1. Inventory first method
Air Emission Accounts
Inventory first method
Angelica Tudini
ESTP course
Vienna, June 2014
Vienna, September 2012

2. Air emission inventories
Air emission data are classified - for each pollutant - according to process oriented classifications:
CRF (Common Reporting Format)
Nomenclature for Reporting (NFR)
SNAP: Selected Nomenclature for sources of Air Pollution
International conventions relevant for CORINAIR:
UNFCCC = United Nations Framework Convention on Climate Change - Greenhouse gases
(CO2, N2O, CH4, HFCs, PFCs and SF6)
UNECE-CLRTAP = Convention on Long Range Transboundary Air Pollution - Air pollutants (NOx,
CO, NMVOC, SO2, NH3, 9 heavy metals, 17 POPs (persistent organic pollutants))

3. Industries and households – Eurostat questionnaire
A. Tudini - Istat

4. 1. Qualitative links between each process and activities,
How to shift from the process-based inventory classification to the activity-based Air emission accounts classification?
1. Qualitative links between each process and activities,
i.e. which are the activities in which a process takes
2. Allocation of each process emissions
to the related Air emission accounts activities
Air emission accounts – Theory and concepts 4 4

5. NAMEA economic activities NAMEA households consumption functions
Which are the NAMEA activities?
industries
NACE Rev. 2 (Statistical classification of economic activities in the European Community)
COICOP
(Classification of Individual Consumption by Purpose)
Air emission accounts functions:
transport, heating, other
households
NAMEA economic activities +
NAMEA households consumption functions
= NAMEA activities

6. 2.148 Definition: The local kind-of-activity unit (local KAU) is the part of a KAU which corresponds to a local unit. The local KAU is called establishment in the 2008 SNA and ISIC Rev. 4. The KAU groups all the parts of an institutional unit in its capacity as producer contributing to the performance of an activity at class level (four digits) of the NACE Rev. 2 and corresponds to one or more operational subdivisions of the institutional unit. The institutional unit's information system must be capable of indicating or calculating for each local KAU at least the value of production, intermediate consumption, compensation of employees, the operating surplus and employment and gross fixed capital formation. The local unit is an institutional unit, or part of an institutional unit, producing goods or services situated in a geographically identified place If an institutional unit producing goods or services contains a principal activity and also one or several secondary activities, it is subdivided into the same number of KAUs, and the secondary activities are classified under different headings from the principal activity. The ancillary activities are not separated from the principal or secondary activities. But KAUs falling within a particular heading of the classification system can produce products outside the homogeneous group on account of secondary activities connected with them which cannot be separately identified from available accounting documents. Thus a KAU may carry out one or more secondary activities.
A. Tudini - Istat

7. Implication for air emission accounts:
Industries
2.150 Definition: An industry consists of a group of local KAUs engaged in the same, or similar, kind-of-activity. At the most detailed level of classification, an industry consists of all the local KAUs falling within a single class (four digits) of NACE Rev. 2 and which are therefore engaged in the same activity as defined in the NACE Rev. 2.
Implication for air emission accounts:
Since national accounts data are presented by industry, each activity is responsible for the emissions stemming from its principal, secondary (if any) and ancillary activities
A. Tudini - Istat

8. Which are the NAMEA activities in which
each CRF/NRF/SNAP process takes place?
Possible outcomes:
CRF/NRF/SNAP processes with only one link to the NAMEA activities
CRF/NRF/SNAP processes with multiple links to the NAMEA activities
emissions from secondary and ancillary activities are allocated on the base of the criteria used for the construction of economic accounts
Main Criteria:
emissions of each CRF/NRF/SNAP process are always attributed to the NAMEA activities that directly produce them (general rule)
emissions of each CRF/NRF/SNAP process are attributed to the NAMEA activities depending to how the emissions are actually produced

9. 2. Allocation of the emissions
Possible outcomes of the FIRST STEP:
CRF/NRF/SNAP processes with only one link to the NAMEA activities
can be directly allocated to the related NAMEA activity without further calculation
CRF/NRF/SNAP processes with multiple links to the NAMEA activities
what is the share of air emissions to be attributed to each of the related NAMEA activities?

10. Methods used to distribute the emissions of CRF/NRF/SNAP processes with multiple links to NAMEA activities
For CRF/NRF/SNAP processes linked to more than one NAMEA activity, basic data are needed in order to distribute the emissions among the related NAMEA activities.
Specifically:
energy data (data on emissions by fuel and energy use data by activity)
activity-related CORINAIR background data
data on full time employees

11. Process by process analysis of SNAP/CRF – NACE link based on excel file