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Series / Report no.
Open Access
Type
Report
Language
en
Date
2004-09-21
Research Projects
Organizational Units
Journal Issue
Title
Pesticide emissions from
greenhouses
Translated Title
Emissies van bestrijdingsmiddelen uit
kassen
Published in
Abstract
Er zijn slechts weinig metingen van
bestrijdingsmiddelen in de lucht in en rondom tuinbouwkassen die bruikbaar
zijn voor acute risicoschattingen voor omwonenden. Daarom heeft het RIVM
een bestaande blootstellingsmodule in USES, een computerprogramma voor
integrale risicobeslissingen van overheden, verbeterd. Hiermee kunnen
concentraties in de lucht tot een afstand van 20 m van de kas worden
geschat. Dergelijke schattingen worden belangrijker omdat meer mensen in
Nederland in de nabijheid van kassen kunnen komen te wonen. De
moduleaanpassingen verbeteren naar verwachting met name de
concentratieschattingen gedurende de eerste uren direct na de toepassing.
In een vervolgonderzoek, waarin het RIVM participeert, zullen chemische
analyses worden uitgevoerd om de module te staven. Alleen dan kan een
verdere aanpassing en verfijning plaatsvinden van de module die de complexe
en causale keten in kaart brengt van het gebruik van bestrijdingsmiddelen,
de depositie en vervluchtiging in de kas en tenslotte de ventilatie van
resterende hoeveelheden naar buiten. De verbeterde module wordt ingebouwd
in het risicobeoordelings-systeem USES 5.0.
There are very few measurements of aerial pesticide concentrations nearby greenhouses, useful for human risk assessments. Therefore, RIVM has improved a computer module in USES, an integral risk-decision system for authorities, for assessing the acute environmental exposure. The exposure of nearby residents can thus be calculated up to a distance of 20 m. Such calculations will be increasingly important in the Netherlands, as more inhabitants will live nearby greenhouses. Expectations are that the module adaptations will improve the aerial pesticide calculations, particularly within the first few hours after the application. A follow-up experiment, in which RIVM participates, will focus on chemical analyses under controlled greenhouse conditions. Only then, further adjustments and refinements of this module, dealing with the complex causal chain of pesticide use, deposition and volatilisation in the greenhouse and the ventilation to the surrounding air, can be made. The improved module will be incorporated in the risk assessment system USES 5.0.
There are very few measurements of aerial pesticide concentrations nearby greenhouses, useful for human risk assessments. Therefore, RIVM has improved a computer module in USES, an integral risk-decision system for authorities, for assessing the acute environmental exposure. The exposure of nearby residents can thus be calculated up to a distance of 20 m. Such calculations will be increasingly important in the Netherlands, as more inhabitants will live nearby greenhouses. Expectations are that the module adaptations will improve the aerial pesticide calculations, particularly within the first few hours after the application. A follow-up experiment, in which RIVM participates, will focus on chemical analyses under controlled greenhouse conditions. Only then, further adjustments and refinements of this module, dealing with the complex causal chain of pesticide use, deposition and volatilisation in the greenhouse and the ventilation to the surrounding air, can be made. The improved module will be incorporated in the risk assessment system USES 5.0.
Description
Publisher
Sponsors
VROM-DGM-BWL