Persistence of chlorpropham (CIPC) in the concrete flooring of potato stores

Douglas, L. , MacKinnon, G. , Cook, G. , Duncan, H., Briddon, A. and Seamark, S. (2018) Persistence of chlorpropham (CIPC) in the concrete flooring of potato stores. Potato Research, 61(4), pp. 353-364. (doi: 10.1007/s11540-018-9390-3)

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The loss of the sprout suppressant, chlorpropham (CIPC), to the fabric of potato stores is currently of concern due to the risk of potential cross contamination of other crops subsequently housed in these stores. HPLC UV/VIS and GCMS methods were successfully employed to detect CIPC in the concrete flooring of research and commercial potato stores with histories of between 1 and 26 years of use. The concentrations in identical research stores, with different numbers of applications, were in the range 0.58–5.7 and 3.4–112 μg g−1, suggesting the magnitude of contamination was influenced by the number of applications. Commercial store A, with a history of 18 seasons of applications (estimate of total CIPC applied 2040 kg), had concentrations varying between 6 and 48 μg g−1 in the top three centimetres, with more than 92% within the top centimetre. In contrast, commercial store B, with a history of less than five seasons of applications (estimate of total CIPC applied 319 kg), had concentrations varying between 0.58 and 304 μg g−1 in the top four centimetres, with less than 47% within the top centimetre. The difference in depth distributions between A and B may be due to the structural integrity of the concrete, which was much poorer in B. CIPC was persistent in all stores irrespective of the total quantities of CIPC applied and date of the final application.

Item Type:Articles
Additional Information:This research was funded by the Agriculture and Horticulture Development Board (AHDB) - Potatoes (Project Code: 115R485). (AGR:IND606215115)
Glasgow Author(s) Enlighten ID:MacKinnon, Dr Gillian and Cook, Professor Gordon and Duncan, Dr Henry and Douglas, Leisa Antoinette
Authors: Douglas, L., MacKinnon, G., Cook, G., Duncan, H., Briddon, A., and Seamark, S.
College/School:College of Science and Engineering > School of Chemistry
College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Potato Research
ISSN (Online):1871-4528
Published Online:07 July 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Potato Research 61:353–364
Publisher Policy:Reproduced under a Creative Commons License

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