Ociel Muñoz-Fariña, Analese Roman-Benn, Olga García, María Cristina Ravanal, Luisbel González
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Arsenic, lead and cadmium in rice in Latin America and human health risks.
Rice is a dietary staple throughout Latin America and serves as a major source for heavy‑metal exposure by consumers. This study investigated arsenic, lead and cadmium levels in rice from Guyana and Chile, assessing associated public health risks. The quantification of these metals was carried out by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). The mean level of total As in Guyanese rice (100 ± 21 ng/g dw) was higher than in those marketed in Chile (75 ± 36 ng/g dw), while comparison of their mean Pb and Cd levels revealed no statistical differences. Target Hazard Quotient (THQ) values indicated that the population in Guyana may face non-cancer health risks, as the THQ reached 1, while Chilean rice posed no non-cancer risks. Carcinogenic risks were estimated at 4.3 × 10-4 for Guyana and 6.4 × 10-5 for Chile, suggesting potential cancer risks from rice consumption by their population.
期刊介绍：
Food Additives & Contaminants: Part B publishes surveillance data indicating the presence and levels of occurrence of designated food additives, residues and contaminants in foods, food supplements and animal feed. Data using validated methods must meet stipulated quality standards to be acceptable and must be presented in a prescribed format for subsequent data-handling.
Food Additives & Contaminants: Part B restricts its scope to include certain classes of food additives, residues and contaminants. This is based on a goal of covering those areas where there is a need to record surveillance data for the purposes of exposure and risk assessment.
The scope is initially restricted to:
Additives - food colours, artificial sweeteners, and preservatives;
Residues – veterinary drug and pesticide residues;
Contaminants – metals, mycotoxins, phycotoxins, plant toxins, nitrate/nitrite, PCDDs/PCFDs, PCBs, PAHs, acrylamide, 3-MPCD and contaminants derived from food packaging.
Readership: The readership includes scientists involved in all aspects of food safety and quality and particularly those involved in monitoring human exposure to chemicals from the diet.
Papers reporting surveillance data in areas other than the above should be submitted to Part A . The scope of Part B will be expanded from time-to-time to ensure inclusion of new areas of concern.
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