Assessment of heavy metals in Nasseri Wetland based on the biological indicator of Transfer Factor in aquatic plants Typha latifolia and Phragmites australis

Koshafar, Azita; velayatzadeh, mohammad

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Koshafar A, velayatzadeh M. Assessment of heavy metals in Nasseri Wetland based on the biological indicator of Transfer Factor in aquatic plants Typha latifolia and Phragmites australis. 3 2025; 17 (1) :43-55
URL: http://jmb.ahvaz.iau.ir/article-1-1028-en.html

Assessment of heavy metals in Nasseri Wetland based on the biological indicator of Transfer Factor in aquatic plants Typha latifolia and Phragmites australis

Azita Koshafar

, Mohammad Velayatzadeh

Department of Environment, Ahv.C., Islamic Azad University, Ahvaz, Iran

Abstract: (392 Views)

Aquatic plants are among the biological indicator groups that can absorb and accumulate heavy metals and can be used for monitoring heavy metals. This study aimed to assess the heavy metals copper, iron, zinc, lead, chromium, molybdenum, manganese and magnesium in the leaves, stems and roots of aquatic plants Typha latifolia and Phragmites australis. In the spring, 36 samples of reed and sedge plants were sampled from 3 stations of Nasseri Wetland in Khuzestan Province. Chemical digestion of leaves, stems and roots of plants was performed by dry digestion and heavy metals method using ICP-OES model Varian 710-ES made in the USA. The highest concentration of heavy metals related to magnesium was obtained in the roots of reed and sedge plants (1064.13 and 1293.20 mg/kg, respectively). The lowest metal values were also related to lead in the stems of sedge plants and leaves of reed plants (0.11 and 0.12 mg/kg, respectively). The transfer factor of iron, chromium, manganese and magnesium metals was lower than 1. For lead, copper and zinc metals, the transfer factor in aquatic reed plants was higher than 1, but was lower than 1 in sedge plants. The concentrations of copper, iron, zinc, lead, chromium, manganese and magnesium in the leaves, stems and roots of reed and lui in the studied stations of Nasseri Wetland were significantly different (P<0.05), but the amounts of molybdenum in the leaves, stems and roots of reed and lui did not show a significant difference (P>0.05). Reed and lui aquatic plants absorbed different concentrations of heavy metals copper, zinc, lead, chromium, magnesium, manganese and molybdenum and accumulated them in the leaves, stems and roots. Therefore, considering the metal transport factor, it can be stated that reed and lui have the ability to absorb and accumulate metals in their roots and leaves.

Keywords: Heavy metals, aquatic plants, transport factor, wetland aquatic animals, aquatic ecosystems

Full-Text [PDF 3534 kb] (264 Downloads)

Type of Study: Research | Subject: Pollution
Received: 2025/02/9 | Accepted: 2025/04/23 | Published: 2025/04/29