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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | National statistical institute of Bulgaria |
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1.2. Contact organisation unit | Environmental and Energy accounts Department |
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1.5. Contact mail address |
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2.1. Metadata last certified | 01/10/2020 | ||
2.2. Metadata last posted | 28/09/2023 | ||
2.3. Metadata last update | 28/09/2023 |
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3.1. Data description | |||
Air emissions accounts (AEA) record flows of gaseous and particulate materials emitted into the atmosphere as a result of economic activity. AEA are a subset of environmental-economic accounts. They offer a detailed breakdown for 64 emitting economic activities (NACE), plus households, as defined in the national accounts of EU countries. They are aligned with economic statistics and GDP. These features make them suitable for integrated environmental-economic analyses and modelling – for example of 'carbon footprints' and climate-change modelling scenarios. National Statistical Institutes (NSI) submit AEA to Eurostat through a mandatory annual data collection. The data collection includes an electronic questionnaire and this quality report.
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3.2. Classification system | |||
The AEA dataset has the following dimensions: 1) Air pollutant: Emissions to air of the following gaseous and particulate substances are collected (greenhouse gases, air pollutants): Carbon dioxide without emissions from biomass (CO2), Carbon dioxide from biomass (Biomass CO2)*, Nitrous oxide (N2O), Methane (CH4), Perfluorocarbons (PFCs), Hydrofluorocarbons (HFCs), Sulphur hexafluoride (SF6) including nitrogen trifluoride (NF3), Nitrogen oxides (NOx), Non-methane volatile organic compounds, (NMVOC), Carbon monoxide (CO), Particulate matter < 10μm (PM10), Particulate matter < 2,5μm (PM2,5), Sulphur dioxide (SO2), Ammonia (NH3) 2) Geopolitical entity: EU Member States, EFTA Countries, Candidate Countries etc. 3) Economic activities: include 64 production activities (classified by NACE rev.2 A*64), and households’ consumption (3 sub-classes). 4) Time: reference year for which air emissions are reported 5) Unit: tonnes and thousand tonnes |
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3.3. Coverage - sector | |||
The data refer to national economies as defined in the system of national accounts. Greenhouse gases and air pollutants emitted by resident units representing the national economy are covered. |
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3.4. Statistical concepts and definitions | |||
Conceptually AEA belong to the international system of environmental economic accounting (SEEA-Central Framework). Furthermore, AEA 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. AEA are closely related to concepts and definitions of national accounts. Most notably, they follow the residence principle, i.e. they record emissions 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: 'Air emissions accounts'). |
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3.5. Statistical unit | |||
Data refer to emissions by resident economic units in the sense of SEEA CF 2012 and National Accounts (ESA), including households. |
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3.6. Statistical population | |||
The national economy is as defined in SEEA CF 2012 and National Accounts (ESA), i.e. all economic activities undertaken by resident units. |
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3.7. Reference area | |||
The reference area is the economic territory as defined in SEEA CF 2012 and National Accounts (ESA). A unit is said to be a resident unit of a country when it has a centre of economic interest in the economic territory of that country, that is, when it engages for an extended period (1 year or more) in economic activities in that territory. By following this residence principle, the Air Emission Accounts record emissions from resident units' activities, regardless where they occur. This is the main conceptual difference to emission inventories for greenhouse gases (UNFCCC) and air pollutants (CLRTAP). |
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3.8. Coverage - Time | |||
2008-2021 |
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3.9. Base period | |||
Not applicable because AEA are not reported as indices. |
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The unit of measure is tonnes or thousand tonnes. F-gases (HFC, PFC, SF6 and NF3) are reported in tonnes of CO2 equivalents. SOX are reported in tonnes of SO2 equivalents, and NOX are reported in tonnes of NO2 equivalents. |
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The data refer to calendar years. |
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6.1. Institutional Mandate - legal acts and other agreements | |||
Air emissions accounts (AEA) are legally covered by Regulation (EU) 691/2011on European Environmental Economic Accounts. |
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6.2. Institutional Mandate - data sharing | |||
Not applicable at national level. |
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7.1. Confidentiality - policy | |||
Law on Statistics; · Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society. |
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7.2. Confidentiality - data treatment | |||
Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law. |
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8.1. Release calendar | |||
Data are not published |
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8.2. Release calendar access | |||
Data are not published |
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8.3. Release policy - user access | |||
Data are not published |
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Data are disseminated annually. |
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10.1. Dissemination format - News release | |||
Data are not published |
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10.2. Dissemination format - Publications | |||
Data are not published |
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10.3. Dissemination format - online database | |||
Data are not published |
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10.3.1. Data tables - consultations | |||
Data are not published |
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10.4. Dissemination format - microdata access | |||
Data are not published |
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10.5. Dissemination format - other | |||
Data are not published |
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10.5.1. Metadata - consultations | |||
Data are not published |
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10.6. Documentation on methodology | |||
Data are not published |
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10.6.1. Metadata completeness - rate | |||
Data are not published |
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10.7. Quality management - documentation | |||
Data are not published |
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11.1. Quality assurance | |||
European Statistics Code of Practice; · A common framework for quality management in the National Statistical System |
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11.2. Quality management - assessment | |||
A common framework for quality management in the National Statistical System |
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12.1. Relevance - User Needs | |||
Data are not published |
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12.2. Relevance - User Satisfaction | |||
Data are not published |
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12.3. Completeness | |||
Not applicable; To ensure comparability, this will be calculated and provided by EUROSTAT in the European quality report using a standardised method.
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12.3.1. Data completeness - rate | |||
Not applicable; To ensure comparability, this will be calculated and provided by EUROSTAT in the European quality report using a standardised method. |
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13.1. Accuracy - overall | |||
See Annex 1. Annexes: Annex 1 |
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13.2. Sampling error | |||
Not applicable because data are not based on a sample survey. |
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13.2.1. Sampling error - indicators | |||
Not applicable because data are not based on a sample survey. |
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13.3. Non-sampling error | |||
Not applicable. |
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13.3.1. Coverage error | |||
Not applicable. |
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13.3.1.1. Over-coverage - rate | |||
Not applicable. |
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13.3.1.2. Common units - proportion | |||
Not applicable. |
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13.3.2. Measurement error | |||
Not applicable. |
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13.3.3. Non response error | |||
Not applicable. |
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13.3.3.1. Unit non-response - rate | |||
Not applicable. |
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13.3.3.2. Item non-response - rate | |||
Not applicable. |
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13.3.4. Processing error | |||
Not applicable. |
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13.3.5. Model assumption error | |||
Not applicable. |
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14.1. Timeliness | |||
Data are not published |
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14.1.1. Time lag - first result | |||
Not applicable. |
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14.1.2. Time lag - final result | |||
Not applicable. |
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14.2. Punctuality | |||
Data are not published |
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14.2.1. Punctuality - delivery and publication | |||
Data are not published |
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15.1. Comparability - geographical | |||
AEA are compiled according to harmonised guidelines provided by Eurostat and hence comparable across European countries reporting AEA to Eurostat. |
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15.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable. |
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15.2. Comparability - over time | |||
See Annex 2. Annexes: Annex 2 |
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15.2.1. Length of comparable time series | |||
Not applicable; To ensure comparability, this will be calculated and provided by EUROSTAT in the European quality report using a standardised method. |
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15.3. Coherence - cross domain | |||
Not applicable |
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15.3.1. Coherence - sub annual and annual statistics | |||
Not applicable, because AEA data are annual. |
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15.3.2. Coherence - National Accounts | |||
Not applicable |
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15.4. Coherence - internal | |||
Not applicable |
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There is no burden on the respondents. 4 experts with 60 working days for each participate. |
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17.1. Data revision - policy | |||
Revision of the data is applied if necessary. |
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17.2. Data revision - practice | |||
See previous position. |
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17.2.1. Data revision - average size | |||
Not applicable; To ensure comparability, this will be calculated and provided by EUROSTAT in the European quality report using a standardised method. |
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18.1. Source data | |||
The air emissions accounts are based on: - data from official country air emissions reports to CLRTAP and UNFCCC; - annual statistical survey on air emissions; - data from energy, agriculture and PRODCOM statistics |
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18.2. Frequency of data collection | |||
Annually |
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18.3. Data collection | |||
The institution responsible for the country reports is the Executive Environmental Agency (ExEA). As some additional adjustments may be done by ExEA, the officially reported emissions for economical sectors are disaggregated back to A64 level by using the data from the statistical survey as weights. This approach is possible, because the raw data from the air emissions survey include both SNAP and NACE Rev. 2 codes. The same weights by A64 are used for disaggregation of the emissions reported to UNFCCC |
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18.4. Data validation | |||
Comparing the data to those reported in previous years. |
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18.5. Data compilation | |||
Data are revised according to the data from of the last Bulgarian reports to UNFCCC and CLRTAP. There aren’t any changes in the methodology or the sources |
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18.5.1. Imputation - rate | |||
Not applicable. |
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18.5.2. Method used to allocate emissions to economic activities | |||
The institution responsible for the country reports is the Executive Environmental Agency (ExEA). As some additional adjustments may be done by ExEA, the officially reported emissions for economical sectors are disaggregated back to A64 level by using the data from the statistical survey as weights. This approach is possible, because the raw data from the air emissions survey include both SNAP and NACE Rev. 2 codes. The same weights by A64 are used for disaggregation of the emissions reported to UNFCCC |
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18.5.3. Method used to determine and distribute road transport emissions | |||
The transport air emissions from official country reports are distributed proportionally to the fuel consumption by NACE sectors and households. The fuel consumption data are provided by the energy statistics. |
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18.5.4. Adjustments for residence principle | |||
The data for residence and non-residence are included in official report and the distribution for land transport, water transport and air transport is based of energy statistics data on used fuels, TJ. Non-residents on the teritory -Water transport 1. Bulgaria is a small country. The sea border is no more than 300 km. coastline. The distance between the two sea ports where ships are unloaded is about 120 km. (Varna port - Burgas port). Bulgarian companies do not transport goods from one port to another, let alone foreign ones. It is faster and easier to transport goods and people by road or rail than by water. |
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18.6. Adjustment | |||
Not applicable |
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18.6.1. Seasonal adjustment | |||
Not applicable. |
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