introduction due to mining, considerable amounts of heavy metal bearing mineralsare scattered in the atmosphere in the form of dust and make the surrounding air, water and soils polluted.runoff water movingfrom the mountainstowardsplains may also transport heavy metals from mines to the soils.one type ofpollutions is contamination withheavy metals.the purpose of the present research has been to...

Purpose: To determine whether chromium, cadmium, and lead levels in human Fingernails reflected the exposure to workplace contamination in tanneries. Approach: 49 exposed tanning workers and 33 controls were monitored for fingernail levels of chromium, cadmium, and lead by graphite furnace and hydride atomic absorption spectroscopy. Results: The mean levels of fingernail chromium, cadmium, and ...

abstract the use of plants to remove contaminants from the environment and concentrate them in above-ground plant tissue is known as phytoextraction. this study was conducted to investigate the potential of phytoextraction of pb and cd metals canola (brassica napus) and sorghum (sorghum bicolor) which are high biomass crop and the effect of amendments on the efficiency of phytoextraction. the s...

background edible salt is the most commonly used food additive worldwide. therefore, any contamination of table salt could be a health hazard. objectives the present study aimed to determine the levels of heavy metals in table and bakery refined salts. materials and methods eighty-one table refined salt samples and the same number of bakery refined salt samples were purchased from retail market...

  Background & Aims of the Study: Heavy metals, such as cadmium, lead, and chromium, are common environmental pollutants; however, they are used in various cosmetics. Regarding this, the aim of the present study was to measure the concentrations of lead, cadmium, and chromium in the hair colors available in the markets of Qom, Iran. Materials and Methods: This cross-sectional...

every year the entrance of factory wastes such as shiraz petrochemical complex, marvdasht sugar cube factory, and charmineh factory, and other industrial units into the kor and sivand rivers and also the entrance of the marvdasht and zarghan city sewer system wastes into the kor river and the use of their water in the cultivation of the rice has caused a significant increase in the lead and cad...

Background and Objectives: Milk is an important component of the human diet. Exposure to heavy metals through dairy consumption of contaminated foods endangers human health. The aim of this study was to assess concentrations of lead and cadmium in raw milk samples from east of Iran and their safety risks. Materials and Methods: In this study, 54 raw milk samples from five regions were selected...