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      • Open Access Article

        1 - Heavy metals concentrations (Ni / Pb / Cd) in Spinach (Spinacia oleraceae) with Effect of Atmospheric Desiccation (Case Study: Upper Hand and Downstream of Ramin Ahvaz Power Plant)
        Ali Karimi Shooshtari Maryam Mohammadi Rouzbahani
        Background and Objective: Several studies have been done to measure the concentration of heavy metals in vegetables, but so far, research on the determination of heavy metals in spinach and soil vegetation in upstream and downstream of the Ramin power plant using induct More
        Background and Objective: Several studies have been done to measure the concentration of heavy metals in vegetables, but so far, research on the determination of heavy metals in spinach and soil vegetation in upstream and downstream of the Ramin power plant using inductively coupled plasma - Optical emission spectroscopy has not been performed. Therefore, the purpose of this study was to determine the concentration of cadmium, lead, and nickel in spinach and soil harvested from upstream and downstream fields of Ramin Power Plant.Material and Methodology: 99 vegetable and soil samples were collected. After chemical digestion (for soil using EPA 3050 and for plant using Jackson, 1980), preparation was performed by the ICP-OES induction plasma coupling device. Then, the results were analyzed using SPSS20 software.Findings: The results showed that concentrations of Cd, Pb and Ni in spinach and the soil bottom of the plant were 17.76, 20.89 and 43.68 mg / kg, 0.09, 0.1, 2.52 mg / kg, respectively. And in the spinach and the upper soil of the Ramin power plant were measured 6.81, 17.94 and 28.38 mg / kg, 0.88, 0.8 and 1.85 mg / kg respectively, which according to the standard limit. Concentration of cadmium, nickel and lead in spinach was higher and in soil below standard level. The concentration of all three metals in all vegetable samples was higher than the standard standard. The general pattern of concentrations of metals in vegetables and soil is Ni> Pb> Cd.Discussion and Conclusion: Considering the high concentration of heavy metals in spinach herb and the impact of atmospheric dry atmospheric precipitation in the region, focusing on the potential risk of heavy metals contamination for food safety and human health in agricultural soils and upstream and downstream Ramin power plants it is very necessary. Manuscript profile
      • Open Access Article

        2 - Study on Heavy Metals Content (Fe, Pb and Cd) in Atmospheric Precipitation Collected from the High Traffic Intensity Regions of City of Hamedan
        Bahare Baharmastian soheil Sobhanardakani saeed Jameh Bozorgi
        Background and Objective: Air pollution is one of the most important environmental problems which can lead to the human health effects especially in the metropolitans. ­ Atmospheric precipitation including rain and snow are the most effective way for removing pollut More
        Background and Objective: Air pollution is one of the most important environmental problems which can lead to the human health effects especially in the metropolitans. ­ Atmospheric precipitation including rain and snow are the most effective way for removing pollutant from the atmosphere and its heavy metals can describe the variability of the environmental pollution in different urban areas. Therefore, this study was conducted to assess the metal (Fe, Pb and Cd) concentrations in the atmospheric precipitation collected from high traffic intensity areas of city of Hamedan in 2014. Method: A total of 24 snow samples were collected from 8 selected stations located in different regions of city of Hamedan with high traffic intensity. The samples were stored in polyethylene bottles and were acidified at a pH lower than 2 by adding concentrated HNO3 in order to avoid metal adsorption onto the inner bottle walls. Element (Fe, Pb and Cd) concentrations were determined using ICP-OES. All statistical analyses were done by SPSS software. Findings: The results showed that the mean concentrations (µg/L) of Fe, Pb and Cd in snow samples were 69.5 ± 143, 10.2 ± 8.94 and 17.6 ± 0.290, respectively. Also, the mean concentrations of Cd were significantly higher than maximum permissible limits established by WHO. Conclusion: The results indicate that rainfall collected from the high traffic intensity regions of city of Hamedan is polluted with Cd due to the high traffic volumes and their emitted pollutions, therefore, for maintaining of surface and groundwater resources and also public health consider the suitable strategies is recommended. Manuscript profile