| Revista: | Scientia agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000360530 |
| ISSN: | 0103-9016 |
| Autores: | Guerra, Fernando1 Trevizam, Anderson Ricardo2 Muraoka, Takashi3 Marcante, Nericlenes Chaves4 Canniatti Brazaca, Solange Guidolin5 |
| Instituciones: | 1Universidade de Sao Paulo, Centro de Energia Nuclear na Agricultura, Piracicaba, Sao Paulo. Brasil 2Universidade Estadual do Centro-Oeste, Departamento de Agronomia, Guarapuava, Parana. Brasil 3Universidade de Sao Paulo, Laboratorio de Fertilidade do Solo, Piracicaba, Sao Paulo. Brasil 4Universidade Estadual de Mato Grosso do Sul, Programa de Pos-Graduacao em Producao Vegetal, Aquidauana, Mato Grosso do Sul. Brasil 5Universidade de Sao Paulo, Departamento de Agroindustria, Alimentos e Nutricao, Piracicaba, Sao Paulo. Brasil |
| Año: | 2012 |
| Periodo: | Ene-Feb |
| Volumen: | 69 |
| Número: | 1 |
| Paginación: | 54-60 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | Ingestion of vegetables containing heavy metals is one of the main ways in which these elements enter the human body. Once entered, heavy metals are deposited in bone and fat tissues, overlapping noble minerals. Slowly released into the body, heavy metals can cause an array of diseases. This study aimed to investigate the concentrations of cadmium, nickel, lead, cobalt and chromium in the most frequently consumed foodstuff in the São Paulo State, Brazil and to compare the heavy metal contents with the permissible limits established by the Brazilian legislation. A value of intake of heavy metals in human diets was also calculated to estimate the risk to human health. Vegetable samples were collected at the São Paulo General Warehousing and Centers Company, and the heavy metal content was determined by atomic absorption spectrophotometry. All sampled vegetables presented average concentrations of Cd and Ni lower than the permissible limits established by the Brazilian legislation. Pb and Cr exceeded the limits in 44 % of the analyzed samples. The Brazilian legislation does not establish a permissible limit for Co contents. Regarding the consumption habit of the population in the São Paulo State, the daily ingestion of heavy metals was below the oral dose of reference, therefore, consumption of these vegetables can be considered safe and without risk to human health |
| Disciplinas: | Biología, Química, Medicina |
| Palabras clave: | Ecología, Salud pública, Toxicología, Contaminación, Cadena trófica, Toxicidad, Ingesta, Hábitos alimenticios |
| Keyword: | Biology, Chemistry, Medicine, Ecology, Public health, Toxicology, Contamination, Food chain, Toxicity, Intake, Feeding habits |
| Texto completo: | Texto completo (Ver PDF) |
