Dietary intake and health effects of selected toxic elements

Silva, André Luiz Oliveira da; Barrocas, Paulo Rubens Guimarães; Jacob, Silvana do Couto; Moreira, Josino Costa

doi:10.1590/s1677-04202005000100007

Cited by 91 publications

(42 citation statements)

References 62 publications

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“…Toxic metals accumulate in the soil, plants and water communities, and disturb the biological equilibrium of ecosystems. The highest amounts of heavy metals enter the animal body through ingestion (Silva et al 2005). The body's absorption of selenium depends on the chemical composition of the food and on the interactions between Se and other elements.…”

Section: Discussionmentioning

confidence: 99%

Wild boars (Sus scrofa) as bioindicators of environmental levels of selenium in Poland

Nowakowska

Pilarczyk

et al. 2016

Polish Journal of Veterinary Sciences

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The objective of the study was to determine selenium content in selected organs (liver, kidney) of wild boars from different regions of Poland. Materials for the study were obtained from 28 sites located in 16 provinces of Poland. Selenium concentrations in organs were determined using spectrofluorometric methods after wet mineralization in HNO 3 and HClO 4 mixture. Mean selenium concentrations in the investigated wild boars from Poland were 0.230 μg/g wet weight in the liver and 1.327 μg/g w.w. in the kidneys. Hepatic and nephric Se concentrations ranged from 0.036-0.626 μg/g w.w. and 0.322-4.286 μg/g w.w., respectively. Selenium concentrations in the wild boars differed considerably according to geographical location. Concentrations of selenium were highest in wild boars from south-eastern provinces and lowest in animals from northern provinces. Most of Poland's area is environmentally deficient in this trace element, as evidenced by marginal selenium levels in the organs of the wild boars.

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Section: Discussionmentioning

confidence: 99%

Wild boars (Sus scrofa) as bioindicators of environmental levels of selenium in Poland

Nowakowska

Pilarczyk

et al. 2016

Polish Journal of Veterinary Sciences

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“…Rivers and lakes are exposed to atmospheric deposition of anthropogenicaly derived trace elements. This can create harmful effects on the environment and human health due to their toxicity and bioaccumulation in various environmental compartments [3,18]. Fortunately, the arsenic levels in the water bodies around Kisumu, including Lake Victoria, were within the maximum WHO safe limits.…”

Section: Discussionmentioning

confidence: 99%

Arsenic Levels in the Environment and Foods Around Kisumu, Kenya

Makokha¹,

Kinyanjui²,

Magoha³

et al. 2012

TOENVIEJ

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Abstract:The objective of this study was to determine the level of arsenic in the environment and in foods consumed around Kisumu, and compare these levels with the recommended WHO maximum limits. Arsenic was determined in water samples from Lake Victoria, River Nyamasaria, tap water as well as in the soil samples. It was also determined in staple foods including maize, beans, fish and vegetables. Arsenic content in the samples was determined using Atomic Absorption Spectrophotometry. The results showed that arsenic content in the water and soil ranged from 0.00 to 8.30 ng/100 ml and 12.39 to 24.36 g/100 g, respectively, and the mean arsenic levels in all water and soil samples were within the safe WHO limits for arsenic. The arsenic content in the maize and bean samples ranged from 5.21 to 7.03 g/100 g. The arsenic content in the vegetables and fish ranged from 2.89 to 7.34 and 4.31 to 7.66 g/100 g, respectively. The arsenic content in all the food samples were also within the safe WHO arsenic limits. However, there were variations in arsenic contents between the species of fish studied. The arsenic content was significantly higher in soil samples in comparison to water samples (p<0.05). Overall the arsenic levels in all the food, water and soil samples were within the maximum WHO safe limits. It is recommended that continuous monitoring of arsenic levels of water, soil and foods be put in place since there could be seasonal variations in their levels.

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“…Table 8 shows high positive correlations (≥0.500) between transition metals Fe-Ni, CuZn, Fe-Co, Ni-Co, Cr-Co, and Cu-Fe. These correlation trends reveal that transition metals may form stable covalent complexes simultaneously with large molecules such as proteins, enzymes, and hormones according to their similar chemical characteristics, including oxidation state [53]. On the other side the toxic metals Cd, Pb, and Hg show weak correlation with other metals, indicating that the presence or absence of one metal does not affect the others.…”

Section: Elemental Correlationsmentioning

confidence: 96%

Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in Iraq

Matloob¹

2016

Pol. J. Environ. Stud.

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Dietary intake and health effects of selected toxic elements

Cited by 91 publications

References 62 publications

Wild boars (Sus scrofa) as bioindicators of environmental levels of selenium in Poland

Wild boars (Sus scrofa) as bioindicators of environmental levels of selenium in Poland

Arsenic Levels in the Environment and Foods Around Kisumu, Kenya

Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in Iraq

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