Development of a method for measuring exposure of residents and bystanders following high crop application of plant protection products

Authors

  • Katrin Ahrens Julius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Application Techniques in Plant Protection, Braunschweig, Germany.
  • Markus Röver Federal Office of Consumer Protection and Food Safety, Braunschweig, Germany.
  • Enrico Peter German Federal Institute for Risk Assessment, Department Pesticides Safety, Berlin, Germany.
  • Gabor Molnar Julius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Application Techniques in Plant Protection, Braunschweig, Germany.
  • Sabine Martin German Federal Institute for Risk Assessment, Department Pesticides Safety, Berlin, Germany.
  • Jens Karl Wegener Julius Kühn Institute (JKI) – Federal Research Centre for Cultivated Plants, Institute for Application Techniques in Plant Protection, Braunschweig, Germany.

DOI:

https://doi.org/10.5073/JfK.2023.05-06.03

Keywords:

exposure, drift measurement, residents, bystander, risk assessment, drift reduction

Abstract

Residents and bystanders may be exposed to spray drift during application of plant protection products. The assessment of possible risks is carried out on the basis of a harmonized exposure model of EFSA. For orchards and vineyards, there are currently still gaps in the assessment. These data gaps have been addressed by BVL, JKI and BfR in a joint project. The development of a robust method to perform reproducible field trials was a core element of the project. The fluorescent dye pyranine served in the trials as a readily detectable substitute for real plant protection products. In the course of several years of optimization, suitable clothing was identified for mannequins representing adults and children. Tyvek® cover­alls proved suitable for detecting even small amounts of dye with high accuracy. The development process provides the basis for a JKI guideline for preparing and conducting field trials. The different development stages are described here. The data generated with the developed method will enable EFSA to improve the exposure assessment models.

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Published

2023-05-26

Issue

Vol. 75 No. 05-06 (2023): Spray drift and exposition

Section

Article in Special Issue

License

Copyright (c) 2023 Katrin Ahrens, Markus Röver, Enrico Peter, Gabor Molnar, Sabine Martin, Jens Karl Wegener

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