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MOEW Management of Pesticides Controls in UAE: Evaluation of Pesticides Quality and Monitoring of Residues in Fruits and

This study explores the perspective of the Ministry of Environment and Water in managing tightening controls on pesticides in the UAE. It focuses on evaluating the quality of pesticides and monitoring pesticide residues in fruits and vegetables in UAE markets. The objective is to ensure the safety of food and develop surveillance programs for pesticide residues.

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MOEW Management of Pesticides Controls in UAE: Evaluation of Pesticides Quality and Monitoring of Residues in Fruits and

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  1. "The perspective of the MOEW in the management of tightening controls on pesticides in the framework of strategic plans of UAE" The third Topic Evaluation of Pesticides Quality & Monitoring of Pesticide residues in Fruits & Vegetables in UAE Markets. Pesticides Laboratories

  2. INTRODUCTION Scientific research over the last decades has shown that a diet rich in fruits and vegetables is protective against many cancers and lowers the occurrence of coronary heart disease. This recognition of the importance of routine consumption of fresh fruits and vegetables, together with a marked increase in the year round availability of fresh fruits and vegetables from a global market, has contributed to the substantial increase in consumption of fresh fruits and vegetables over the past two decades. However, the recent increase in reports of food borne illness associated with fresh fruits and vegetables has raised concerns from public health agencies and consumers about the safety of these products. Pesticides Laboratories

  3. OBJECTIVES • To ensure the safety of food (fruits & vegetables ) as far as pesticides contamination is concerned • planning of surveillance programmes for pesticide residues in • the UAE food supply and the evaluation of the results; • • procedures for sampling, sample processing, new methods of • analysis, the assessment of variability of pesticide residues in • fruits &vegetables and related issues. Pesticides Laboratories

  4. Surveillance programme The pesticide residues surveillance programme is designed to enable us to check: • that specified pesticide maximum residue levels (MRLs ) are being respected & compiled with ; • that users of pesticides are complying with conditions of use specified in the authorisation; and • that dietary intakes of residues are within acceptable limits. Pesticides Laboratories

  5. Ionic Compounds Food Borne Exposures Contaminants Pesticides Mycotoxins Veterinary Drugs Pesticides Laboratories

  6. Cancer Food borne Illness Mutation Infertility Brain Behavior Pesticides Laboratories

  7. Ultimately, the quality and safety of food depends on the efforts of every one involved in the complex chain of agriculture production, processing, transport, food production and consumption. World Health Organization (WHO) views food safety as a shared responsibility from farm to fork. Pesticides Laboratories

  8. This monitoring study was conducted in the Central laboratories, Ministry of Environment and Water, Al Ain, which are accredited by UKAS according to ISO/IEC17025 :2005 for pesticide residues analysis in fruits and vegetables. Pesticides Laboratories

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  12. International Accreditation PL is Accredited by UKAS (United Kingdom Accreditation Services) as per the requirements of (ISO/ IEC 17025) since 2004. PL is the 1st Laboratory in the middle east & GCC accredited in the field of Pesticides Formulations Analysis and the Analysis of Pesticides Residues in Fruits & Vegetables. (scope of accreditation covers around 200 Pesticides). In the PF there is a strong similarity in the method used in PFL and CIPAC methodology. Pesticides Laboratories

  13. Fruits and Vegetables Samples • PRL Staff are conducting monitoring surveys for most commodity types of imported fresh Fruits and Vegetables (mainly from Guaifat Entry point & Agricultural Quarantine Centres) • The Annual Average Samples Number is more than 2500 & is in the increase • PRL can test now around 300 pesticides in each sample (to be increased to around 400 pesticides later this year). Pesticides Laboratories

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  15. Methodology The ultimate goal in fair practice in international trade depends, among other things, on the reliability of analytical results. This in turn, particularly in pesticide residue analysis, depends not only on the availability of reliable analytical methods, but also on the experience of the analyst and on the maintenance of ‘good practice in the analysis of pesticides’. These include good analytical practice and may be considered in three inter-related parts: The Analyst Basic Resources The Analysis The requirements for facilities, management, personnel, quality assurance and quality control, documentation of results and raw data, and relevant subjects, which are considered as prerequisites for obtaining reliable and traceable results, are described in general in the ISO/IEC 17025 Standard (2005) and in a series of OECD, GLP Guidance Documents, in the corresponding national laws and regulations Pesticides Laboratories

  16. Methods of Pesticide Residues Analysis Multi-residues Analysis in Food Stuffs based on modern GC techniques & follows protocols as described inSANCO Pesticides Laboratories

  17. Gas & Liquid Chromatography: • GC/PFPD • GC/MSD • GC/MSD+NPD • GC/MSD+NPD+ECD • GC/TSD+FID • GC/ECD+NPD • GC/FID • HPLC • LC/MS/Fluorescene • LC/MSMS • Other equipments used for Homogenization, Extraction, Concentration , filtration and Clean-up of Sample Extracts. • Staff: 2-PhD, 1-MSc. and 4 BSc.(total 7) Pesticides Laboratories

  18. The use of QuEChERS (pronounced “Catchers”) method • Quick, Easy, Cheap, Effective, Robust and Safe • Sample Preparation method developed jointly by US FDA and EU Food Regulatory Agencies • Methodology for simplified extraction of a large number of pesticide residues in fruits and vegetables • QuEChERS is a fast sample preparation method for screening for analytes of interest, not for concentrating samples • QuEChERS is still in it’s “Infancy”; being adopted worldwide Pesticides Laboratories Page 18

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  20. 400/500 pesticides GC/MSD, GC/MSMS, LC/MSMS QuEChERS Routine-Spectrum Single Pesticides New Methods Up to 1.000 Compounds! 170 pesticides GC/MSD LC/MS Ethyl Acetate Pesticides Laboratories

  21. Results: The results of the analyses of 8245 samples is shown in the table below covering the period from 2005-2010. In this study about 28 types of fruits and 60 types of vegetables which mean 88 types of commodities from more than 30 countries from different parts of the world were analyzed for pesticide residues.. Pesticides Laboratories

  22. The results shown were carried out using MRM method using LC-MS, GC-MS, GC-PFPD/TSD/NPD/µECD. In average more than 250 pesticides and their metabolites covering all the major classes organochlorines, organophosphorus and carbamates were tested for. For most of the pesticides the reporting limit was 0.01-0.02 mg/kg. Pesticides Laboratories

  23. For our 2010 surveillance programme we are pleased to report that we have expanded the range of pesticides that we look for in our fruit and vegetables surveys up to 323 and have reduced the reporting limit in most cases to 0.01 mg/kg. In 2009 the maximum number of pesticides that we looked for in any survey was 136 with a routine reporting limit of 0.02mg/kg. * For this reason we may in future find more residues and multi-residues in single samples. Pesticides Laboratories

  24. Summary of Results (2005-2010) Pesticides Laboratories

  25. 1-There was an annual increase of analyzed samples using the luke method, from 701 in 2005 to 820 in 2007 reaching 3031 in 2010 with a percentage increase of 332 % compared to 2005. Pesticides Laboratories

  26. 2.There was also an increase in targeted pesticides from 76 in 2005 to 103 in 2007 & then to 323 pesticides in 2010 equivalent to a 325 % increase. Pesticides Laboratories

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  29. FOOD HANDLING TIPS • While pesticide residues on and in food are typically at very low levels, there are ways we can further reduce them: • Rinse fruit and vegetables thoroughly under running water. Running water has an abrasive effect that soaking doesn't have. Also some pesticides are absorbed into fruits and vegetables, some are present on the surface. Washing removes most surface waxes and residues, along with dirt and bacterial contamination. Peeling fruits and vegetables also removes surface residues and some conjugated residues. (but remember that some nutrients and fiber may be lost in peeling) • Some residues are concentrated only in outer leaves so removal of outer leaves in cabbage, lettuce etc. can remove residues also • Cooking, canning, and other food processing methods can reduce some (not all) residues. • Eating a variety of foods ensures balanced nutrient uptake; further it eliminates likelihood of exposure to a single residue and its bio-magnification(5-a day Pesticides Laboratories

  30. Thank you I would like to thank All attendees for their attention Pesticides Laboratories

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