Material flow accounts (env_ac_mfa)

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: Statistics Denmark 


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)
 



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1. Contact Top
1.1. Contact organisation

Statistics Denmark 

1.2. Contact organisation unit

Department National Accounts, unit Green National Accounts 

1.5. Contact mail address

Sankt Kjelds Plads 11, Copenhagen 2200, Denmark


2. Metadata update Top
2.1. Metadata last certified 26/06/2024
2.2. Metadata last posted 30/04/2024
2.3. Metadata last update 30/04/2024


3. Statistical presentation Top
3.1. Data description

Economy-wide material flow accounts (EW-MFA) provide an aggregate overview, in thousand tonnes per year, of the material flows into and out of an economy. EW-MFA cover solid, gaseous, and liquid materials, except for bulk flows of water and air. Like the system of national accounts, EW-MFA constitute a multi-purpose information system. The detailed material flows provide a rich empirical database for numerous analytical purposes. Further, EW-MFA are used to derive various material flow indicators.

The National Statistical Institute (NSI) sent to Eurostat on yearly basis the EW-MFA. The accounts comprise the following reporting tables:

  • Table A 'Domestic extraction (DE)': records material flows from the environment into the economy in a detailed breakdown by type of material
  • Table B 'Imports - total imports (intra- and extra-EU) and Table D 'Exports – total exports (intra- and extra-EU)': These physical trade tables record the imports and exports of products in thousand tonnes and grouped by materials.
  • Table F 'Domestic processed output (DPO)': records material flows from the economy to the domestic environment (e.g. emissions to air, water and soil)
  • Table G 'Balancing items': reports some memorandum items which are necessary to have the full material balance related to a national economy
  • Table H 'Indicators': presents the EW-MFA derived indicators which are automatically calculated from Table A to G

Table I 'Material flow accounts in raw material equivalents (RME)': records material flow accounts in raw material equivalents (MFA-RME). Some items are calculated automatically based on data reported in Table A and Table I

3.2. Classification system

EW-MFA record physical flows of materials broken down by type of flow and by type of material.

The type of flow dimension corresponds to the EW-MFA questionnaire reporting tables and derived indicators, namely:

  • domestic extraction (Table A)
  • physical imports (Table B)
  • physical exports (Table D)
  • domestic processed output (Table F)
  • balancing items (Table G)
  • direct material input (indicator)
  • domestic material consumption (indicator)
  • physical trade balance (indicator)

The breakdown by type of material employs a classification of materials. This EW-MFA classification of materials is hierarchical with main material flow categories (1-digit level). Each main category is further broken down, maximal down to 4-digit-level:

    1-digit: material category;

    2-digit: material class;

    3-digit: material group;

    4-digit: material sub-group.

3.3. Coverage - sector

The data refer to national economies as defined in the system of national accounts.

3.4. Statistical concepts and definitions

Conceptually economy-wide material flow accounts (EW-MFA) belong to the international system of environmental economic accounting (SEEA-Central Framework). Furthermore, EW-MFA is one of several physical modules of Eurostat's programme on European environmental economic accounts. It is covered by Regulation (EU) No. 691/2011 on European environmental economic accounts.

EW-MFA are closely related to concepts and definitions of national accounts. Most notably they follow the residence principle, i.e. they record material flows related to resident unit's activities, regardless where those occur geographically.

Further methodological guidelines are provided in various publications by Eurostat (see Eurostat website > Environment > Methodology, heading: 'Material flows and resource productivity').

For more detailed information please see also 3.1.

3.5. Statistical unit

Statistical units change according to the different data sources (e.g. agriculture, forestry and fishery statistics, production statistics, geological surveys, energy statistics, foreign trade statistics etc.) which EW-MFA are based on.

3.6. Statistical population

EW-MFA refer to the entire national economy of the reporting country (see also 3.3 'Coverage - sector')).

EW-MFA include all materials (excluding water and air) crossing the system boundary (between the environment and the economy) on the input side or on the output side. The economy is demarcated by the conventions of the national accounting system (resident units).

Material inputs to the economy cover extractions of natural resources (excluding water and air) from the natural environment and imports of material products (goods) from the rest of the world economy (ROW).

Material outputs are disposals of materials to the natural environment and exports of material products and waste to the ROW. Information on natural resources extracted and traded products is provided by different statistical units.

3.7. Reference area

The EW-MFA: Denmark. The RME: Global resource extraction necessary to satisfy Danish import, export, consumption etc.

3.8. Coverage - Time

Please see the table in 3.8.1.

3.8.1. Coverage – Time: by questionnaire table

Questionnaire table

From (YEAR)

To (YEAR)

Comments

Domestic extraction (Table A)

 1993

 2021

 Data updated for the period 2019 - 2021

Imports – Total trade (Table B)

 1993

 2021

 Data updated for the period 2019 - 2021

Exports – Total trade (Table D)

 1993

 2021

 Data updated for the period 2019 - 2021

Domestic processed output (Table F)

  -

  -

 

Balancing items (Table G)

  -

  -

 

Material flow accounts in raw material equivalents (RME) (Table I)

  2008

  2018

 

3.9. Base period

Not applicable because EW-MFA are not reported as indices.


4. Unit of measure Top

The unit of measure is thousand tonnes.


5. Reference Period Top

The data refer to the calendar years.


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Economy-wide material flow accounts (EW-MFA) are legally covered by Regulation (EU) 691/2011 on European Environmental Economic Accounts.

6.2. Institutional Mandate - data sharing

Not applicable in national level this information is required at European level only.


7. Confidentiality Top
7.1. Confidentiality - policy

Not relevant.

7.2. Confidentiality - data treatment

Not relevant.


8. Release policy Top
8.1. Release calendar

20/03/2024

8.2. Release calendar access

https://www.dst.dk/en/Statistik/planlagte

8.3. Release policy - user access

Statistics are always published at 8:00 a.m. at the day announced in the release calendar. No one outside of Statistics Denmark can access the statistics before they are published.


9. Frequency of dissemination Top

EW-MFA: Annually. The RME: The frequency of data collection has not been decided yet.


10. Accessibility and clarity Top
10.1. Dissemination format - News release

News release on 2025-03-20. 

https://www.dst.dk/da/Statistik/nyheder-analyser-publ/nyt/NytHtml?cid=44647

 

 

 

 

 

 

10.2. Dissemination format - Publications

The EW-MFA is a part of the Denmark in figures yearly book and was part of the Statistical Yearbook up until 2017. The RME was the topic of the DST-analysis "How the Danish consumption affects the world's natural resources".

https://www.dst.dk/da/Statistik/Analyser/visanalyse?cid=36215

10.3. Dissemination format - online database

The statistics are published in the StatBank under the subject Material flows and waste in the following table:

MRM2: Economy-wide material flow accounts by material type and indicator

https://www.statistikbanken.dk/mrm2

 

RME1: Material flows converted to raw material equivalents by type of raw material and indicator

https://www.statistikbanken.dk/rme1

 

RME2: Import and export in raw material equivalents by goods and services and type of raw material

https://www.statistikbanken.dk/rme2

10.3.1. Data tables - consultations

Will be calculated and provided by EUROSTAT.

10.4. Dissemination format - microdata access

Accounts are published at the most detailed level.

10.5. Dissemination format - other

Not relevant.

10.5.1. Metadata - consultations

Will be calculated and provided by EUROSTAT.

10.6. Documentation on methodology

https://www.dst.dk/en/Statistik/dokumentation/documentationofstatistics/economy-wide-material-flow-accounts

10.6.1. Metadata completeness - rate

Will be calculated and provided by EUROSTAT.

10.7. Quality management - documentation

https://www.dst.dk/en/Statistik/dokumentation/documentationofstatistics/economy-wide-material-flow-accounts


11. Quality management Top

Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.

11.1. Quality assurance

Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.

11.2. Quality management - assessment

No measurements of quality has been done, however the quality of the statistics is seen as best possible, given the resources available for the compilation of accounts. The Material Flow Accounts have the scope and the degree of detail that is on the same level as other countries, such as Netherlands, Sweden and Norway. Accounts are compiled in accordance with recommendations and quality standards provided by UN and Eurostat.


12. Relevance Top
12.1. Relevance - User Needs

The Material Flow Accounts and raw material equivalents are relevant for anyone seeking information on the relationship between the economy and the use of natural resources. The results are pertinent for analyses of sustainable resource consumption, as domestic material consumption serves as an indicator for two of the UN's sustainability goals. The accounts are requested by ministries, agencies, consulting firms, among others. The accounts are part of the European environmental economic accounts collected by Eurostat.

12.2. Relevance - User Satisfaction

The Material Flow Account is discussed with significant expert users within the Expert Committee for Environmental Economic Statistics and Accounts. Information on user satisfaction is not collected separately, but the needs and satisfaction of users are discussed within the contact committee.

12.3. Completeness

Import and export data, along with the derived indicators in the EW-MFA can be considered complete. In order to fulfil the Eurostat’s requirements for completeness within the EW-MFA, some additional flows of residuals (emissions to air, among others), as well as material accumulation in the economy, have to be accounted for as well.     

12.3.1. Data completeness - rate

Will be calculated and provided by EUROSTAT.


13. Accuracy Top

The overall Material Flow Accounts are based on a range of well-established official statistics. However, the information about the weight of different material types relies in some cases on conversion factors from other units, introducing uncertainty. Additionally, the raw material equivalents are based on a relatively new calculation method involving model calculations and a wide range of assumptions and estimates. Consequently, these figures are associated with greater uncertainty and primarily express orders of magnitude.

13.1. Accuracy - overall

The overall Material Flow Accounts are based on a range of well-established official statistics. However, the information about the weight of different material types relies in some cases on conversion factors from other units, introducing uncertainty. Additionally, the raw material equivalents are based on a relatively new calculation method involving model calculations and a wide range of assumptions and estimates. Consequently, these figures are associated with greater uncertainty and primarily express orders of magnitude.



Annexes:
Annex 3
13.2. Sampling error

Not applicable because data are not based on a sample survey.

13.2.1. Sampling error - indicators

Not applicable because data are not based on a sample survey.

13.3. Non-sampling error

Not applicable.

13.3.1. Coverage error

Not applicable.

13.3.1.1. Over-coverage - rate

Not applicable.

13.3.1.2. Common units - proportion

Not applicable.

13.3.2. Measurement error

Not applicable.

13.3.3. Non response error

Not applicable.

13.3.3.1. Unit non-response - rate

Not applicable.

13.3.3.2. Item non-response - rate

Not applicable.

13.3.4. Processing error

Not applicable.

13.3.5. Model assumption error

Not applicable.


14. Timeliness and punctuality Top
14.1. Timeliness

Preliminary figures are compiled and published in March. The final figures are published in March 3 years after the reference year.

14.1.1. Time lag - first result

Not applicable.

14.1.2. Time lag - final result

Not applicable.

14.2. Punctuality

The environmental accounts are normally published without delay in relation to the scheduled publication.

14.2.1. Punctuality - delivery and publication

Will be calculated and provided by EUROSTAT.


15. Coherence and comparability Top

The Material Flow Account is prepared in accordance with existing international standards and follows the UN's standards for environmental economic accounts, the System of Environmental Economic Accounting (SEEA). The account is reported to Eurostat and is comparable to statistics from other countries that adhere to the same standards.

15.1. Comparability - geographical

Data on EW-MFA are compiled according to harmonised guidelines provided by Eurostat and hence comparable across European countries reporting EW-MFA data to Eurostat.

15.1.1. Asymmetry for mirror flow statistics - coefficient

Not applicable because physical imports and exports as recorded in EW-MFA are not specified by origin and/or destination.

15.2. Comparability - over time

Please see the table in 15.2.1.1.

15.2.1. Length of comparable time series

Will be calculated and provided by EUROSTAT.

15.2.1.1. Comparability - over time detailed

Please use below table for explaining b)-flags (breaks in time series):

Year (of the break in series) Questionnaire table(s) MF-code(s) Reason for' break in time series'
 None  None    No break in time series
15.3. Coherence - cross domain

The Material Flow Account is part of the green national accounts and is prepared with the same boundaries as the National Accounts. The Material Flow Account forms the basis for the preparation of the Detailed material flow accounts (physical supply-use tables), where material consumption is reported at the industry level. The Energy Account contains the same information about fossil energy and its products as the Material Flow Account. However, the relevant quantities are reported in gigajoules.

15.3.1. Coherence - sub annual and annual statistics

Not applicable; reported EW-MFA data are only annual.

15.3.2. Coherence - National Accounts

Not appplicable.

15.4. Coherence - internal

It is ensured that data is internally consistent.


16. Cost and Burden Top

There is no direct response burden in relation to the compilation of these statistics, since all information is based on existing statistics.


17. Data revision Top
17.1. Data revision - policy

Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.

17.2. Data revision - practice

Preliminary figures are compiled and published in March. The final figures are published in March 3 years after the reference year. 

17.2.1. Data revision - average size

Will be calculated and provided by EUROSTAT.


18. Statistical processing Top

The EW-MFA and the RME are compiled on the basis of internal sources on resource extraction, import and export The RME account is based on modelling. 

18.1. Source data

The material flow accounts are based on information from statistics on Danish resource extraction, such as agricultural statistics, forestry statistics, and statistics on the extraction of oil and natural gas, as well as other raw materials (sand, gravel, etc.). Additionally, data on imports and exports from the Foreign Trade in Goods statistics are used.

The model calculation underlying the material flow accounts measured in raw material equivalents is based not only on the mentioned source statistics but also on data on international trade provided by Eurostat.

18.1.1. Source data - Table A, B, D, F and G

Please use Annex 1 to report the detailed data sources for questionnaire tables A, B, D, F and G.

The Economy-wide Material Flow accounts are based on information concerning weights of materials is obtained from the external trade statistics and the energy accounts as well as statistics on quarrying and agricultural statistics on agriculture. Data regarding weights of fish landings are obtained from the Ministry of Food, Agriculture and Fisheries.

 



Annexes:
EW-MFA_Annex_1
18.1.2. Source data - Table I

The raw material equivalents are based on information from the EW-MFA, the national accounts, foreign trade statistics, energy account and the Eurostat RME model.

18.2. Frequency of data collection

EW-MFA: Annually. The RME: The frequency of data collection has not been decided yet.

18.3. Data collection

Deliveries from other statistics.

18.4. Data validation

Thorough troubleshooting and data validation are conducted on the various source statistics before they are delivered to the Material Flow Accounts. Since not all sources have data for the latest year at the time of the publication of the material flow accounts, the weight of some sources relies on assumptions. Not all goods are measured by weight in the source statistics. The weight of these goods is estimated based on weight measurements in other source statistics or weight estimates from Eurostat.

During the preparation of the Material Flow Accounts, the latest version is compared with previous versions. The purpose is to check the consistency of data over time and to identify any errors in loading, etc.

18.5. Data compilation

Data from the various sources on which the Material Flow Accounts are based are compiled into a unified system using the same definitions and classifications as the National Accounts.

Since the Material Flow Accounts are measured in weight, conversion from value to weight is carried out for material types where weight is not included in the source statistics. This is done using a series of conversion factors.

Material flows measured in raw material equivalents are calculated using a model developed by Eurostat. Eurostat refers to the model as the 'RME-tool', where RME stands for Raw Material Equivalent. The model estimates raw material equivalents for imports and exports and is based on, among other things, data on international trade.

18.5.1. Imputation - rate

Not applicable.

18.5.2. Estimation approaches for specific items

Please use Annex 2 to describe estimation approaches for specific items.



Annexes:
EW-MFA_Annex_2
18.5.3. Adjustment used of correspondence table for Tables B and D

Not applicable

18.5.4. Adjustment used of conversion factors for Tables B and D

For ships, Eurostat’s conversion factors were used (both value per kilogram and unit mass conversion factor).

18.5.5. Fuel trade, residence adjustment

No adjustment

18.5.6. Significant problems

Not applicable

18.6. Adjustment

Not applicable; i.e. in EW-MFA no time series adjustment necessary.

18.6.1. Seasonal adjustment

Not applicable.


19. Comment Top


Related metadata Top


Annexes Top