scholarly journals DETECTION OF PESTICIDE RESIDUES AND HEAVY METALS IN WHEAT SAMPLES COLLECTED FROM LOCAL MARKETS IN DIFFERENT EGYPTIAN GOVERNORATES

2012 ◽  
Vol 3 (3) ◽  
pp. 273-287
Author(s):  
M. El-Zemaity ◽  
M. El-Hashash ◽  
Mona Khorshed ◽  
Ghada Ali
Keyword(s):  
Heavy Metals ◽  
Pesticide Residues ◽  
Local Markets

scholarly journals Evaluation of mycotoxins and heavy metals pollution in some types of noodles in local markets

2021 ◽  
Vol 1879 (2) ◽  
pp. 022006
Author(s):  
Jameel Mohammed Mohammed ◽  
Marwa Ibrahem Abd ◽  
Saif Ali Khishan
Keyword(s):  
Heavy Metals ◽  
Local Markets ◽  
Metals Pollution ◽  
Heavy Metals Pollution

scholarly journals Determination of heavy metals and pesticide residues level in selected sundried and smoked vegetables from Aizawl market

2017 ◽  
Vol 17 (4) ◽  
pp. 197-203
Author(s):  
C. Malsawmtluangi ◽  
B. Lalzamliana ◽  
Klaudi K. Vaiphei
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Gas Chromatography ◽  
Atomic Absorption Spectroscopy ◽  
Pesticide Residues ◽  
High Rate ◽  
Predisposing Factor ◽  
Vegetable Samples ◽  
Permissible Limits

Sundried and smoked vegetables constitute major parts of the Mizo cuisine. Heavy metals and pesticides can be present in vegetables and cause many diseases including cancer. The objective of this study is to determine the concentration of heavy metal and pesticide residues in commonly consumed sundried and smoked vegetables from Aizawl market. Since cancer is prevailing at a high rate in Mizoram, it also aims to study whether there is any link between cancer and these vegetables. The concentrations of heavy metals were analyzed using atomic absorption spectroscopy and pesticide residues levels were analyzed using gas chromatography. This study reveals that the levels of heavy metals tested were within the permissible limits in all the vegetable samples, except for cadmium. Since cadmium exceeds the permissible limit, it can pose health risk for the consumers. The pesticide residues found in the tested samples were all within permissible limits. However, the amount and duration of consumption need to be considered as this can be a predisposing factor for cancer and other diseases.

scholarly journals Quantification of Heavy Metals and Pesticide Residues in Widely Consumed Nigerian Food Crops Using Atomic Absorption Spectroscopy (AAS) and Gas Chromatography (GC)

Toxins ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 870
Author(s):  
Kingsley O. Omeje ◽  
Benjamin O. Ezema ◽  
Finbarr Okonkwo ◽  
Nnenna C. Onyishi ◽  
Juliet Ozioko ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Gas Chromatography ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Pesticide Residues ◽  
Food Crops ◽  
Gradual Decline ◽  
Fluted Pumpkin ◽  
Permissible Limits

More still needs to be learned regards the relative contamination of heavy metals and pesticide residues, particularly those found in widely consumed Nigerian food crops like cereals, vegetables, and tubers. In this current study, the heavy metals and pesticide residues detectable in widely consumed Nigerian food crops were respectively quantified using atomic absorption spectroscopy (AAS) and gas chromatography (GC). Specifically, the widely consumed Nigerian food crops included cereals (rice, millet, and maize), legume (soybean), tubers (yam and cassava), as well as leaf (fluted pumpkin, Amaranthus leaf, waterleaf, and scent leaf) and fruit vegetables (okro, cucumber, carrot, and watermelon). Results showed that the detected heavy metals included arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), iron (Fe), lead (Pb), manganese (Mn), mercury (Hg), and nickel (Ni), whereas the pesticide residues included Aldrin, Carbofuran, g-chlordane, Chlorpyrifos, DichloroBiphenyl, Dichlorodiphenyldichloroethane (DDD), Dichlorodiphenyltrichloroethane (DDT), Dichlorvos, Endosulfan, Heptachlor, Hexachlorobenzene (HCB), Isopropylamine, Lindane, t-nonachlor, and Profenofos. Across the studied food crops, the concentrations of heavy metals and pesticides were varied, with different trends as they largely fell below the established maximum permissible limits, and with some exceptions. Our findings suggest there could be a somewhat gradual decline in the concentration of the heavy metals and pesticide residues of these studied food crops when compared to previously published reports specific to Nigeria. To help substantiate this observation and supplement existing information, further investigations are required into the concentration of these heavy metals and pesticide residues specific to these studied food crops at other parts of the country.

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