{"entity":{"iso2":"EE","iso3":"EST","name":"Estonia","slug":"estonia"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"average-nitrate-concentration-in-freshwater","source":"European Environment Agency (2023) \u2013 with minor processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/average-nitrate-concentration-in-freshwater","title":"Average nitrate concentration in freshwater","unit":"milligrams per litre"},"observations":[{"date":"1992-01-01","value":6.36387},{"date":"1993-01-01","value":4.13167},{"date":"1994-01-01","value":3.16368},{"date":"1995-01-01","value":2.97433},{"date":"1996-01-01","value":2.94794},{"date":"1997-01-01","value":3.69647},{"date":"1998-01-01","value":4.53086},{"date":"1999-01-01","value":6.63775},{"date":"2000-01-01","value":7.2665},{"date":"2001-01-01","value":5.05437},{"date":"2002-01-01","value":4.7004},{"date":"2003-01-01","value":4.45981},{"date":"2004-01-01","value":4.86844},{"date":"2005-01-01","value":6.27734},{"date":"2006-01-01","value":4.80511},{"date":"2007-01-01","value":5.97122},{"date":"2008-01-01","value":8.09096},{"date":"2009-01-01","value":7.25484},{"date":"2010-01-01","value":8.14507},{"date":"2011-01-01","value":7.58563},{"date":"2012-01-01","value":7.12298},{"date":"2013-01-01","value":6.78853},{"date":"2014-01-01","value":6.38891},{"date":"2015-01-01","value":7.37388},{"date":"2016-01-01","value":7.32986},{"date":"2017-01-01","value":7.58416},{"date":"2018-01-01","value":7.46549},{"date":"2019-01-01","value":8.81131},{"date":"2020-01-01","value":11.1563},{"date":"2021-01-01","value":11.2629}],"summary":{"latest_period":"2021-01-01","latest_value":11.2629,"max":11.2629,"mean":6.34035,"min":2.94794,"of":34,"rank":24,"trend":"rising"}}