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Characteristics of dust particles abraded from pesticide treated seeds: 2. Density, porosity and chemical content
Author(s) -
Foqué Dieter,
Devarrewaere Wouter,
Verboven Pieter,
Nuyttens David
Publication year - 2017
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.4524
Subject(s) - bulk density , particle (ecology) , particle size , particle density , porosity , envelope (radar) , environmental science , ingredient , particle size distribution , ecosystem , biological system , soil science , materials science , chemistry , composite material , ecology , physics , soil water , computer science , biology , thermodynamics , food science , telecommunications , radar , volume (thermodynamics)
BACKGROUND Apart from particle size, drift of abraded seed particles during sowing is mainly affected by two other physical properties, viz. particle shape and envelope density. The impact of these abraded seed particles on the environment is highly dependable on their active ingredient content. In this study, the envelope density and chemical content of dust abraded from seeds was determined as a function of particle size for six seed species. RESULTS Envelope density and active ingredient content both change as a function of particle size. Important differences in these physico‐chemical properties were observed between the six species. Functions were fitted to the collected data to describe the physico‐chemical properties as a function of particle size. CONCLUSION The gathered physico‐chemical information is essential for the computational fluid dynamics ( CFD )‐based dust drift prediction models and can be useful for other prediction models as well as for the ongoing risk assessment of active ingredients used for seed treatment on ecosystems and ecosystem‐services. In addition, the results can help to better understand the dust drift phenomenon and to develop mitigation strategies. © 2017 Society of Chemical Industry