Emission calculation

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Emission calculation

• TAIEX Workshop on the EPRTR
• Skopje,15 april 2008
• Michel Amand
• Belgian Head of delegation PRTR
• Chair of the WG UNECE Protocol on PRTRs

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Data collection

• Art.5.1 gt operator shall report its releases and
  off-site transfers of waste, indicating if the
  information is based on
  -
  measurement (code M)
  - calculation
  (code C)
  - estimation (code E)
• Art.5.1 gt In the case of data indicated as being
  based on measurement or calculation the
  analytical method and/or the method of
  calculation shall be reported
• Art.5.4 gt operator shall use the best available
  information in accordance with internationally
  approved methodologies

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Data collection

• Art.5.4 gt Best available information may include
  
• Monitoring data
• Emission factors
• Mass balance equations
• indirect monitoring
• engineering judgement
• other methods
• but operator shall assure quality of reported
  information (Art.9.1)
• MS shall assess that quality (Art.9.2)

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Data collection - codes M,C,E

• Class M Release data are based on measurements
  (M). Additional calculations are needed to
  convert the results of measurements into annual
  release data. For these calculations the results
  of flow determinations are needed. M should
  also be used when the annual releases are
  determined based on the results of short term and
  spot measurements. M is used when the releases
  of a facility are derived from direct monitoring
  results for specific processes at the facility,
  based on actual continuous or discontinuous
  measurements of pollutant concentrations for a
  given release route.

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Data collection - codes M,C,E

• Class C Release data are based on calculations
  (C). C is used when the releases are based on
  calculations using activity data (fuel used,
  production rate, etc.) and emission factors or
  mass balances. In some cases more complicated
  calculation methods can be applied, using
  variables like temperature, global radiance etc.

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Data collection - codes M,C,E

• Class E Release data are based on
  non-standardised estimations (E). E is used
  when the releases are determined by best
  assumptions or expert guesses that are not based
  on publicly available references or in case of
  absence of recognised emission estimation
  methodologies or good practice guidelines.
• Definitions taken from Guidance document (page 33)

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Data collection

• Operators should prepare their data collection in
  accordance with internationally approved
  methodologies where such methodologies are
  available.
• The following methodologies are considered as
  internationally approved
• CEN and ISO standards as measurement
  methodologies
• the Guidelines for the monitoring and reporting
  of greenhouse gas emissions under the Emission
  Trading Scheme, the IPCC Guidelines and the
  UN-ECE/EMEP Atmospheric Emission Inventory
  Guidebook as calculation methodologies.

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Data collection

• The operator may use "equivalent" methodologies
  other than internationally approved
  methodologies, even when available, if one or
  more of the following conditions are fulfilled
• 1. The operator uses one or more measurement,
  calculation or estimation methodologies already
  prescribed by the competent authority in a
  licence or an operating permit for that facility
  (method name to be reported PER)
• 2. A national or regional binding measurement,
  calculation or estimation methodology is
  prescribed by legal act for the pollutant and
  facility concerned (method name to be reported
  NRB).
• 3. The operator has shown that the
  alternative measurement methodology used is
  equivalent to existing CEN/ISO measurement
  standards (method name to be reported ALT).

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Data collection

• 4. The operator uses an equivalent methodology
  and demonstrated its performance equivalence by
  means of Certified Reference Materials (CRMs)
  according to ISO 17025 and ISO Guide 33 together
  with an acceptance by the competent authority
  (method name to be reported CRM).
• 5. The methodology is a mass balance method (e.g.
  the calculation of NMVOC releases into air as
  difference from process input data and
  incorporation into product) and is accepted by
  the competent authority (method name to be
  reported MAB).

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Data collection

• 6. The methodology is a European-wide sector
  specific calculation method, developed by
  industry experts, which has been delivered to the
  European Commission (env-eper_at_ec.europa.eu/env-prt
  r_at_ec.europa.eu), to the European Environment
  Agency (/prtr_at_eea.eu.int) and the relevant
  international organisations (e.g. IPCC
  UN-ECE/EMEP ). The methodology could be used
  unless it is rejected by the international
  organisation (method name to be reported SSC).
• Other methodologies shall only be used if
  internationally approved or equivalent
  methodologies are not available (method name to
  be reported OTH).
• More information in the Guidance document page 35

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Data reporting
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Emission calculation

• No measurement available ?
• For waste use factors agreed on international,
  national or sectoral level which, for example,
  indicate the waste amount in relation to the
  material produced or the input of raw material.
• For water mass balance or rough estimation , no
  emission factor approved internationally

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Air Emission calculation

• Internationally approved calculation methods are
  described in the following information sources
• Guidelines for the monitoring and reporting of
  greenhouse gas emissions under the Emission
  Trading Scheme (established by Commission method
  name to be reported ETS).
• The IPCC Guidelines provide methodologies for
  estimating anthropogenic emissions by sources
  (method name to be reported IPCC). It provides
  a compendium of information on methods for
  estimation of emissions for a broader range of
  greenhouse gases and a complete list of source
  types for each. It summarises a range of possible
  methods for many source types. It also provides
  summaries of the scientific basis for the
  inventory methods recommended and gives extensive
  references to the technical literature.

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Air Emission calculation

• The UN-ECE/EMEP EMEP/CORINAIR Emission Inventory
  Guidebook 2005 provides a comprehensive guide
  to atmospheric emissions inventory methodology
  (method name to be reported UNECE/EMEP). Its
  intention is to support reporting under the
  UN-ECE Convention on Long-Range Transboundary Air
  Pollution and the EU directive on national
  emission ceilings. The Guidebook is a joint
  activity of UN-ECE/EMEP and the European
  Environment agency. The guidebook contains
  chapters for specific source sectors, where all
  available emission factors and emission
  calculation methods are collected. A Task Force
  maintains a working web site, where drafts for
  new chapters and modifications of existing ones
  are available

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Emission calculation

• The website of the OECD Resource Centre for PRTR
  Release Estimation Techniques (RETs)1 provides
  a clearing-house of guidance manuals/documents of
  release estimation techniques for the principal
  pollutant release and transfer registries
  developed by OECD member countries. The manuals
  and documents include descriptive information on
  the sources of pollution and the pollutants that
  are released, as well as information on emission
  factors, mass balance methods, engineering
  calculations, and monitoring information. 1
  http//www.oecd.org/env/prtr/rc
• For additional information on release
  determination methods see Guidance document ,
  chapter 1.1.11 pages 38 43,

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Conclusions

• Operator is responsible for data collection and
  quality assurance
• MS responsible for quality assesment
• EPRTR Regulation Art.5 9 contains rules for
  determining how to collect datas
• No ranking between M, C and E
• Best available information
• Internationally approved mlethodologies
• Importance of measurement for waste and water

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• For additional information
• www.eper.ec.europa.eu/eper/
• www.prtr.net
• www.unece.org/env/pp/prtr.htm

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• Michel AMAND
• Chair UNECE WG on PRTR Protocol
• Belgian Head of delegation for PRTR
  (EPRTR Regulation UNECE
  Protocol)
• Vice Chair OECD PRTR TF
• Tél [phone]
• email m.amand_at_mrw.wallonie.be