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dc.contributor.authorSwinderen EC van
dc.contributor.authorWillems WJ
dc.contributor.authorDaatselaar CHG
dc.contributor.authorHaan T de
dc.contributor.authorHoop DW de
dc.contributor.otherRijksinstituut voor Volksgezondheid en Milieuhygiene RIVMen_US
dc.contributor.otherLandbouw Economisch Instituut LEI-DLOen_US
dc.date.accessioned2007-03-09T17:13:45Z
dc.date.available2007-03-09T17:13:45Z
dc.date.issued1994-07-31en_US
dc.identifier714901002en_US
dc.identifier.urihttp://hdl.handle.net/10029/10355
dc.description.abstractIn 1992 a three-year monitoring program was started to assess the quality of the upper groundwater in the sandy regions of the Netherlands as a result of using fertilizers and manure in agriculture. This program is a cooperative effort of the National Institute of Public Health and Environmental Protection (RIVM) and Agricultural Economics Research Institute (LEI-DLO). From march to august 1992 the upper groundwater from 93 farms was sampled and analyzed for chloride, nitrate, potassium, dissolved organic carbon and phosphate (ortho and total). The report contains the monitoring results of the first year of the program. Mean nitrate and potassium concentrations exceed quality objectives, especially under grassland and silage maize on cattle farms. Nitrate and potassium concentrations in the groundwater of arable farms were generally lower than of cattle farms but on average above quality objectives. In the reports to follow a more detailed analyses will be carried out and the monitoring strategy will be evaluated with a view to the desirability of detecting trends in groundwater quality in future.
dc.format.extent5298697 bytes
dc.format.mimetypeapplication/pdf
dc.language.isonlen_US
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVMen_US
dc.relation.ispartofseriesRIVM Rapport 714901002en_US
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/714901002.htmlen_US
dc.subject.othergroundwateren
dc.subject.otherqualityen
dc.subject.othermonitoringen
dc.subject.othersandy soilen
dc.subject.otheragricultureen
dc.subject.otherfertilizersen
dc.subject.othermanureen
dc.subject.othernutrientsen
dc.subject.othernitratesen
dc.subject.otherphosphatesen
dc.subject.otherchloridesen
dc.subject.otherpotassiumen
dc.subject.othernetherlandsen
dc.subject.otherdocen
dc.subject.othergrondwaternl
dc.subject.otherkwaliteitnl
dc.subject.othermonitoringnl
dc.subject.otherzandgrondnl
dc.subject.otherlandbouwnl
dc.subject.othermeststofnl
dc.subject.othermestnl
dc.subject.othernutrientennl
dc.subject.othernitraatnl
dc.subject.otherfosfaatnl
dc.subject.otherchloridenl
dc.subject.otherkaliumnl
dc.subject.othernederlandnl
dc.titleMeetprogramma Kwaliteit Bovenste Grondwater Landbouwbedrijven; resultaten eerste bemonstering 1992en_US
dc.title.alternative[A monitoring program of the quality of the upper groundwater at agricultural land sites ; results of the first year 1992.]en_US
dc.contributor.departmentLBGen_US
dc.contributor.departmentLEI-DLOen_US
refterms.dateFOA2018-12-18T09:02:50Z
html.description.abstractIn 1992 a three-year monitoring program was started to assess the quality of the upper groundwater in the sandy regions of the Netherlands as a result of using fertilizers and manure in agriculture. This program is a cooperative effort of the National Institute of Public Health and Environmental Protection (RIVM) and Agricultural Economics Research Institute (LEI-DLO). From march to august 1992 the upper groundwater from 93 farms was sampled and analyzed for chloride, nitrate, potassium, dissolved organic carbon and phosphate (ortho and total). The report contains the monitoring results of the first year of the program. Mean nitrate and potassium concentrations exceed quality objectives, especially under grassland and silage maize on cattle farms. Nitrate and potassium concentrations in the groundwater of arable farms were generally lower than of cattle farms but on average above quality objectives. In the reports to follow a more detailed analyses will be carried out and the monitoring strategy will be evaluated with a view to the desirability of detecting trends in groundwater quality in future.


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