{"entity":{"iso2":"BE","iso3":"BEL","name":"Belgium","slug":"belgium"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"average-ammonium-concentration-in-freshwater","source":"European Environment Agency (2023) \u2013 with minor processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/average-ammonium-concentration-in-freshwater","title":"Average ammonium concentration in freshwater","unit":"milligrams per litre"},"observations":[{"date":"1999-01-01","value":0.188533},{"date":"2000-01-01","value":0.212301},{"date":"2001-01-01","value":0.291552},{"date":"2002-01-01","value":0.3042},{"date":"2003-01-01","value":0.406059},{"date":"2004-01-01","value":0.207996},{"date":"2005-01-01","value":0.137489},{"date":"2006-01-01","value":0.26466},{"date":"2007-01-01","value":0.283724},{"date":"2008-01-01","value":0.212428},{"date":"2009-01-01","value":0.135441},{"date":"2010-01-01","value":0.0985887},{"date":"2011-01-01","value":0.169694},{"date":"2012-01-01","value":0.191681},{"date":"2013-01-01","value":0.252996},{"date":"2014-01-01","value":0.147424},{"date":"2015-01-01","value":0.124146},{"date":"2016-01-01","value":0.100869},{"date":"2017-01-01","value":0.100869},{"date":"2018-01-01","value":0.100869},{"date":"2019-01-01","value":0.100869},{"date":"2020-01-01","value":0.100869},{"date":"2021-01-01","value":0.100869}],"summary":{"latest_period":"2021-01-01","latest_value":0.100869,"max":0.406059,"mean":0.184092,"min":0.0985887,"of":32,"rank":12,"trend":"falling"}}