clrtp particulate matter expert group welcome to defra and london
TRANSCRIPT
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CLRTP particulate matter expert group
Welcome to Defra and London
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Review of first meeting
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CLRTP particulate matter expert group
Objective
Improved technical understanding of the abatement options and the technical possibilities to reduce concentrations of particulate matter under the Convention
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Scope The work of the group is scientific
and technical The conclusions and
recommendations will be important for helping policy makers with future decisions on emissions controls
Chaired by UK and Germany
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First meetingMay 2005, Berlin Main discussion items:
sources contributing to the transboundary transport of particulate matter (PM);
assessing future changes in PM emissions and concentrations, as related to existing protocols to the Convention and other instruments;
technical and non-technical measures available for further reduction of PM levels; and
adequate strategy to address PM under the Convention.
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Key points, conclusions and recommendations
Key points: noted the strengthened evidence showing
links between relative risk of mortality and levels of PM2.5, while noting PM10 is not innocuous;
no evidence for a threshold of effects at the population level; and
recognized that even in 2010 there will be significant mortality associated with PM levels and there was a need for further policy action.
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Key points, conclusions and recommendations models show transboundary character of not only
secondary PM2.5 but also primary PM2.5 and to a lesser extent PM10.
potential to reduce further both primary and secondary PM. Abatement measures should address both. While the focus should be to reduce PM2.5, the coarse fraction should not be ignored;
potential for further emissions reductions but there is a big difference in this potential between EU countries and EECCA countries. Specific strategies may need to be developed for EECCA countries;
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Key points, conclusions and recommendations even with current legislation, in 2020
there still will be potential for applying readily available low cost measures to reduce emissions; other measures though technically feasible could only be applied at high cost; and
in addition to technical measures there is potential to explore the use of non-technical measures.
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Work plan 2006Item a Assess the degree of control of
pollutants contributing to the formation of PM already provided by existing protocols to the Convention and submit a draft report to the Working Group on Strategies and Review at its thirty-eighth session in 2006; (United Kingdom/Co-Chair and Netherlands)
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Work plan 2006Item b Review current work under the Convention
on PM, taking also into account the latest results of the forthcoming Thematic Strategy on Air Pollution of the European Community and similar strategies of other Parties and submit a draft report to the Working Group on Strategies and Review at its thirty-eighth session in 2006; (United Kingdom/Co-Chair, European Commission, United States and Netherlands)
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Work plan 2006Item c Using, inter alia, the results of the EMEP
model, prepare supporting information for the third meeting of Expert Group for reviewing the characteristics of PM as a transboundary pollutant, e.g. contribution to ambient concentrations from national, regional and hemispheric sources, and consider the implications of choosing different particle size fractions; (Co-Chairs to liaise with MSC-W)
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Work plan 2006Item d (revised) Consider, inter alia, the work of CIAM, MSC-
W and CCC on scientific evidence and technical requirements to reduce exposure to primary and secondary PM. Develop, where possible, further technical and non-technical measures to assist parties to reduce PM emissions and exposure and to prepare supporting information for the third meeting of Expert Group (Germany/Co-Chair to liaise with CIAM)
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Input and exchanges with other groups/organisations Task b
EU Commission Tasks b & d
TF integrated assessment modelling/CIAM Task c
TF measurements and modelling Tasks c & d
Meteorological Synthesising Centre West TF emission inventories & projections
Task d Chemical Coordinating Centre
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Future meetings, 2005 & 2006 Second meeting
Workshop – 7 & 8 November 2005, London
Third meeting Dessau – early spring 2006
Report to WGSR, September 2006 Fourth meeting
London, late 2006
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Scope of 2nd meeting Workshop – plenty of time for discussion Consider key questions Start to think about possible options for
incorporating control of PM emissions and exposure into CLRTAP
Lay the foundations for report to WGSR in September 2006
No formal co-chairs’ report
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KEY QUESTIONS
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Transboundary PM characterisation
1. To what extent is PM a transboundary pollutant?
2. Is PM a hemispheric pollutant?
3. Which components of PM have a significant transboundary element?
4. What are the important emissions sources of transboundary PM?
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Primary PM emissions sources5. Are primary PM emissions important in
transboundary pollution?6. Are PM emissions inventories robust?7. What are the important uncertainties in PM
emissions inventories?8. How might PM emissions inventories be
improved?9. Are measurements and modelling robust
enough to apportion imported and exported PM?
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Mitigation of primary PM emissions10. What are the key sources of primary PM
emissions?11. What abatement measures are currently used
to mitigate primary emissions of ambient PM?12. What measures are most suitable for EECCA
countries?13. What abatement measures are available to
further reduce ambient concentrations of ambient PM in (a) EECCA and (b) other countries?
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Evening meal, 7 November
Browns Restaurant, Butlers Wharf
10 minutes walk from Tower Hill Underground Station
Meet hotel lobby, 18.45
Guests of Defra
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Conclusions PM has an important transboundary element. The
extent depends on the region/country. Secondary PM2.5 and primary PM2.5 are important.
PM10 to a lesser extent. There is potential to reduce further both primary
and secondary PM. Abatement measures should address both. While the focus should be to reduce PM2.5, the coarse fraction should not be ignored;
There is a big difference in this potential between EU countries and EECCA countries. Specific strategies may need to be developed for EECCA countries;
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Conclusions There is enough evidence (based on
emissions inventories and modelling) to identify key sources - which ones are important depends on the region EU
Road transport and shipping Residential and smaller combustion plant Industrial processes and waste Agriculture
EECCA All sectors, particularly production and non-
industrial processes
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Conclusions There is room for improvement
beyond CLE for key emissions sectors
Further reductions of primary PM emissions are a cost-effective means for improving ambient PM2.5
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Conclusions Modelling and emissions inventories are
uncertain and could be improved, but they’re robust enough to identify key sources
Encourage all countries, particularly EECCA, to develop, improve and report primary PM emissions inventories requires capacity building
Encourage Parties to support improvement and harmonization of emissions factors and activity data; this may be through the work of TFEIP and its inventory reviews
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Conclusions The options for controlling PM
under the Convention will influence the level of certainty required for inventories and modelling Inventories and modelling should be
fit for purpose, not necessarily technically ideal
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Next steps For next meeting (Spring 2006)
Draft report on tasks a and b by February 2006, for discussion
Working groups to draft dossiers on key sectors (focus on primary PM)
Quality and completeness of emissions data Contribution to ambient concentrations and potential exposure Abatement measures
Co-chairs to draft Summary of conclusions to date and outline structure for
report Technical input for policy instruments
IIASA to provide summary of available cost information