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      • Open Access Article

        1 - Geochemical and environmental assessment of cadmium in rhizosphere soil and leaves of 11 grape varieties in greenhouse conditions
        Hoda Karimi shahryar Mahdavi Nasrin Hasanzadeh Rouhollah Karimi
        Cadmium is a toxic metal that has significantly increased its entry into the soil and food chain with the rise of environmental pollution. In this study, 11 grapevine cultivars (Vitis vinifera L.) were exposed to three levels of cadmium (0, 50, and 100 milligrams per ki More
        Cadmium is a toxic metal that has significantly increased its entry into the soil and food chain with the rise of environmental pollution. In this study, 11 grapevine cultivars (Vitis vinifera L.) were exposed to three levels of cadmium (0, 50, and 100 milligrams per kilogram) in a factorial experimental design based on a completely randomized design in the research greenhouse of Malayer University. After applying the different cadmium treatments over a period of approximately 4 months, leaf and rhizosphere soil samples of different grapevine cultivars were collected, and the concentrations of cadmium and zinc were measured using an atomic absorption spectrometer. Significant differences were observed among grapevine cultivars in terms of cadmium and zinc content in leaves and rhizosphere soil. The cultivar "Bidaneh Sefid" had the lowest cadmium content in leaves, while the highest cadmium content in rhizosphere soil was observed in the cultivar "Rish Baba." Moreover, the cultivar "Turkmen 4" had the highest zinc content in leaves, and the cultivar "Rish Baba" had the highest zinc content in rhizosphere soil. Geochemical indices including Igeo, Ipoll, CF, and BAC were evaluated in the surface soil compared to the standard shell and earthworm. Based on the results of this study, in the examination of soil indices in different grapevine cultivars and the impact of different cultivars, according to the Ipoll and Igeo (Müller) indices in the shell, in non-stressed soil without cadmium, it was considered slightly contaminated, and according to the standard shell in the earthworm, it was considered quantitatively contaminated. According to the Igeo index in the shell, in soil under 50 milligrams per kilogram of cadmium stress, it was considered slightly contaminated, and according to the Ipoll index, it was considered slightly to moderately contaminated, and according to the standard shell in the earthworm, it was considered heavily contaminated. According to the Igeo and Ipoll indices in the shell, the results of soil under 100 milligrams per kilogram of cadmium stress, were considered heavily contaminated, and according to the standard shell in the earthworm, it was considered severely contaminated. The results of these indices indicated that zinc was in the non-contaminated category. Manuscript profile
      • Open Access Article

        2 - Investigation of pesticide residues of Moinfos and Ethion in apple and grape and health risk assessment based on Monte Carlo Simulation
        Behzad  Mohammadi Khangahi Neda Sohili Maleki Lila  Abbaszadeh Gholamhossein Safari
        The residues of Moinfos and Ethion pesticides in 20 samples of apples and 12 samples of grapes, in two treatments, unwashed and washed, after extraction with a convenient, fast, effective, and safe analytical method (QuEChERS) were analyzed using gas chromatography and More
        The residues of Moinfos and Ethion pesticides in 20 samples of apples and 12 samples of grapes, in two treatments, unwashed and washed, after extraction with a convenient, fast, effective, and safe analytical method (QuEChERS) were analyzed using gas chromatography and mass spectrometry (GC/MS). Also, the health risk assessment of pesticide residues in apple and grape samples was done using the hazard quotient (HQ) and based on the Monte Carlo simulation for two age groups of adults and children. The results showed that the average residue of ethion in unwashed apple and grape samples was lower than the maximum residue levels of the MRLs of Iran. While, the average residue of Moinphos in unwashed apple and grape samples was higher than the MRLs of Iran. Also, the pesticide residues of Ethion and Moinfos in 100% of the apple and grape samples were higher than the MRL of the European Union. After washing, the average residue of Moinfos and Ethion pesticides decreased by 47 and 45% in apple samples and 44 and 42% in grape samples, respectively. The results of risk assessment based on Monte Carlo simulation showed that the HQ value is less than one with 100% certainty in the age groups of children and adults. Therefore, the consumption of apples and grapes with these two pesticides does not pose any significant risk to the health of consumers. However, due to the use of numerous pesticides, continuous and accurate monitoring and strict regulations regarding the quality and safety of fruits are recommended. Manuscript profile