We use cookies on our website. Some are necessary for the operation of the website. You can also allow cookies for statistical purposes. You can adjust the data protection settings or agree to all cookies directly.
Spray-drift and volatilization related pesticide residues in untreated crops grown on adjacent areas
Project
Project code: BfR-SiP-08-1322-669
Contract period: 01.05.2016
- 31.12.2017
Purpose of research: Inventory & Assessment
Spray-drift and volatilization of pesticides onto food-relevant crops grown on adjacent areas is currently not considered in the framework of consumer exposure and risk assessment. The models used so far in pesticide authorisation refer to direct exposure of consumers through directly treated commodities. As part of preliminary theoretical considerations a draft calculation model for the prediction of residue levels in indirectly exposed crops will be developed taking into account crop specifics (kind of crop, growth stage of crop), substance specifics and application specifics. Subsequently, the draft calculation model will be verified by experimental studies (drift and volatilization measurements) on representative crops and discussed concerning its applicability in pesticide authorisation procedures. Based on the results obtained in the project, conclusions will be drawn concerning the residues related to spray-drift and volatilization which are currently disregarded in consumer exposure assessment. If necessary, these aspects will in future be considered in consumer exposure and risk assessments. Furthermore, coatings on 2- and 3-dimensional targets which result from spray-drift or volatilization will be quantified. The results will be compared to predictions with existing models used in resident and bystander exposure assessment as well as in the environmental fate area to achieve synergies between different assessment areas and to improve the currently used models.
Section overview
Subjects
- Crop Production
- Crop Protection
- Toxicology