Assessment of metal pollution in the Anzali Wetland sediments using chemical partitioning method and pollution indices

Esmaeilzadeh, Marjan; Karbassi, Abdolreza; Moattar, Faramarz

doi:10.1007/s13131-016-0920-z

Cited by 45 publications

(18 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There have been many studies on heavy metal content in sediment all around the world with diverse results depending on the heavy metal input, sediment characteristics and hydrographic conditions [6,12,[17][18][19]. Compared to other studies, the heavy metal content found in this study was rather low [1,14,[20][21].…”

Section: Heavy Metal Distributionscontrasting

confidence: 65%

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

2018

View full text Add to dashboard Cite

show abstract

Section: Heavy Metal Distributionscontrasting

confidence: 65%

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

2018

View full text Add to dashboard Cite

show abstract

“…About 15% of the pollution and 25% of the sedimentary loads are transported to the central part of the wetland through the Pirbazar River, which has recently increased the growth of aquatic plants including A. filiculoides in this part of the wetland. As a result, the self-purification capacity of the central has increased than the eastern part of the wetland which might reduce pollution loads in this area (Hoseinizadeh et al 2011;Esmaeilzadeh et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Uptake and accumulation of heavy metals by water body and Azolla filiculoides in the Anzali wetland

2021

View full text Add to dashboard Cite

The Anzali international wetland is a valuable habitat to a wide variety of aquatic flora and fauna. This wetland ecosystem is being threatened due to various pollutants particularly the heavy metals discharging from different point and non-point sources. Concentration of various heavy metals (Cr, Pb, Hg, Cu, Zn, Cd, Ag and Ti) was examined in the water body and Azolla filiculoides (an exotic fern in the Anzali wetland). The samples regarding water and A. filiculoides were randomly carried out in three parts of the wetland (eastern, central and western parts) in May 2015. After preparing and digesting the samples, the concentration of the heavy metals was measured using ICP OES method. The obtained results showed that the concentration of Zn in water and A. filiculoides samples was higher than other heavy meals in all parts of the wetland (p < 0.05). Overall, concentration of the heavy metals was significantly higher in the eastern part of the wetland than other two sampling locations (p < 0.05). Also with comparing the concentration of the heavy metals in water and A. filiculoides, it was found that all examined metals (except Cd and Ag) in A. filiculoides had significantly higher concentration than water sample, while Cd and Ag in water and A. filiculoides did not have a significant difference with each other. Based on the results, it can be concluded that A. filiculoides can effectively absorb Cr, Pb, Zn, Hg, Cu, Cd, Ag and Ti so that it might be used as a valuable species for the bioremediation and the removal of heavy metals from the wetland.

show abstract

“…Therefore, the heavy metal content of sediments is often used as an important reference indicator for judging the environmental quality of wetlands [12,13]. The analysis and evaluation of heavy metal pollution in wetlands has become an important area of research within the field of wetland environmental pollution [14,15]. With the continual development of environmental science techniques, some scholars have explained the interaction of pollutants in the soil combined with the application of biotechnology, effectively repairing the pollution of heavy metals in the soil [16–19].…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution and ecological risk assessment of heavy metals in soil from the Raoyanghe Wetland, China

Wang

Sun

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

Wetlands are recognized as one of the most important natural environments for humans. At the same time, heavy metal pollution has an important impact on wetlands. China's Raoyanghe Wetland is one of the most important natural wild species gene banks in China. Eight heavy metal elements (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) in surface layer and deep layer soils were analyzed using statistical-, pollution index-, and Nemerow index-based methods, the Hakanson potential ecological risk index method, and principal component and cluster analyses. The results showed that the maximum concentrations of heavy metals exceeded the background values in the core area and buffer zone of the wetland, but the heavy metal content of the soils was generally low and did not exceed 30%. With the exception of Hg, heavy metal concentrations showed strong spatial differentiation. The differences between the surface layer and deep layer soils of the core area were smaller than in the buffer zone. With the exception of Cd, a clear vertical zonation in the buffer zone soils was observed, showing greater evidence of external influences in this zone than the core. With the exception of partial surface soils, which indicated a safe level of pollution in the core area, all other soils were classified as having a ‘mild’ level of pollution. Thus, the wetland is moderately polluted, with both the core area and the buffer zone presenting a low level of potential ecological risk. According to the results of the present study, heavy metal contaminants in the wetland soils were found to be derived mainly from the natural sources.

show abstract

Assessment of metal pollution in the Anzali Wetland sediments using chemical partitioning method and pollution indices

Cited by 45 publications

References 33 publications

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

Uptake and accumulation of heavy metals by water body and Azolla filiculoides in the Anzali wetland

Spatial distribution and ecological risk assessment of heavy metals in soil from the Raoyanghe Wetland, China

Contact Info

Product

Resources

About