{"entity":{"iso2":null,"iso3":null,"name":"Swansea","slug":"swansea"},"indicator":{"licence":"OECD Terms and Conditions (attribution required)","slug":"air-pollution-cities-and-fuas-population-exposure-to-nitrogen-dioxide","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 nitrogen dioxide","unit":"Microgrammes per cubic metre"},"observations":[{"date":"2021-01-01","value":40.4431},{"date":"2022-01-01","value":41.3447},{"date":"2023-01-01","value":0.497328},{"date":"2024-01-01","value":35.751},{"date":"2025-01-01","value":32.6152}],"summary":{"latest_period":"2025-01-01","latest_value":32.6152,"max":41.3447,"mean":30.1303,"min":0.497328,"of":1316,"rank":648,"trend":"volatile"}}