{"entity":{"iso2":"BE","iso3":"BEL","name":"Belgium","slug":"belgium"},"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":30.4541},{"date":"1993-01-01","value":33.7013},{"date":"1994-01-01","value":33.6331},{"date":"1995-01-01","value":33.1009},{"date":"1996-01-01","value":32.6784},{"date":"1997-01-01","value":32.0623},{"date":"1998-01-01","value":32.6119},{"date":"1999-01-01","value":34.6391},{"date":"2000-01-01","value":35.0505},{"date":"2001-01-01","value":34.0853},{"date":"2002-01-01","value":35.5995},{"date":"2003-01-01","value":34.3704},{"date":"2004-01-01","value":29.8626},{"date":"2005-01-01","value":29.9724},{"date":"2006-01-01","value":27.7145}],"summary":{"latest_period":"2006-01-01","latest_value":27.7145,"max":35.5995,"mean":32.6357,"min":27.7145,"of":34,"rank":5,"trend":"falling"}}