BACKGROUND Epidemiology investigations have linked exposure to ambient and occupational air particulate matter (PM) with increased risk of lung cancer. PM contains carcinogenic and toxic metals, including arsenic and nickel, which have been shown in in vitro studies to induce histone modifications that activate gene expression by inducing open-chromatin states. Whether inhalation of metal compo...

Heavy metals in surface and groundwater were analysed and their sources were identified using multivariate statistical tools for two towns in South Africa. Human exposure risk through the drinking water pathway was also assessed. Electrical conductivity values showed that groundwater is desirable to permissible for drinking except for six locations. Concentration of aluminium, lead and nickel w...

The concentrations of iron (Fe), copper (Cu), zinc (Zn), nickel (Ni), manganese (Mn), cadmium (Cd), lead (Pb) and chromium (Cr) in chicken meat, chicken gizzard and turkey meat consumed in southern Nigeria were determined after nitric acid/perchloric acid digestion using graphite furnace atomic absorption spectrophotometry. The order of the elements in the chicken meat, chicken gizzard and turk...

The concentration of heavy metals in vegetable oils is an important criterion for the assessment of oil qualities with regard to freshness, keeping properties, storage and their influence on human nutrition and health. Trace heavy metals in vegetable oils are known to have an effect on the rate of oil oxidation. In this work, the contents of lead (Pb), cadmium (Cd), nickel (Ni), manganese (Mn),...

concentrations of cooper, zinc, iron, manganese, cadmium, lead and nickel in the semen of rabbits (n=27) in relation to spermatozoa quality were evaluated. samples were analyzed on an atomic absorption spectrophotometer (Unicam solar 939). For analysis of pathological spermatozoa semen samples were fixed in Hancock ́s solution and stained with Giemsa dye. For each rabbit at least 500 spermatozoa...

Children's dietary exposure to metals has received limited attention in Australia. This study undertook a market basket survey and analysed 253 food and beverages for metals. These data were used in conjunction with recent average diet data for children in Western Australia to model dietary metals exposure, with mean metals intakes calculated for boys and girls aged 8, 12, 13 and 16 years. Resu...

INTRODUCTION Accumulation of trace elements occurs in conditions of decreased kidney function. In some conditions, increased trace elements can have toxic features. On the other hand, studies are showing that concentration of some trace elements could be decreased in ERSD patients as well. The most important factor affecting trace element concentration in ERSD patients is the degree of renal fa...