{"entity":{"iso2":"US","iso3":"USA","name":"United States","slug":"united-states"},"indicator":{"licence":"Derived by Statizoid from the sources named on the page","slug":"pm-exposure-1990-2017-per-square-kilometre","source":"Statizoid (derived)","source_url":null,"title":"Pm exposure 1990 2017, per square kilometre","unit":"units per square kilometre"},"observations":[{"date":"1990-01-01","value":1.7368e-06},{"date":"1991-01-01","value":1.74119e-06},{"date":"1992-01-01","value":1.72569e-06},{"date":"1993-01-01","value":1.71018e-06},{"date":"1994-01-01","value":1.69468e-06},{"date":"1995-01-01","value":1.71897e-06},{"date":"1996-01-01","value":1.66367e-06},{"date":"1997-01-01","value":1.64817e-06},{"date":"1998-01-01","value":1.63266e-06},{"date":"1999-01-01","value":1.61716e-06},{"date":"2000-01-01","value":1.58124e-06},{"date":"2001-01-01","value":1.50073e-06},{"date":"2002-01-01","value":1.48813e-06},{"date":"2003-01-01","value":1.45384e-06},{"date":"2004-01-01","value":1.37257e-06},{"date":"2005-01-01","value":1.45595e-06},{"date":"2006-01-01","value":1.28225e-06},{"date":"2007-01-01","value":1.18732e-06},{"date":"2008-01-01","value":1.13037e-06},{"date":"2009-01-01","value":1.0242e-06},{"date":"2010-01-01","value":1.01674e-06},{"date":"2011-01-01","value":1.0314e-06},{"date":"2012-01-01","value":9.52525e-07},{"date":"2013-01-01","value":9.21205e-07},{"date":"2014-01-01","value":9.19175e-07},{"date":"2015-01-01","value":8.80286e-07},{"date":"2016-01-01","value":8.07243e-07},{"date":"2017-01-01","value":8.4105e-07},{"date":"2018-01-01","value":8.48054e-07},{"date":"2019-01-01","value":7.94668e-07},{"date":"2020-01-01","value":8.45608e-07},{"date":"2021-01-01","value":8.99859e-07},{"date":"2022-01-01","value":8.12058e-07},{"date":"2023-01-01","value":7.61749e-07}],"summary":{"latest_period":"2023-01-01","latest_value":7.61749e-07,"max":1.74119e-06,"mean":1.25581e-06,"min":7.61749e-07,"of":200,"rank":198,"trend":"falling"}}