{"entity":{"iso2":null,"iso3":null,"name":"Oklahoma","slug":"oklahoma"},"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":12.9736},{"date":"2022-01-01","value":13.0592},{"date":"2023-01-01","value":0.0332115},{"date":"2024-01-01","value":12.2951},{"date":"2025-01-01","value":14.7408}],"summary":{"latest_period":"2025-01-01","latest_value":14.7408,"max":14.7408,"mean":10.6204,"min":0.0332115,"of":1324,"rank":880,"trend":"volatile"}}