Modelling non-systemic pesticide residues in fruits with initial deposit variability and weather effects

Huo, R., Salazar, J. D., Hyder, K. ORCID: and Xu, X.-M. (2007) Modelling non-systemic pesticide residues in fruits with initial deposit variability and weather effects. Food Additives and Contaminants, 24 (11). pp. 1257-1267. ISSN 0265-203X

Full text not available from this repository. (Request a copy)


A flexible and generic model was developed to predict the decline of residues of a non-systemic pesticide for both single and multi-spray situations as well as for different tree canopy zones. The model predicts not only the average residue levels, but also the confidence interval of the residues through either a deterministic or a stochastic approach. This generic model includes several key aspects of residue fates in the environment: initial deposit, physical loss and growth dilution. The model considers a tree canopy in three distinct zones for which initial deposition of pesticides may differ. In addition to predicting the average residue within each zone, it also estimates the 95 and 99% confidence intervals of residues on individual fruit within each zone. For the purpose of evaluation, this model was parameterized specifically for captan, one of the most important non-systemic fungicides used to control disease in horticultural crops. The observed average initial deposit for each zone was used in the evaluation. The overall correlation between predicted average residues and those observed on apple fruit in two applications was 0.93. Confidence intervals were also predicted accurately.

Item Type: Article
Additional Information: Funding Information: This research was funded jointly by the Biotechnology and Biological Sciences Research Council and Syngenta.
Uncontrolled Keywords: contact pesticides,deterministic models,predicting,residue dissipation,food science,chemistry (miscellaneous),chemistry(all),toxicology,public health, environmental and occupational health,health, toxicology and mutagenesis,sdg 3 - good health and well-being ,/dk/atira/pure/subjectarea/asjc/1100/1106
Faculty \ School: Faculty of Science > School of Environmental Sciences
UEA Research Groups: Faculty of Science > Research Groups > Collaborative Centre for Sustainable Use of the Seas
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 25 Nov 2023 03:24
Last Modified: 28 Nov 2023 03:01
DOI: 10.1080/02652030701329926

Actions (login required)

View Item View Item