Suchergebnisse

Mit der Zulassung von Pflanzenschutzmitteln können Risikominderungsmaßnahmen zum Schutz vor Einträgen der Pflanzenschutzmittel in Oberflächengewässer über Oberflächenabfluss (Runoff) festgesetzt werden. Ziel dieses Vorhabens war es, bestehende und potentielle Minderungsmaßnahmen hinsichtlich Reduktionsleistung, Praktikabilität und Kontrollierbarkeit zu bewerten und Vorschläge zu erarbeiten, wie geeignete Maßnahmen in der quantitativen Risikoabschätzung berücksichtigt werden können. Hierzu wurde in wissenschaftlicher Literatur, grauer Literatur und Beratungsunterlagen nach Minderungsmaßnahmen, die Pflanzenschutzmittel-Einträge durch Oberflächenabfluss und Erosion reduzieren könnten, recherchiert. Relevante Maßnahmen wurden in Befragungen von Fachleuten hinsichtlich ihrer Wirtschaftlichkeit, derzeitigen Verbreitung und zukünftigem Verbreitungspotenzial bewertet. Die danach priorisierten Maßnahmen sind: Anlage von grasbewachsenen Filterstreifen, Direktsaat, Mulchsaat, verschiedene nichtwendende Bodenbearbeitungsmaßnahmen und Anlage von Querdämmen auf dem Feld. Die Reduktionsleistung der priorisierten Maßnahmen wurde dann auf Basis von quantitativen Daten in verschiedenen publizierten Studien und mit Hilfe statistischer Methoden (z.B. Box- und Scatterplots oder multiple lineare Regressionen) ausgewertet. Dabei bestätigte sich die Einschätzung der befragten Fachleute, dass sowohl die Anlage von Filterstreifen (kulturunabhängig) aber auch Querdämmen (speziell für Kartoffeln) expositionsmindernd auf den Eintragspfad Runoff in Oberflächengewässer wirken und so sinnvolle Risikominderungsmaßnahmen darstellen. Bei den Maßnahmen der konservierenden Bodenbearbeitung und der Direktsaat zeigten die ausgewerteten Daten ausgesprochen variable Ergebnisse hinsichtlich der Reduktionswirkung auf Runoff, bei denen man den Erfolg einer Maßnahme nicht an der mittleren Effektgröße, dem Median, nachweisen konnte. Infolgedessen können im vorliegenden Bericht nur zwei Maßnahmen für eine Verwendung in der quantitativen Umweltexpositionsbewertung empfehlen: die Anlage von grasbewachsenen Filterstreifen am Feldrand und das Anlegen von Querdämmen auf dem Feld. Empfehlungen zur Berücksichtigung von weiteren bodenkonservierenden Maßnahmen im Feld (z.B. Mulchsaat, Direktsaat, Streifensaat) in der Umweltexpositionsabschätzung müssen aufgrund der lückenhaften Datenlage und nicht eindeutigen Ergebnisse ausbleiben. Ein unterstützendes Potential zu einer der empfohlenen Maßnahme wird diesen Maßnahmen dennoch zugesprochen.

International audience ; Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

International audience ; Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

International audience ; Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

International audience ; Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.

Groundwater monitoring is recommended as a higher-tier option in the regulatory groundwater assessment of crop protection products in the European Union. However, to date little guidance has been provided on the study designs. The SETAC EMAG-Pest GW group (a mixture of regulatory, academic, and industry scientists) was created in 2015 to establish scientific recommendations for conducting such studies. This report provides recommendations for study designs and study procedures made by the Society of Environmental Toxicology and Chemistry (SETAC) Environmental Monitoring Advisory Group on Pesticides (EMAG-Pest). Because of the need to assess the vulnerability to leaching in both site selection and extrapolating study results, information on assessing vulnerability to leaching is also a major topic in this report. The design of groundwater monitoring studies must consider to which groundwater the groundwater quality standard is applicable and the associated spatial and temporal aspects of its application, the objective of the study, the properties of the active substance and its metabolites, and site characteristics. This limits the applicability of standardised study designs. The effect of the choice of groundwater to which the water quality guideline is applied on study design is illustrated and examples of actual study designs are presented.