emicals (WATCH) </li></ul><ul><li>WATCH opposed the presence of ‘benchmark exposure levels’ in the document because their meaning and regulatory significance could be readily misinterpreted </li></ul><ul><li>WATCH considered that exposure measurements should be gathered: </li></ul><ul><ul><li>To considering different exposure control options and their effectiveness </li></ul></ul><ul><ul><li>To be collected and stored in case they could be useful in the future alongside the monitoring of occupational health </li></ul></ul>
    12. 12. The future in Britain… <ul><li>Britain is committed to the safe use of nanomaterials </li></ul><ul><li>HSE will engage with any discussions in the EU about limit values </li></ul><ul><li>As far as I am aware there are no intentions to introduce limit values for nanomaterials in Britain </li></ul><ul><li>Main focus is on the Principles of Good Control Practice </li></ul>
    13. 13. My opinions… <ul><li>Reference values for nanomaterials are helpful </li></ul><ul><ul><li>They should be designed to encourage good control practice </li></ul></ul><ul><li>There should be separate reference values for nanomaterials and larger materials of the same composition </li></ul><ul><ul><li>Practical definition(s) of nanomaterials needed </li></ul></ul><ul><li>There needs to be consistency between values for process-generated and engineered nanomaterials </li></ul><ul><li>There should be consistency between values for nanomaterials and larger dusts of the same composition </li></ul>

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