scholarly journals Contamination of cowpea and by-products by organophosphorous pesticide residues in Ngaoundere markets: Dietary risk estimation and degradation study

2013 ◽  
Vol 7 (5) ◽  
pp. 92-102 ◽  
Author(s):  
Sonchieu Jean
Author(s):  
Oluwaseun Babalola ◽  
Ajoke Raji

Remnant or by-products of pesticides arising from the field or storage pest applications sometimes find their ways into the final food produce. They are called pesticide residues. Studies have shown the occurrence of these residues in various food produce including tea, fruits, vegetables, beverages and even baby and infants food. With about 800 pesticides permitted for use globally, residue becomes almost inevitable. For the infants, and young children, the health effects at that critical developmental phase could be severe and irreversible. This is because quantitative and qualitative differences in pesticides absorption, metabolism, detoxification and excretion relative to adults, make the children more susceptible due to much higher kg per body weight. This study assessed the pesticide residues in the common baby food and compared with international maximum residual limits. Using gas chromatography with mass spectrometric detection, five infant and baby’s food tagged A, B, C, D and E were analyzed. In all, multiple residues involving various twenty five pesticides were detected in the five food products. Fifteen of the pesticides including resmethrin (0.0002 µg/g), chlorpyrifos (0.0002 µg/g), allethrin (0.0004 µg/g), piperonyl butoxil (0.0003 µg/g), cyfluthrin (0.0001 µg/g), chlorpyrifos methyl (0.0002 µg/g), diclorovos (0.0001 µg/g), fluridane (0.0002 µg/g), fludioxonil (0.0002 µg/g and 0.0001 µg/g), lindane (0.0002 µg/g), daminozide (0.0002 µg/g), methy paraoxon (0.0001 µg/g) and DDE.p.p (0.0002 µg/g and 0.0001 µg/g) were above the WHO and USEPA maximum residual limits. The potential interaction of different mixtures for those pesticides that are below international residual limits as well as the occurrence of those at concentrations above these standards called for serious concerns, giving their critical effects on nervous, endocrine and immune systems. Further studies must be encouraged to determine the status of residue in other foods and the elimination of these residues, particularly in the infants and baby’s food.


2011 ◽  
Vol 86 (5) ◽  
pp. 506-510 ◽  
Author(s):  
A. B. Gebara ◽  
C. H. P. Ciscato ◽  
S. H. Monteiro ◽  
G. S. Souza

2017 ◽  
Vol 52 (4) ◽  
pp. 256-266 ◽  
Author(s):  
Darío A. Maggioni ◽  
Marcelo L. Signorini ◽  
Nicolás Michlig ◽  
María R. Repetti ◽  
Mirna E. Sigrist ◽  
...  

Author(s):  
Yetunde A. Adeshina ◽  
Akinnawo Solomon ◽  
Aiyesanmi F. Ademola

River Owena functions as the source of water for the Owena dam which supplies drinking water to the communities in the region, the river also plays an important economic role in irrigation and fish farming in the region. But there has been an indiscriminate used of pesticide because residents of the study area are not well orientated concerning the negative impact of pesticide in the environment. Analysis of organochlorine and organophosphorous pesticide residues was carried out in water and sediment from river Owena, the objective of the research is to determine the contamination levels of organochlorine and organophosphorous pesticide in the water and sediment of river Owena. Analysis was carried out using gas chromatography coupled with electron capture detector in order to identify and quantify the concentration of organochlorine and organophosphorous pesticide in the water and sediment samples from river Owena. Analysis revealed the contamination of water and sediment with organophosphorous pesticide residues at different contamination levels in both dry and rainy season, while a low levels of organochlorine pesticide residues only during the dry season. The TOPP for sediment samples ranges from 1.045mg/L during the dry season and 2.279mg/L during the rainy season, while the TOPP for water samples ranges from 7.163mg/L during the dry season to 7.83mg/L during the rainy season. The TOCP values ranges from 1.288mg/L to 0.015mg/L for sediment and water samples respectively during the dry season, while organochlorine pesticides were not detected during the rainy season. The occurrence and seasonal variation of organophosphorous pesticide residues in river Owena can be attributed to the intense agricultural and urban activities in the vicinity of river Owena. 


Food Control ◽  
2020 ◽  
Vol 118 ◽  
pp. 107416
Author(s):  
Yamdeu Joseph Hubert Galani ◽  
Michael Houbraken ◽  
Abukari Wumbei ◽  
Joseph Fovo Djeugap ◽  
Daniel Fotio ◽  
...  

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