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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Statistical Office of the Slovak Republic |
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1.2. Contact organisation unit | Cross-sectional Statistics Department |
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1.5. Contact mail address | Lamačská cesta 3/C, 840 05 Bratislava 45, Slovakia |
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2.1. Data description | |||
Data on generation and treatment of waste and information on waste treatment facilities according to the Regulation on waste statistics (EC) No. 2150/2002, amended by Commission Regulation (EU) No. 849/2010. Submitted datasets provide information on generation and treatment of waste and on waste treatment facilities in Slovakia, specifically:
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2.2. Classification system | |||
The following classifications are used for compiling datasets on waste:
All applied classifications are compatible with requirements under the Regulation on waste statistics. |
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2.3. Coverage - sector | |||
The dataset on waste generation includes waste generated by all economic activities and also by households activities. The dataset on waste treatment includes only the final treatment operations, pre-treatment activities (like sorting, drying) are excluded. |
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2.4. Statistical concepts and definitions | |||
Concepts and definitions regarding waste statistics are specified in the Regulation on waste statistics (EC) No. 2150/2002, amended by Commission Regulation (EU) No. 849/2010. Waste statistics is regulated at national level by the Act on Waste No 79/2015. |
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2.5. Statistical unit | |||
Responding units are:
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2.6. Statistical population | |||
Dataset on waste generation includes waste generated in Slovakia by companies (statistics covers companies that produce over 50 kg of HAZ waste or over 1 ton of NON-HAZ waste per year) and municipal waste generated by households. Dataset on waste treatment includes waste treated by final treatment operations (recovery, disposal operations) on the territory of Slovakia. |
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2.7. Reference area | |||
Datasets on waste generation and waste treatment: data are compiled at national level - Slovakia. Datasets on waste treatment facilities: data are compiled at regional NUTS2 level (Bratislavský kraj, Západné Slovensko, Stredné Slovensko, Východné Slovensko). |
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2.8. Coverage - Time | |||
Data are available biennially for time series 2004 - 2020 (for even years). |
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2.9. Base period | |||
Not applicable. |
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3.1. Source data | ||||||||||||
The following source data were used for compiling datasets on waste generation and waste treatment (both datasets GEN, TRT are based on the same data sources):
Database on waste treatment facilities managed by the Ministry of Environment of the SR was used as the data source for dataset on facilities (FAC). The database contains data from Registration lists of waste treatment facilities. Review of used data sources:
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3.2. Frequency of data collection | ||||||||||||
Source data described in sub-concept 3.1 are obtained on annual basis. |
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3.3. Data collection | ||||||||||||
Statistical survey on municipal waste from municipalities:
Data and information obtained in the statistical survey on municipal waste from municipalities (statistical questionnaire ZP 6-01: www.statistics.sk – Metadata > Pattern of statistical questionnaires).
Description of statistical survey on municipal waste from municipalities
Reports on waste submitted by companies:
Data from reports are recorded into the Waste Information System - database, which is managed by the Ministry of Environment of the SR. Data and information obtained in the reports on waste:
Registration lists of waste treatment facilities:
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3.4. Data validation | ||||||||||||
Validation process for data collected from reports on waste submitted by companies:
Validation process for data collected in the statistical survey on municipal waste from municipalities:
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3.5. Data compilation | ||||||||||||
The source data described in sub-concept 3.1. were used for compilation of datasets for waste generation and waste treatment. Individual data at the level of companies, municipalities broken down by waste types (6-digit codes) and by waste treatment operations (R, D codes) are available. Table "Waste generation" was compiled as follows:
Table "Waste treatment" was compiled as follows:
Note: Specific national waste code 200308 "Small scale construction and demolition municipal waste" is excluded from reporting. Tables "Recovery and disposal facilities by NUTS 2" (table 1, table 2): Data on recovery and disposal facilities were compiled by experts from the Ministry of Environment of the SR by using information from the national database on waste treatment facilities. |
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3.6. Adjustment | ||||||||||||
Not applicable. |
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4.1. Quality assurance | |||
Statistical Office of the SR has implemented the Quality Management System (QMS) which is based on the International Standardization Organization standard - ISO 9001. The QMS has been certified by the certification body every three years, starting with 2006. Respecting the process approach principle and Plan-Do-Check-Act (PDCA) model, the system covers issues related to management, resources, operation and measurement, analysis and improvement. The system has been enhanced by the inclusion of requirements of the European Statistics Code of Practice and of selected elements of other advanced quality management systems. The QMS is described in the Quality manual (only available in Slovak). The application of the quality manual in practice ensures that all activities that have an impact on the quality of statistical products are planned, managed, examined and assessed. Also, the following documents are part of the QMS: Quality Policy of the Statistical Office of the Slovak Republic, Quality Declaration of the Statistical Office of the Slovak Republic, Quality Objectives of the Statistical Office of the Slovak Republic. |
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4.2. Quality management - assessment | |||
The good quality of waste statistics for Slovakia is ensured by use of reliable source data, applying sound methodology for data compiling in compliance with the Regulation on waste statistics and checking and validating compiled data at the national level and also by Eurostat. Data accuracy and reliability are described in more detail in the concept 6 of the quality report. National waste statistics (definitions, concepts, classifications) is harmonised with the EU waste statistics. |
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5.1. Relevance - User Needs | |||
The main user of waste statistics for Slovakia is Eurostat. Requirements on waste statistics are specified in the Regulation 2150/2002 on waste statistics. Another important users of this statistical product are:
Needs and requirements of the users of waste statistics have been met. |
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5.2. Relevance - User Satisfaction | |||
The customer's satisfaction survey specifically regarding waste statistics is not carried out at national level. In general, feedback of users of waste statistics is positive. |
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5.3. Completeness | |||
The submitted datasets for waste statistics for Slovakia are complete and meet the requirements under the Regulation on waste statistics. |
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5.3.1. Data completeness - rate | |||
All mandatory data are reported. |
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6.1. Accuracy - overall | |||
Overall, the accuracy of data on waste statistics for Slovakia is considered to be good. Source data come from reliable national sources (official statistics produced by institutions within the national statistical system - Statistical Office of the SR and Ministry of Environment of the SR). Data sources are described in detail in sub-concept 3.1 and validation of source data in sub-concept 3.4 of the quality report. Compiled datasets were checked and verified before submission to Eurostat. |
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6.2. Sampling error | |||
Not applicable, data are not based on a sample surveys. |
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6.2.1. Sampling error - indicators | |||
Not applicable. |
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6.3. Non-sampling error | |||
Non-sampling errors are described in detail in sub-concept 6.3.1 - 6.3.5. |
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6.3.1. Coverage error | |||
No divergence between responding units and the target population. |
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6.3.1.1. Over-coverage - rate | |||
All covered responding units belong to the target population. |
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6.3.1.2. Common units - proportion | |||
Not applicable. |
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6.3.2. Measurement error | |||
Data on waste are provided by responding units in tonnes. Possible inconsistencies identified in data submitted by responding units are usually corrected within the process of data validation. Waste treatment facilities report capacity data either in tonnes or in litres. Data that are reported in litres are subsequently converted into tonnes. |
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6.3.3. Non response error | |||
Non response errors are insignificant according our assessment. |
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6.3.3.1. Unit non-response - rate | |||
The unit response rate in statistical surveys on waste is very high, since the obligation of responding units to provide data is regulated by national legislation:
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6.3.3.2. Item non-response - rate | |||
Not calculated. The completeness of data on all items is ensured - in case that responding units submit incomplete reports, they are requested to provide missing data additionally. |
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6.3.4. Processing error | |||
Processing of the data is performed by experts from the Statistical Office the SR for MW data and by experts from the Ministry of Environment of the SR for data on waste from economic activities. Processed data are checked for possible errors. |
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6.3.4.1. Imputation - rate | |||
Not applicable. |
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6.3.5. Model assumption error | |||
Not applicable. |
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6.4. Seasonal adjustment | |||
Not applicable. |
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6.5. Data revision - policy | |||
There is no need for national revision policy for waste statistics, since the data provided to Eurostat and disseminated at national level are final verified data (not preliminary data). |
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6.6. Data revision - practice | |||
Final verified data are submitted to Eurostat. Preliminary data are not reported. Therefore no regular/planned revisions are performed on data on waste. The high accuracy of the final data is assured, so data revisions are not frequent in practice. In case that some revisions are necessary (e.g. error is detected within validation process), the revised dataset is provided to Eurostat. |
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6.6.1. Data revision - average size | |||
Not measured. |
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7.1. Timeliness | |||
See sub-concepts below. |
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7.1.1. Time lag - first result | |||
Not applicable. The data are provided to Eurostat only as a final results. |
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7.1.2. Time lag - final result | |||
Time lag between the end of reference period and the availability of the source data on waste statistics is circa 12 months. Final results - datasets submitted to Eurostat are available 18 months after the end of the reference year. |
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7.2. Punctuality | |||
The transmission deadline specified in the Regulation on waste statistics was met. |
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7.2.1. Punctuality - delivery and publication | |||
The datasets on waste generation and waste treatment for reference year 2020 were submitted to Eurostat on 29.6.2022 and the dataset on waste treatment facilities for reference year 2020 was submitted to Eurostat on 30.6.2022. |
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8.1. Comparability - geographical | |||
Datasets for Slovakia are compiled in compliance with the Regulation on waste statistics, applying common definitions and classifications, thus comparability with other EU countries is ensured. Since 2001, the Slovak Catalogue of Waste is harmonized with the European List of Waste and national classification of waste treatment operations is harmonized with the European list of disposal and recovery operations (R and D codes). Note: The current system of statistical reporting based mainly on data from waste generators does not allow to find sufficiently high-quality data on actual waste treatment. Therefore currently, WEEE waste is reported under W08A ‘Discarded equipment’ within the waste treatment data. |
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8.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable. |
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8.2. Comparability - over time | |||
Data for available time series 2004 - 2020 are comparable, since there were no significant changes in methodology of collection and processing data on waste at national level during this period. However there is one change (enhancement) in datasets on waste generation and waste treatment for reference year 2020 in comparison with previous reference years - inclusion of data on municipal waste from other sources (source of these data is the Waste Information System - database). |
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8.2.1. Length of comparable time series | |||
2004 - 2020 (data are available biennially). |
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8.3. Coherence - cross domain | |||
The use of statistical units and the classification of economic activities NACE makes the waste domain coherent with economic statistics. |
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8.4. Coherence - sub annual and annual statistics | |||
Not applicable. Sub-annual waste statistic is not available. |
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8.5. Coherence - National Accounts | |||
Not applicable. |
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8.6. Coherence - internal | |||
The data are internally coherent (totals are equal to the sum of the breakdowns). The information on generation of waste can not be directly linked to the information on the treatment of waste for several reasons. Main reason is that the dataset on waste generation includes all produced waste, whereas the dataset on waste treatment only includes waste treated by final operations (waste recovered, disposed) on the territory of the country. |
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9.1. Dissemination format - News release | |||
No news release at national level. |
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9.2. Dissemination format - Publications | |||
Statistical Office of the SR publishes regularly (annually in December) the thematic publication on waste statistics with the title "Waste in the Slovak Republic" which is available for public on the website of the Statistical Office of the SR (access: www.statistics.sk – Statistics > Environment > Environment > Publications). The publication is issued in accordance with the Catalogue of Publications of the Statistical Office of the SR. Waste statistics is included as a part of comprehensive publications of the Statistical Office of the SR - "Selected indicators on Environment", "Statistical Yearbook of the Slovak Republic". Information on waste is also published in the "Report on State of the Environment of the Slovak Republic" issued by Ministry of Environment of the Slovak Republic. |
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9.3. Dissemination format - online database | |||
Data on municipal waste are available in DATAcube. database on the website of the Statistical Office of the SR in the following tables:
Access: http://datacube.statistics.sk/#!/lang/en > 5. Environment > 5.1 Environment.
Information on waste are also available for public on the Information portal of the Ministry of the Environment of the SR - Enviroportal - folder Indicator > Indicator sets > Key Indicators > Waste. |
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9.3.1. Data tables - consultations | |||
Not available. |
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9.4. Dissemination format - microdata access | |||
Microdata are not disseminated. |
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9.5. Dissemination format - other | |||
No other dissemination. |
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9.6. Documentation on methodology | |||
Definitions regarding waste statistics are included in the Concepts dictionary which is available on website of the Statistical Office of the SR. Respective methodological notes are included in all publications and public databases. |
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9.7. Quality management - documentation | |||
Metadata/Quality report for users of municipal waste statistics is published on the website of the Statistical Office of the SR - access: www.statistics.sk > Metadata > Quality Reports > Municipal waste. |
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9.7.1. Metadata completeness - rate | |||
Not applicable. |
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9.7.2. Metadata - consultations | |||
Not applicable. |
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Statistical survey on municipal waste from municipalities: the survey is optimized; its costs and burden on respondents are reasonable; respondents/municipalities keep records from which they can fill in data into statistical forms rather easily; the statistical survey is conducted in electronic form. Reports on waste submitted by companies according to Act on Waste: the data collection poses a relatively heavy reporting burden on companies that have to fulfill also many other reporting obligations in the area of environment (air pollution, water consumption etc.); it is conducted in paper form - data from paper reports submitted by companies is necessary to record into the electronic database, which is time-consuming. Burden on respondents:
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11.1. Confidentiality - policy | |||
In general, the dissemination of statistical information in Slovakia is defined in part five of the Act No 540/2001 on state statistics. According to the Act, all national authorities or bodies executing state statistics shall adhere the obligation to ensure protection of confidential statistical data as specified in §29 and §30 of the Act. Rules for ensuring statistical confidentiality are defined in the document "Principles of applying protection of confidential statistical data" available on the website of the Statistical Office of the SR (only available in Slovak). The document is based on the Directive of the Statistical Office of the SR on protection of confidential data. |
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11.2. Confidentiality - data treatment | |||
Datasets on waste statistics for Slovakia submitted to Eurostat don't contain confidential statistical data (no data are flagged as "confidential"). Data on waste are compiled at the aggregated level. |
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No comments. |
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