نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
Contamination of agricultural soils with potentially toxic elements is considered one of the most important environmental and public health issues in recent decades. These elements can enter the human food chain through plants and cause numerous health risks. The absorption and accumulation of these elements depend on the plant species and its physiological characteristics. The aim of this study was to identify the type and concentration of heavy metals present in agricultural soils and to investigate the ability of different edible vegetables to absorb these metals, as well as to propose strategies for reducing the negative environmental impacts of these pollutants and minimizing risks to human health. The aim of this study is to identify the type and amount of heavy metals present in agricultural soils and to investigate the ability of rice (Oryza sativa) and wheat (Triticum aestivum) plants to absorb these metals.
Materials and methods
In this study, soil samples were taken from agricultural lands located in the south and southwest of Isfahan from the surface to semi-deep soil layer in the range of 5 to 30 cm. Soil and plant samples were taken in the spring of 2024. After sample preparation, element concentrations were measured using standard laboratory methods and statistical indices including minimum, maximum, mean, standard deviation, and skewness were calculated.
Results and discussion
The results of soil measurements showed that the average element concentrations were in most cases within the normal range; so that in rice-cultivated soils, the average copper concentrations were 33.54, lead 22.9, and molybdenum 0.60 mg/kg. This indicates the dominance of the terrestrial origin of elements and the absence of severe pollution in the region, although spatial variations of some elements were observed. Simultaneous examination of soil and plants showed that the distribution pattern of elements is influenced by terrestrial and anthropogenic factors. Although the concentration of most heavy metals was within the permissible range, local accumulation of elements such as lead, zinc, arsenic, and strontium was observed, which could pose environmental and health risks if improper agricultural management continues
Conclusion
Investigation of plant tissues showed that element uptake strongly depends on plant type. To prevent the gradual accumulation of these elements, periodic monitoring of soil and plants, control of irrigation water quality, proper fertilizer management, and the use of sustainable methods such as phytoremediation are essential. Keywords: Potentially toxic elements, heavy metals, soil-to-plant transfer, bioaccumulation, phytoremediation, food safety
Contamination of agricultural soils with potentially toxic elements is considered one of the most important environmental and public health issues in recent decades. These elements can enter the human food chain through plants and cause numerous health risks. The absorption and accumulation of these elements depend on the plant species and its physiological characteristics. The aim of this study was to identify the type and concentration of heavy metals present in agricultural soils and to investigate the ability of different edible vegetables to absorb these metals, as well as to propose strategies for reducing the negative environmental impacts of these pollutants and minimizing risks to human health. The aim of this study is to identify the type and amount of heavy metals present in agricultural soils and to investigate the ability of rice (Oryza sativa) and wheat (Triticum aestivum) plants to absorb these metals.
Materials and methods
In this study, soil samples were taken from agricultural lands located in the south and southwest of Isfahan from the surface to semi-deep soil layer in the range of 5 to 30 cm. Soil and plant samples were taken in the spring of 2024. After sample preparation, element concentrations were measured using standard laboratory methods and statistical indices including minimum, maximum, mean, standard deviation, and skewness were calculated.
Results and discussion
The results of soil measurements showed that the average element concentrations were in most cases within the normal range; so that in rice-cultivated soils, the average copper concentrations were 33.54, lead 22.9, and molybdenum 0.60 mg/kg. This indicates the dominance of the terrestrial origin of elements and the absence of severe pollution in the region, although spatial variations of some elements were observed. Simultaneous examination of soil and plants showed that the distribution pattern of elements is influenced by terrestrial and anthropogenic factors. Although the concentration of most heavy metals was within the permissible range, local accumulation of elements such as lead, zinc, arsenic, and strontium was observed, which could pose environmental and health risks if improper agricultural management continues
Conclusion
Investigation of plant tissues showed that element uptake strongly depends on plant type. To prevent the gradual accumulation of these elements, periodic monitoring of soil and plants, control of irrigation water quality, proper fertilizer management, and the use of sustainable methods such as phytoremediation are essential. Keywords: Potentially toxic elements, heavy metals, soil-to-plant transfer, bioaccumulation, phytoremediation, food safety
Contamination of agricultural soils with potentially toxic elements is considered one of the most important environmental and public health issues in recent decades. These elements can enter the human food chain through plants and cause numerous health risks. The absorption and accumulation of these elements depend on the plant species and its physiological characteristics. The aim of this study was to identify the type and concentration of heavy metals present in agricultural soils and to investigate the ability of different edible vegetables to absorb these metals, as well as to propose strategies for reducing the negative environmental impacts of these pollutants and minimizing risks to human health. The aim of this study is to identify the type and amount of heavy metals present in agricultural soils and to investigate the ability of rice (Oryza sativa) and wheat (Triticum aestivum) plants to absorb these metals.
Materials and methods
In this study, soil samples were taken from agricultural lands located in the south and southwest of Isfahan from the surface to semi-deep soil layer in the range of 5 to 30 cm. Soil and plant samples were taken in the spring of 2024. After sample preparation, element concentrations were measured using standard laboratory methods and statistical indices including minimum, maximum, mean, standard deviation, and skewness were calculated.
Results and discussion
The results of soil measurements showed that the average element concentrations were in most cases within the normal range; so that in rice-cultivated soils, the average copper concentrations were 33.54, lead 22.9, and molybdenum 0.60 mg/kg. This indicates the dominance of the terrestrial origin of elements and the absence of severe pollution in the region, although spatial variations of some elements were observed. Simultaneous examination of soil and plants showed that the distribution pattern of elements is influenced by terrestrial and anthropogenic factors. Although the concentration of most heavy metals was within the permissible range, local accumulation of elements such as lead, zinc, arsenic, and strontium was observed, which could pose environmental and health risks if improper agricultural management continues
Conclusion
Investigation of plant tissues showed that element uptake strongly depends on plant type. To prevent the gradual accumulation of these elements, periodic monitoring of soil and plants, control of irrigation water quality, proper fertilizer management, and the use of sustainable methods such as phytoremediation are essential. Keywords: Potentially toxic elements, heavy metals, soil-to-plant transfer, bioaccumulation, phytoremediation, food safety
کلیدواژهها English