{"entity":{"iso2":"SL","iso3":"SLE","name":"Sierra Leone","slug":"sierra-leone"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"human-caused-air-pollution-exposure","source":"Energy Policy Institute at the University of Chicago (EPIC) (2026) \u2013 with minor processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/human-caused-air-pollution-exposure","title":"Exposure to air pollution from human sources","unit":"micrograms per cubic meter"},"observations":[{"date":"1998-01-01","value":21.47},{"date":"1999-01-01","value":19.04},{"date":"2000-01-01","value":15.48},{"date":"2001-01-01","value":13.93},{"date":"2002-01-01","value":13.17},{"date":"2003-01-01","value":14.63},{"date":"2004-01-01","value":15.59},{"date":"2005-01-01","value":15.02},{"date":"2006-01-01","value":13.81},{"date":"2007-01-01","value":14.57},{"date":"2008-01-01","value":14.93},{"date":"2009-01-01","value":17.6},{"date":"2010-01-01","value":15.93},{"date":"2011-01-01","value":15.74},{"date":"2012-01-01","value":13.29},{"date":"2013-01-01","value":14.69},{"date":"2014-01-01","value":14.75},{"date":"2015-01-01","value":14.18},{"date":"2016-01-01","value":13.87},{"date":"2017-01-01","value":13.62},{"date":"2018-01-01","value":13.77},{"date":"2019-01-01","value":13.97},{"date":"2020-01-01","value":13.23},{"date":"2021-01-01","value":13.06},{"date":"2022-01-01","value":12.71},{"date":"2023-01-01","value":13.14},{"date":"2024-01-01","value":14.74}],"summary":{"latest_period":"2024-01-01","latest_value":14.74,"max":21.47,"mean":14.8122,"min":12.71,"of":240,"rank":95,"trend":"falling"}}