scholarly journals Pesticide Residues in Honey from the Major Honey Producing Forest Belts in Ghana

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Godfred Darko ◽  
Jonah Addai Tabi ◽  
Michael Kodwo Adjaloo ◽  
Lawrence Sheringham Borquaye
Keyword(s):  
European Union ◽  
Health Risk ◽  
Pesticide Residues ◽  
Synthetic Pyrethroids ◽  
Organophosphate Pesticide ◽  
The European Union ◽  
Safe Method ◽  
Pesticides Residues ◽  
Maximum Residue Limits ◽  
Forest Belts

Concentrations of pesticides residues in honey sampled from the major honey producing forest belts in Ghana were determined. Samples were purposively collected and extracted using the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method and analysed for synthetic pyrethroids, organochlorine, and organophosphate pesticide residues. Aldrin, γ-HCH, β-HCH, ∑endosulfan, cyfluthrin, cypermethrin, deltamethrin, permethrin methoxychlor, ∑DDT, chlorpyrifos, fenvalerate, malathion, dimethoate, and diazinon were all detected at the concentration of 0.01 mg/kg, while cyfluthrin and permethrin were detected at mean concentrations of 0.02 and 0.04 mg/kg, respectively. All the pesticide residues detected were very low and below their respective maximum residue limits set by the European Union. Hence, pesticide residues in honey samples analyzed do not pose any health risk to consumers.

scholarly journals Epidemiological Study of Pesticide Poisoning in Domestic Animals and Wildlife in Portugal: 2014–2020

2021 ◽  
Vol 7 ◽  
Author(s):  
Andreia Grilo ◽  
Anabela Moreira ◽  
Belmira Carrapiço ◽  
Adriana Belas ◽  
Berta São Braz
Keyword(s):  
European Union ◽  
Rural Areas ◽  
Domestic Animals ◽  
Wild Animals ◽  
The European Union ◽  
Red Foxes ◽  
Domestic Species ◽  
Pesticides Residues ◽  
Pharmacology And Toxicology ◽  
Layer Chromatography

Nowadays the intentional poisoning of domestic and wild animals is a crime in the European Union (EU), but as in the past the poison is still used in rural areas of a number of European countries to kill animals that were considered harmful for human activities. From January 2014 up until October 2020, the Laboratory of Pharmacology and Toxicology of the Faculty of Veterinary Medicine (LFT-FMV) has done the analytical detection of poisoning substances in 503 samples of wildlife and domestic animals and pesticides residues were found in 239 of the samples analyzed. In this retrospective study, toxicology results from domestic species (dog, cat, sheep, cows, and horses), wildlife species (red foxes, birds of prey, lynx, and wild boar), and food baits, are presented. During this period the samples analyzed at the LFT-FMV, were received from all over the country. Analytical detections were performed via solvent extraction followed by thin layer chromatography. Molluscicides (47%, n = 109) and Carbamates (24%, n = 57) were found to be the first category of pesticides involved in intoxications, in both domestic and wild animals, followed by rodenticides (13%, n = 30)—in this group second and third generation, were the most represented; Strychnine is the third (11%, n = 26) even though this pesticide has been banned in Portugal since 1988 and in the European Union since 2006 and finally Organophosphates (5%, n = 11) in the small number. This study allowed to realize that a great number of positive samples involved banned pesticides (i.e., Aldicarb and Strychnine) but, at the same time, many positives cases were due to the exposure to commercially available products (i.e., Methiocarb and Anticoagulant rodenticides). Also, it's possible to identify the areas where domestic species are the most affected (i.e., Setubal and Lisboa) and the areas where the wild animals are the mainly affected species (i.e., Faro, Castelo Branco, and Bragança).

scholarly journals Determination of Multiresidue Pesticides in Green Tea by Using a Modified QuEChERS Extraction and Ion-Trap Gas Chromatography/Mass Spectrometry

2010 ◽  
Vol 93 (4) ◽  
pp. 1169-1179 ◽  
Author(s):  
David Steiniger ◽  
Guiping Lu ◽  
Jessie Butler ◽  
Eric Phillips ◽  
Yolanda Fintschenko
Keyword(s):  
Pesticide Residues ◽  
Ion Trap ◽  
Internal Standard ◽  
Gas Chromatography Mass Spectrometry ◽  
The European Union ◽  
Modified Quechers ◽  
Maximum Residue Limits ◽  
Dispersive Spe ◽  
Multiresidue Pesticide Analysis

Abstract The pesticide residues in exported and imported tea products must not exceed the maximum residue limits (MRLs) regulated by the import countries. Tea is a complex matrix that obfuscates the determination of pesticide residues. Many available methods for multiresidue pesticide analysis of tea are time-consuming and require many cleanup steps. The objective of this study was to develop a simple multiresidue method by using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction and ion-trap GC/MS/MS, which can identify, confirm, and quantify pesticides in complex matrixes. A tea product was homogenized with water, and the pesticides were extracted with acetonitrile containing 1 acetic acid. The extract was subjected to centrifugation, initial cleanup with dispersive SPE (dSPE), solvent exchange, and final cleanup with dSPE. Diethyl-d10-parathion and triphenyl phosphate were used as the internal standard and surrogate, respectively. The final extract was injected into an ITQ 700 gas chromatograph/mass spectrometer. Quantitation of individual pesticides was based on matrix-matched calibration curves with a correlation coefficient of >0.9930 for the 22 pesticides selected for the study. The recoveries of the 22 pesticides ranged from 78 to 115, except those for diazinon (130) and malathion (122), with an average RSD of 8.7. The LOD values of all of the pesticides, except for terbufos, were below the MRLs set by the European Union and Japan.

Assessment of phenolic content, pesticide residue and biological activities of organic lemon and cucumber in Lebanese market

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jana Dwaidy ◽  
Dina Cheaib ◽  
Adla Jammoul ◽  
Nada El Darra
Keyword(s):  
Pesticide Residue ◽  
Pesticide Residues ◽  
Biological Activities ◽  
Farming Systems ◽  
Food Product ◽  
The European Union ◽  
Bacterial Strains ◽  
Content Type ◽  
Pesticides Residues ◽  
Significant Difference

Purpose This study aims to evaluate the safety and quality of organic food product versus conventional ones in the Lebanese market. Design/methodology/approach Selected organic and conventional Lemon and cucumber were assessed for the presence of pesticides residues using LC-MS/MS and GC/MS/MS, also compared at the level of total polyphenols content, flavonoids, tannins and tested for their antiradical and antibacterial activities. Findings The findings indicate that organic lemons were contaminated by four types of pesticide residues (33.33%), while one pesticide residue (22.22%) was detected in conventional one, which were all below the European Union Maximum Residue Limits. For cucumber, six pesticide residues (66.66%) were detected in organic samples, while in conventional, eight pesticide residues (55.55%) were detected. However, absolutely four samples (44.44%) in each of conventional and organic cucumber samples surpass the maximum residue levels. Both lemon and cucumber, regardless of the farming systems, possess potent antioxidant activity with no significant difference, except for lemon, where total polyphenol was highly significant in conventional. Additionally, this study showed that lemon of conventional origin was slightly more effective in inhibiting the growth of gram-positive and gram-negative bacterial strains compared to organic samples, while both cucumber types did not exert any antibacterial effect. Originality/value This is the first paper to assess the polyphenols, pesticide residue and biological activities of organic lemon and cucumber in Lebanese market as well as comparing conventional to organic.

scholarly journals Quantification of Pesticide Residues in Drinking Water in Different Areas of District Charsadda, Pakistan

2017 ◽  
Vol 60 (2) ◽  
pp. 101-105
Author(s):  
Muhammad Nasimullah Qureshi ◽  
Inayat-Ur-Rahman Rahman
Keyword(s):  
Drinking Water ◽  
Risk Factor ◽  
Health Risk ◽  
Water Samples ◽  
Pesticide Residues ◽  
Khyber Pakhtunkhwa ◽  
Pesticides Residues ◽  
Permissible Limits ◽  
Health Risk Factor ◽  
Drinking Water Samples

Pesticides residues were determined quantitatively in drinking water samples collected fromdistrict Charsadda of the province Khyber Pakhtunkhwa, Pakistan employing GC-MS technique. Thesurvey was conducted soon after the flood in 2010. Aldicarb (0.003 mg/L) was found only in C7, whileresidues of acetachlor (0.001 mg/L) was found in C8. Among the pesticides quantified Chlorpyrifosdelivered highest amount of residues in C8, C9, C10, C11 and C12. Residues of o, p'-DDT were foundhigher in C1 to C6 than the permitted value (0.002 mg/L), while higher concentration of Pyridaben thanthe allowed value (0.0001 mg/L) was resulted in C1, C5, C6 and C14. Residues of Carbofuran, Atrazine,a-Endosulfan and Dieldrin, b-Endosulfan, Difenoconazole-1 and Difenoconazole-2 were not detectedin any of the collected water samples. Concentrations of rest of the pesticides residues detected in watersamples were within the permissible limits. The study revealed that water samples collected from districtCharsadda are highly contaminated with pesticides, which is a health risk factor for the inhabitant ofthis areas.

scholarly journals Quantification of Pesticide Residues in Fresh Vegetables Available in Local Markets for Human Consumption and the Associated Health Risks

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1804
Author(s):  
Umme Salma Nisha ◽  
Md. Sirajul Islam Khan ◽  
Mohammad Dalower Hossain Prodhan ◽  
Islam Md Meftaul ◽  
Noorjahan Begum ◽  
...  
Keyword(s):  
Food Safety ◽  
Health Risk ◽  
Health Risks ◽  
Pesticide Residues ◽  
Hazard Quotient ◽  
Human Consumption ◽  
The European Union ◽  
Lablab Purpureus ◽  
Potential Threat ◽  
Fresh Vegetables

Human health risks as a result of consuming pesticide residues in fresh vegetables have drawn serious attention to the scientific community, particularly in developing countries. This study analyzed country bean (Lablab purpureus L.) and eggplant (Solanum melongena L.) for widely used neonicotinoid, synthetic pyrethroid, and dithiocarbamate pesticide residues in order to ensure food safety. The analyzed vegetables contained residues of acetamiprid and cypermethrin in 17% of bean and 13% of eggplant samples, respectively; among them, 3% of bean and 1% of eggplant samples had residues of acetamiprid that were above the maximum residue limits set by the European Union (EU-MRLs). None of the samples for either of the analyzed vegetables contained the residue of thiram and lambda-cyhalothrin. In contrast, 83% of bean and 87% of eggplant samples had no detectable pesticides. Thus, the findings were surprising considering the repeated and overuse of pesticides in vegetables in the investigated areas. However, this outcome supports the general claim of pesticide adulteration in terms of the active ingredients, which is another drawback to ensuring food safety. The non-cancer health risk assessment based on the acute health risk to consumer (aHI) and chronic hazard quotient (HQ) indicates that contaminated vegetables might pose a potential threat to children’s health and alarming for adults. This study reflects the overall scenario of pesticide residues in marketed vegetables of Barishal district of Bangladesh, which could help the consumers to bring awareness, and to take necessary actions by the pesticide suppliers and policymakers.

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