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dc.contributor.authorWeerd H van der
dc.contributor.authorLinden AMA van der
dc.date.accessioned2012-12-12T22:48:04Z
dc.date.available2012-12-12T22:48:04Z
dc.date.issued1991-03-31
dc.identifier725502004
dc.identifier.urihttp://hdl.handle.net/10029/261755
dc.description.abstractAbstract niet beschikbaar
dc.description.abstractAn in situ experiment using an injection/withdrawal system was done with five pesticides (atrazine, 1,3-dichloropropene, dinoseb, mecoprop and propachlor) at a location in Schaijk. Pesticides and a tracer (chloride) were injected at 7 m below surface and withdrawn again at the same depth 1.5 m downstreams. Sorption of pesticides was found to be of little importance: only atrazine showed retardation by a factor of 1.3 three pesticides (1,3-dichloropropene, dinoseb and propachlor) disappeared from the system ; their halflife times were 10 d, 1.3 d and 20 d respectively. Mecoprop showed no reaction at all. The computercode PULS which was developed for the interpretation of in situ experiments proved to be appropriate for approximating sorption and tranformation constants both for the in situ experiment in Schaijk and for experiments performed earlier. With the simulation package METROPOL a good agreement was found between measured and calculated breakthrough curves.
dc.description.sponsorshipEG/DG12-Bodemkwaliteit
dc.format.extent81 p
dc.language.isoen
dc.relation.ispartofRIVM Rapport 725502004
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/725502004.html
dc.subject13nl
dc.subject91-1nl
dc.subjectpesticidesnl
dc.subjectaquifer materialsnl
dc.subjectin situ experimentsnl
dc.subjectsorption and degradationnl
dc.titleBehaviour of pesticides in aquifer materials: interpretation of an in situ experimenten
dc.title.alternativeGedrag van bestrijdingsmiddelen in de verzadigde ondergrond: interpretatie van een in situ experimentnl
dc.typeReport
dc.date.updated2012-12-12T22:48:05Z
html.description.abstractAbstract niet beschikbaar
html.description.abstractAn in situ experiment using an injection/withdrawal system was done with five pesticides (atrazine, 1,3-dichloropropene, dinoseb, mecoprop and propachlor) at a location in Schaijk. Pesticides and a tracer (chloride) were injected at 7 m below surface and withdrawn again at the same depth 1.5 m downstreams. Sorption of pesticides was found to be of little importance: only atrazine showed retardation by a factor of 1.3 three pesticides (1,3-dichloropropene, dinoseb and propachlor) disappeared from the system ; their halflife times were 10 d, 1.3 d and 20 d respectively. Mecoprop showed no reaction at all. The computercode PULS which was developed for the interpretation of in situ experiments proved to be appropriate for approximating sorption and tranformation constants both for the in situ experiment in Schaijk and for experiments performed earlier. With the simulation package METROPOL a good agreement was found between measured and calculated breakthrough curves.


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