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A system approach towards prediction of food safety hazards: Impact of climate and agrichemical use on the occurrence of food safety hazards

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  • Marvin, Hans J.P.
  • Bouzembrak, Yamine

Abstract

In this study, we aimed to demonstrate the aptness of a system approach to predict the level of contamination in a given agricultural product. As a showcase, the impact of climate and agrichemical use on the occurrence of food safety hazards in feed of dairy cows in the Netherlands was used. Data on chemical hazards in dairy cows' feed in the Netherlands for the years 2000 to 2013 were retrieved from the Dutch monitoring program KAP (Quality Program for Agricultural Products). Climate data (17 variables) and agrichemical usage figs. (6 variables) for the Netherlands were obtained from the NOAA's National Centers for Environmental Information, the European Commission Joint Research Center's Agri4Cast database, and FAO's FAOSTAT. A Bayesian Network (BN) was constructed with this data and optimized for the prediction of the contamination level. The overall accuracy of prediction of the level of contamination in feed was 90.3%. Sensitivity analysis demonstrated that many climate and agrichemical variables contributed to the prediction; however, their individual contribution was generally small. The applicability of the BN was demonstrated in more detail for grass and maize as feed components. The observed trends in contamination of these crops were accounted for by climate and agrichemical variables, with the impact varying amongst the specific variables and commodities. The variables with the highest impact were “days of precipitations in a month with ≥ 2.5 mm” and “annual use of herbicides".

Suggested Citation

  • Marvin, Hans J.P. & Bouzembrak, Yamine, 2020. "A system approach towards prediction of food safety hazards: Impact of climate and agrichemical use on the occurrence of food safety hazards," Agricultural Systems, Elsevier, vol. 178(C).
  • Handle: RePEc:eee:agisys:v:178:y:2020:i:c:s0308521x19302768
    DOI: 10.1016/j.agsy.2019.102760
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    References listed on IDEAS

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    1. Lee, Chang-Ju & Lee, Kun Jai, 2006. "Application of Bayesian network to the probabilistic risk assessment of nuclear waste disposal," Reliability Engineering and System Safety, Elsevier, vol. 91(5), pages 515-532.
    2. David J. Hand & Keming Yu, 2001. "Idiot's Bayes—Not So Stupid After All?," International Statistical Review, International Statistical Institute, vol. 69(3), pages 385-398, December.
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    Cited by:

    1. Jin, Cangyu & Bouzembrak, Yamine & Zhou, Jiehong & Liang, Qiao & Marvin, Hans, 2021. "Drivers of Food Safety Risks in Aquatic Products in China: A Bayesian Network approach," 2021 Annual Meeting, August 1-3, Austin, Texas 313965, Agricultural and Applied Economics Association.

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