heavy metal accumulation in the aquatic ecosystems is a main concern which threats human health. in this study two commercial fish species, rutilus kutum and chelon aurata were selected for assessing heavy metal (cd, pb, zn) concentrations in gill and liver tissues at babolsar’s coast, the southern caspian sea, iran. babolsar is one of the important fishery stations in the southern caspian sea....

prenatal lead exposure could not only affect various organ systems of the mother, but also provide a plumbeous environment for the fetus and newborns, and may affect the fetus in a number of detrimental ways. the aim of this study was to adequately determine the interaction between these factors and risky behaviors such as smoking.data from nanjing maternity and child health care hospital surve...

We determined the Cd, Cr, Cu, Ni, Pb, and Zn concentrations in soil samples collected along the eight main outlet roads of Poznań. Samples were collected at distances of 1, 5, and 10 m from the roadway edges at depth intervals of 0-20 and 40-60 cm. The metal content was determined in seven grain size fractions. The highest metal concentrations were observed in the smallest fraction (<0.063 mm),...

The heavy metal uptake of ten plant species was studied under different soil and climatic conditions. Effects of soil pH, temperature, plant species and phenophase on the heavy metal content of stems and leaves were determined in pot experiments. Plants and soil samples were collected from a lead/zinc mine ore (Gyöngyösoroszi, Hungary) and characterised by high contents of Pb, Zn, As, Cd, Cu. T...

background: cigarette butts have been shown to release numerous kinds of chemicals such as heavy metals in water and may be a continual source of aquatic environments contamination after discarding. the objective of the present study was to determine the concentration of cd and pb in cigarette filters of different iranian and non-iranian brands in smoked and non-smoked samples. methods: ten dif...

A kinetic study of cadmium and lead biosorption to a brown alga, Kjellmaniella crassiforia, was carried out. The shrinking core model derived by M. Gopala Rao and A. K. Gupta (Chem. Eng. J.24, 181, (1982)) was modified and adapted for description of the rate process of cadmium and lead biosorption to the alga. The biosorption rate process was well described and average apparent diffusion coeffi...

BACKGROUND The dietary intake of harmful elements, particularly lead and cadmium constitutes a health threat and essential measures should be undertaken to reduce consumer exposure. The latest risk assessments by the European Food Safety Authority (EFSA) and Joint FAO/WHO Expert Committee on Food Additives (JECFA) have indicated that the Provisional Tolerable Weekly Intake (PTWI) for lead and c...

Current study was done to determine the concentration of heavy metals including Lead and Cadmium and nutrients element Copper and Zinc in a simple and whole wheat Macaroni in the valid different supermarkets in the city of Tehran. 254 samples from seven Iranian simple Macaroni , four foreign simple Macaroni and two Iranian whole wheat macaroni were purchased consecutively in 3 seasons of 2015. ...