{"entity":{"iso2":null,"iso3":null,"name":"Gniezno","slug":"gniezno"},"indicator":{"licence":"OECD Terms and Conditions (attribution required)","slug":"air-pollution-cities-and-fuas-population-exposure-to-pm2-5","source":"Organisation for Economic Co-operation and Development","source_url":"https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_FUA_ENV@DF_POLLUTION","title":"Air pollution - Cities and FUAs \u2014 Population exposure to PM2.5","unit":"Microgrammes per cubic metre"},"observations":[{"date":"2021-01-01","value":53.3102},{"date":"2022-01-01","value":52.4376},{"date":"2023-01-01","value":0.346876},{"date":"2024-01-01","value":48.8168},{"date":"2025-01-01","value":51.4762}],"summary":{"latest_period":"2025-01-01","latest_value":51.4762,"max":53.3102,"mean":41.2775,"min":0.346876,"of":1316,"rank":159,"trend":"falling"}}