Skip to main content

Pesticides in Fresh Potatoes Sold in Farmers’ Markets in Alberta, Canada

Abstract

Fresh potatoes (228 samples) from 34 farmers’ markets in Alberta were analyzed for 29 pesticides. Residues of three different pesticides were found in the samples tested with chlorpropham being most frequently detected (n = 13) at concentrations ranging from 15 to 7,600 μg kg−1. Azoxystrobin (n = 11) and imidacloprid (n = 8) were found at concentrations ranging from 0.6 to 5.1 and 15–31 μg kg−1, respectively. All pesticide concentrations were below Canadian maximum residue limits as established for potatoes. No pesticide residues were detected in 23 potato samples obtained from certified organic farmers.

This is a preview of subscription content, access via your institution.

References

  1. Alberta Agriculture and Rural Development (2010) Alberta approved farmers’ markets. Available via internet. http://www1.agric.gov.ab.ca/$Department/deptdocs.nsf/All/apa6620. Accessed 24 Jun 2010

  2. Canadian Food Inspection Agency [CFIA] (2006) Report on pesticides, agricultural chemicals, environmental pollutants and other impurities in agri-food commodities of plant origin, fiscal year 2004/2005, vol 2. Available via internet. http://www.inspection.gc.ca/english/fssa/microchem/resid/2004-2005/plaveg_e.shtml. Accessed 24 Jun 2010

  3. European Communities (2002) Commission decision of 12 August 2002 implementing council directive 96/23/EC concerning the performance of analytical methods and the interpretation of results, 2002/657/EC. OJ L221:8–36

  4. Granby K, Andersen JH, Christensen HB (2004) Analysis of pesticides in fruit, vegetables and cereals using methanolic extraction and detection by liquid chromatography-tandem mass spectrometry. Anal Chim Acta 520:165–176

    Article  CAS  Google Scholar 

  5. Health Canada (2010) List of maximum residue limits regulated under the pest control products act. Available via internet. http://www.hc-sc.gc.ca/cps-spc/alt_formats/pdf/pest/part/protect-proteger/food-nourriture/mrls-lmr-eng.pdf. Accessed 28 Jan 2011

  6. Hogenboom AC, Hofman MP, Kok SJ, Niessen WMA, Brinkman UAT (2000) Determination of pesticides in vegetables using large-volume injection column liquid chromatography-electrospray tandem mass spectrometry. J Chromatogr A 892:379–390

    Article  CAS  Google Scholar 

  7. Jansson C, Pihlstrom T, Osterdahl BG, Markides KE (2004) A new multi-residue method for analysis of pesticide residues in fruit and vegetables using liquid chromatography with tandem mass spectrometric detection. J Chromatogr A 1023:93–104

    Article  CAS  Google Scholar 

  8. Leandro CC, Hancock P, Fussell RJ, Keely BJ (2007) Ultra-performance liquid chromatography for the determination of pesticide residues in foods by tandem quadrupole mass spectrometry with polarity switching. J Chromatogr A 1144:161–169

    Article  CAS  Google Scholar 

  9. Liu M, Hashi Y, Song Y, Lin JM (2005) Simultaneous determination of carbamate and organophosphorus pesticides in fruits and vegetables by liquid chromatography-mass spectrometry. J Chromatogr A 1097:183–187

    Article  CAS  Google Scholar 

  10. Okihashi M, Kitagawa Y, Akutsu K, Obana H, Hori S (2002) Determination of seventeen pesticide residues in agricultural products by LC/MS. J Food Hyg Soc Jpn 43:389–393

    Article  CAS  Google Scholar 

  11. Ortelli D, Edder P, Corvi C (2004) Multiresidue analysis of 74 pesticides in fruits and vegetables by liquid chromatography-electrospray-tandem mass spectrometry. Anal Chim Acta 520:33–45

    Article  CAS  Google Scholar 

  12. United States Department of Agriculture [USDA] (2009) Pesticide data program annual summary, calendar year 2008. Available via internet. http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELPRDC5081750. Accessed 28 Jan 2011

  13. Wang J, Chow W, Leung D (2010) Applications of LC/ESI-MS/MS and UHPLC QqTOF MS for the determination of 148 pesticides in fruits and vegetables. Anal Bioanal Chem 396:1513–1538

    Article  CAS  Google Scholar 

Download references

Acknowledgments

The authors thank Ryan Pawsey, Elizabeth MacNeil, Angela Morrison, Ambrose Law, Elio Moreno, Lily Gu, and Svetlana Selina for the collection of samples. The technical assistance of Renata Limanowka, Desmond Tang, Joy Komarnicki, and Marlise Siegenthaler is gratefully acknowledged.

Author information

Affiliations

Authors

Corresponding author

Correspondence to Thomas S. Thompson.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Thompson, T.S., Dimock, R., Bradbury, R.W. et al. Pesticides in Fresh Potatoes Sold in Farmers’ Markets in Alberta, Canada. Bull Environ Contam Toxicol 87, 580 (2011). https://doi.org/10.1007/s00128-011-0408-7

Download citation

Keywords

  • Potato
  • Pesticide
  • LC–MS/MS
  • Farmers’ market