{"entity":{"iso2":"ST","iso3":"STP","name":"Sao Tome and Principe","slug":"sao-tome-and-principe"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"average-exposure-pm25-pollution","source":"Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/average-exposure-pm25-pollution","title":"Average annual exposure to PM2.5 air pollution","unit":"micrograms per cubic meter"},"observations":[{"date":"1990-01-01","value":15.9663},{"date":"1991-01-01","value":15.3187},{"date":"1992-01-01","value":15.3251},{"date":"1993-01-01","value":15.3315},{"date":"1994-01-01","value":15.3379},{"date":"1995-01-01","value":14.0364},{"date":"1996-01-01","value":15.3507},{"date":"1997-01-01","value":15.3571},{"date":"1998-01-01","value":15.3635},{"date":"1999-01-01","value":15.3698},{"date":"2000-01-01","value":16.0302},{"date":"2001-01-01","value":14.998},{"date":"2002-01-01","value":15.9952},{"date":"2003-01-01","value":14.8039},{"date":"2004-01-01","value":15.6286},{"date":"2005-01-01","value":16.5018},{"date":"2006-01-01","value":14.1739},{"date":"2007-01-01","value":13.6279},{"date":"2008-01-01","value":14.106},{"date":"2009-01-01","value":12.8822},{"date":"2010-01-01","value":13.9058},{"date":"2011-01-01","value":15.3212},{"date":"2012-01-01","value":16.6722},{"date":"2013-01-01","value":16.2936},{"date":"2014-01-01","value":12.3095},{"date":"2015-01-01","value":18.7235},{"date":"2016-01-01","value":16.7453},{"date":"2017-01-01","value":13.5589},{"date":"2018-01-01","value":12.8849},{"date":"2019-01-01","value":13.8009},{"date":"2020-01-01","value":15.8581},{"date":"2021-01-01","value":14.8157},{"date":"2022-01-01","value":14.9992},{"date":"2023-01-01","value":15.1195}],"summary":{"latest_period":"2023-01-01","latest_value":15.1195,"max":18.7235,"mean":15.0739,"min":12.3095,"of":200,"rank":118,"trend":"flat"}}