E.E. Santos's research while affiliated with Federal University of Rio de Janeiro and other places

Publications (2)

Article
Full-text available
Concentrations of Al, Cd, Cr, Cu, Mn, Ni, Pb, U and Zn were determined in vegetables (leafy vegetables, fruit, root, grain and cereal), derived products (sugar, coffee, manioc flour, wheat flour, corn flour, and pasta) and animal products (meat, fish, milk) most frequently consumed by adult inhabitants of Rio de Janeiro city. A total of 90 samples...
Article
Full-text available
The concentrations of the naturally occurring radionuclides 232Th, 238U, 210Pb, 226Ra and 238Ra were determined in the vegetables (leafy vegetables, fruit, root, bean and rice) and derived products (sugar, coffee, manioc flour, wheat flour, corn flour and pasta) consumed most by the adult inhabitants of Rio de Janeiro City. A total of 88 samples fr...

Citations

... The 226 Ra, 210 Pb, and 228 Ra were analyzed by selective co-precipitation and gross alpha count for 226 Ra and gross beta count for 228 Ra and 210 Pb, using a low-background anticoincidence proportional detector (Bertold, model LB770-1), according to Godoy et al. (1994). This methodology is widely used by other authors (Santos et al. 2002;Lauria et al. 2012;Pereira et al. 2020;2021a, 2021b2021a). Using the counting time of 100 min for alpha and 400 min for beta, the minimum detectable activities obtained with 95% confidence level were 5 mBq, 10 mBq, and 10 mBq for 226 Ra, 228 Ra, and 210 Pb, respectively (Lauria et al. 2012). ...
... Arsenic concentration varied among the analyzed foodstuffs. This might be owing to variances in arsenic absorption and accumulation capacities, and changes in the development periods and rates of the dietary items (Islam et al. 2014b), and climatic variations for the vast areas of food production in Bangladesh (Santos et al. 2004). All cereals, vegetables, fruits, fish, eggs, milk, and meat samples tested had mean arsenic amounts below the acceptable limit (0.5 mg/ kg) (Codex 2001; Table 1). ...