{"entity":{"iso2":"RS","iso3":"SRB","name":"Serbia","slug":"serbia"},"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":"2000-01-01","value":5.27615},{"date":"2001-01-01","value":5.27615},{"date":"2002-01-01","value":5.43537},{"date":"2003-01-01","value":5.06152},{"date":"2004-01-01","value":3.36357},{"date":"2005-01-01","value":5.5839},{"date":"2006-01-01","value":6.27554},{"date":"2007-01-01","value":3.95109},{"date":"2008-01-01","value":4.49545},{"date":"2009-01-01","value":4.06712},{"date":"2010-01-01","value":2.52756},{"date":"2011-01-01","value":2.54579},{"date":"2012-01-01","value":2.69675},{"date":"2013-01-01","value":5.19169},{"date":"2014-01-01","value":8.12378},{"date":"2015-01-01","value":10.6974},{"date":"2016-01-01","value":16.2376},{"date":"2017-01-01","value":10.7386},{"date":"2018-01-01","value":8.35484},{"date":"2019-01-01","value":9.38067},{"date":"2020-01-01","value":11.7963},{"date":"2021-01-01","value":11.7963}],"summary":{"latest_period":"2021-01-01","latest_value":11.7963,"max":16.2376,"mean":6.76697,"min":2.52756,"of":34,"rank":23,"trend":"volatile"}}