Background and Purpose:In the environment, heavy metals in high concentration are toxic to most organisms. Human activities have continuously increased the concentration of these metals in the environment such as soils. In the present study, soil samples collected from Ahvaz IV industrial estate in Khuzestan Province. Materials and Methods:The soil samples were taken from 9 stations in 4 cardinal directions at two distances (300 and 600 m) with three replicates in 2013. Samples subjected to bulk digestion and chemical partitioning. The concentrations of Fe, Mn, Ni, and Sn in soil were determined by inductively coupled plasma atomic emission spectroscopy. We used geoaccumulation index (I-geo) and pollution index (Ipoll) to assessment the soil contamination in the soil samples. Furthermore, all statistical analyses were performed using the SPSS statistical package.Results: I-geo and Ipoll results indicated that the soil samples are unpolluted to moderately polluted for all metals. The anthropogenic portion of metals are as follows: Fe (93%) > Ni (84.2%) > Mn (79.5%) > Sn (64%). Furthermore, the percent of anthropogenic pollution was more than percent of the natural portion. Conclusion:Metals concentration had the highest rate at a distance of 300 m from the contaminant of the source. The result of cluster analysis showed that there is strong relationship among all metals. [*Sobhanardakani S, Mohammadi-Roozbahani M, Sorooshnia R, Karimi H. Assessment of Heavy Metal Contamination in Surface Soils of Ahvaz IV Industrial Estate, Khuzestan Province, Iran. Iran J Health Sci 2016; 4(1): 53-61] http://jhs.mazums.ac.ir Assessment of metals origin in soil S. Sobhanardakani et al. Sci 2016; 4(1): 54 Iran J Health
Background & Aims of the Study: Heavy metal pollution has become a global problem, and their entry into the food chain is considered a threat to humans and other organisms. This study aimed to assess the risk of metals (chromium, nickel, arsenic, copper, zinc, cadmium, and lead) in edible barley grains grown in Khuzestan Province, Iran, in 2019. Materials and Methods:In this analytical study, five farms of edible barley grains were selected. Then, four stations were selected in each farm. After sampling, barley seeds were prepared by acid digestion method and read by inductively coupled plasma-mass spectrometry. The amount of metal contamination in the grains was estimated by the crop pollution index based on the classification of the US Environmental Protection Agency (USEPA), Hazard Index (HI), and the risk of carcinogenic risk in children and adults. Results:The highest amounts of heavy metals in barley grains belonged to zinc and the lowest to chromium. According to the USEPA classification, the potential non-carcinogenic risk for children was higher than for adults, and the HI in all study areas was at level 3 for adults and children and level 4 in some stations for children. In the case of barley samples, the average carcinogenic risk for arsenic was 2 per 10000 people for adults and 4 per 10000 for children, and cadmium was 1 per 10000 people for adults and 2 per 10000 for children in the population of the province. These figures were estimated to be at a safe level. Conclusion:Barley is one of the foods of the people of the region. The use of its contaminated amounts due to the biological accumulation of heavy metals can create health risks for its consumers in the long run.
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