Rock Samples analysis are done using thin section method on polarized microscope to find out the composition of volcanic minerals. Furthermore, using Inductively Coupled Plasma Oscilloscope Emission Spectrometer (ICP-OES), X-Ray Fluorescence (XRF). Surface soil samples are taken on mapping variable, forest fires, especially for top and bottom of soil only garbage variable are taken. There are two concentrated heavy metal zone and two particular zone (sample point 29, zone I sample point 3 and 5, zone II) as concentrated heavy metal on rocks fractures, lavene statistic probability show the source of heavy metal Cr are different. The very low margins of exposure for As and Pb suggest a worrying risk for the Lebanese population.ĭetermination of heavy metal are done on Mount Bawakaraeng soil to find out the impact of anthropogenic, using range proximity matrix independent variables on camps, fired, garbage. An excess of the Ni tolerable daily intake was observed for the most exposed populations. There were no safety concerns for Hg, Cd, Cr or Co (except the 95th percentile of 6–9 years old). Daily exposures to TEs due to the fact of pita consumption were compared to safety levels.
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The pita brand B3 was the source of the highest TEs exposure, except for Ni for which it was B1. Levels of TEs (i.e., As, Cd, Co, Cr, Hg, Ni, and Pb) in B1, B2, B3 pitas were measured. The most consumed pita brands, labeled B1, B2, and B3, were selected. A survey of white pita consumption was achieved among one thousand Lebanese individuals, grouped into adults (above 15 years old, men, and women) and young people (6–9 and 10–14 years old). The objective of this study was to assess Lebanese population exposure to trace elements (TEs) via white pita consumption. But preventing soil acidification is the significant measure to prevent the environmental risk of it. In general, the environmental risk of soil cadmium contamination in karst areas of Guangxi is relatively low. Guangxi has strong development of karst landform, with the continuous process of soil formation, the activity of Cd in the soils in such areas will gradually become stable. The results indicate that the bioaccumulation and mobility of Cd from soil to rice grain are restrained by high soil pH, high contents of organic matter, clay mineral and carbonate. Based on the measured data, influencing factors on bioaccumulation of Cd and its contamination risk in study area were discussed. Meanwhile, sequential extraction procedure were used to analysis the chemical fractions of Cd in root-soil samples. The Cd contents of soil and rice grain samples and several soil properties, including organic matter, Fe2O3, Al2O3, CaO, MgO, SiO2 contents and pH were tested. In this study, vertical soil profiles, rice grains and corresponding root-soil samples were collected in Guangxi. It is widely accumulated in karst areas in southwest China, especially in Guangxi Province.
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This research suggests that the reduction in wheat grain Pb is likely to be achieved by the control over ambient air Pb, whereas the reduction in the wheat grain Cd by the remediation of soil pollutants.Ĭadmium has become the foremost inorganic pollutant in farmland in China. Introduction of ambient air factor (TSP Pb and Cd) greatly improved the modeling effect of wheat grains Pb, while the modeling of grain Cd was more dependent on soil pH and total soil Cd. This speculation was confirmed by the results of the predictor variable relative weight method based on the multiple regression analysis. The Pb in wheat grains was more likely to derive from ambient air than from soil, whereas the impact of ambient air on the accumulation of Cd in wheat grains might be very limited. The results showed that total suspended particulate (TSP), soil, and wheat grains exhibited different degrees of Pb and Cd contamination in the study area, and the contamination of Cd is more serious than Pb contamination. Two models of wheat grain Pb and Cd concentrations were established based on the 3 variables including soil Pb and Cd concentration, ambient air Pb and Cd concentration, and soil pH. Lead and Cd accumulation in wheat grains was examined in this study. In this study, wheat was grown around a lead‑zinc smelting area and exposed to different soil Pb and Cd levels and different ambient air Pb and Cd levels. However, at present, the differences in the pathways of cadmium and lead accumulation in wheat grains in an air-soil-wheat system are not clear. The excessive accumulation of wheat grain metals and metalloids caused by ambient air contamination has drawn an increasing concern.