@momkov Thank you for your comment. Please refer to the following metadata, the National Statistical Institutes (or other competent authorities like Ministries of Environment or Environmental Protection Agencies) collect data from various sources: https://ec.europa.eu/eurostat/cache/metadata/en/env_wasmun_esms.htm

🐦🔗: https://n.respublicae.eu/EU_Eurostat/status/1632767776829104129