Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta

Wu, Qiutang; Bian, Fuhua; Eller, Franziska; Wu, Mengdi; Yu, Junbao; Guan, Bo

doi:10.1007/s13157-022-01547-5

Cited by 5 publications

(5 citation statements)

References 53 publications

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“…Consistently, the horizon distribution trend of metals can be used to reveal their sources. A high metal concentration in the topsoil indicates that there exist new metal inputs, such as atmospheric deposition and agricultural activities (Zhang et al, 2012;Wu et al, 2022). However, the concentration of Mn was negatively correlated with depth in the Liaohe Delta.…”

Section: Effect Of Depth On the Metal Concentration In Soilmentioning

confidence: 99%

Characteristics and influencing factors of metal distribution in different wetlands of the Liaohe Delta, Northeastern China

Zhang

Qin

et al. 2022

Front. Mar. Sci.

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Metal distribution in different wetlands under the complex influence of natural and anthropogenic activities in the Liaohe Delta was analyzed to better protect and manage delta areas. Ninety-six soil samples were collected from six wetland types, and the levels, depth distributions, risk, and influencing factors of metals (i.e., As, Cd, Cr, Ni, Cu, Pb, Zn, Mn, Al, and Fe) were analyzed. The results showed that the concentrations of As, Cd, Cr, Ni, Zn, and Al in more than 70% of the soil samples were higher than the background value of Liaoning Province. The concentration of As decreased with distance from the estuary, while that of Cr was higher downstream of Liaohe. The spatial distributions of Cd, Ni, Cu, Pb, and Zn were similar. The concentrations of most metals in the topsoil were higher than those in the subsoil. According to the Nemerow pollution index, higher pollution was observed in the area far away from the Liaohe River and Bohai Sea for the topsoil layer, while for the subsoil layers, higher pollution was observed in the area near the Liaohe estuary. The correlation analysis showed that the wetland type was clearly correlated with Cd, Cu, Al, and S. The concentrations of Cd, Pb, Zn, C, N, P, and S and the electrical conductivity obviously decreased with soil depth, while the concentration of Mn was positively correlated with soil depth. Mn was negatively correlated with total organic carbon (TOC), total nitrogen (TN), and total phosphorus (TP), whereas Cd, Pb, and Zn showed positive correlation with TOC, TN, and total sulfur (TS). The general linear model indicated that wetland type had a significant effect on As, Cd, Ni, Cu, Pb, Zn, Al, and Fe (p< 0.01), while depth had a significant effect on Cd, Cr, and Pb (p< 0.01). The findings of this work will contribute to pollution control and ecosystem health conservation of the Liaohe Delta.

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Section: Effect Of Depth On the Metal Concentration In Soilmentioning

confidence: 99%

Characteristics and influencing factors of metal distribution in different wetlands of the Liaohe Delta, Northeastern China

Zhang

Qin

et al. 2022

Front. Mar. Sci.

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“…Table 2 showed that soil had a significant effect on CH 4 during the first 14 d of cultivation (p < 0.01). The source and abundance of microplastics are closely related to human activities [66]. Due to intensive and complex human activities in the Poyang Lake basins, microplastics in sediments are mainly debris [38].…”

Section: Concentration Of Ch 4 In Poyang Lake and Paddy Soilmentioning

confidence: 99%

“…In addition, according to data analysis in this study, microplastics have no significant impact on the salt marsh and mangrove soil (Table 1). Soil texture significantly affects soil greenhouse gas emissions [66]. Therefore, CO 2 in saltwater ecosystem is not sensitive to microplastics, like when it is in a freshwater ecosystem, and is greatly affected by soil type.…”

Section: Concentration Of Co 2 In Intertidal and Mangrove Forestsmentioning

confidence: 99%

Production Potential of Greenhouse Gases Affected by Microplastics at Freshwater and Saltwater Ecosystems

Zhang

Zhou

et al. 2022

Atmosphere

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Currently, microplastic pollution poses a great threat to diverse ecosystems. Microplastics can potentially change soil characteristics and impact soil microorganisms, and then affect the production of CO2, CH4 and other greenhouse gases. However, experimental study on different ecological soils is lacking. Herein, we experimentally analyzed the CO2 and CH4 production potential affected by four types of microplastics in freshwater (Poyang Lake in Jiangxi province, paddy soil in Hunan province) and saltwater (Salt marsh in Shandong province, mangrove soil in Fujian province) ecosystems. Microplastics promoted CO2 production, of which polyethylene terephthalate (PET) had the greatest impact. In our study, the microplastics that had the greatest impact on CH4 concentration emissions were high-density polyethylene (1276 umol·g−1·L−1), followed by polyvinyl chloride (384 umol·g−1·L−1), polyethylene terephthalate (198 umol·g−1·L−1), and polyamide (134 umol·g−1·L−1). In addition, the largest impact on CO2 concentration emissions was displayed by polyethylene terephthalate (2253 umol·g−1·L−1), followed by polyvinyl chloride (2194 umol·g−1·L−1), polyamide (2006 umol·g−1·L−1), and high-density polyethylene (1522 umol·g−1·L−1). However, the analysis results based on one-way ANOVA showed that CO2 emission was most significantly affected by soil properties rather than microplastics types. In comparison, the influencing factor on CH4 production changed from soil types to the interaction between soil types and microplastics, and finally to the microplastics with the increase in incubation time. Further, by comparing CO2 and CH4 production and Global Warming Equivalent (GWE) affected by microplastics, freshwater ecosystems were more sensitive than saltwater. For all the soil types used in this study, high-density polyethylene had the greatest impact on CH4 production potential. In conclusion, our study provided basic data for further understanding the effects of microplastics on soil greenhouse gas emissions from different sources.

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“…Problems regarding ecological degradation have emerged along with the continuous increase in anthropogenic effects in wetlands (Jahan & Strezov 2018, Kükrer et al 2015, Loska & Wiechuła 2003, Ozkan & Buyukisik 2012, Töre et al 2021. One of the main causes of ecological degradation is toxic element contamination (Di Beneditto et al 2019, Fural et al 2020, Islam et al 2021, Kowalska et al 2020, Wu et al 2022. Elements with high toxicity can remain intact in the ecosystem for a long time and cannot be purified by treatment systems (Al-Solaimani et al 2022, Kumar et al 2022, Ustaoğlu et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Element-based ecological and human health risk assessment in a lagoon system in a densely populated basin

Aykır

Fural

Kükrer

et al. 2023

OandHS

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This study analysed the ecological deterioration and health risk in sediment samples taken from Dalyan and Poyraz Lagoons in the Karacabey floodplain of Turkey, which is under pressure from agriculture, industry and settlement activities. Multi-element analyses were performed with ICP-MS on the surface and core sediment samples from the lagoons. Total organic carbon, chlorophyll degradation products and carbonate analyses were performed to determine the transport and illuviation dynamics of the elements. While Pb and Zn showed moderate enrichment at some sampling points, no enrichment of the other elements was detected. According to ecological risk analysis data, Cd and Hg posed a moderate ecological risk at some sampling points. The modified hazard quotient data indicated very high contamination of Ni, a high level of As contamination and significant Cr contamination. A carcinogenic health risk was detected from Ni, Cr and As due to the lithological characteristics of the basin. It was concluded that the lithological characteristics, the agricultural and mining activities carried out in the Susurluk Basin – which is drained by Koca Stream – and domestic and industrial waste contributed to the higher element concentrations in the Karacabey floodplain.

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Pollution levels and toxicity risks of heavy metals in different reed wetland soils following channel diversion in the Yellow River Delta

Cited by 5 publications

References 53 publications

Characteristics and influencing factors of metal distribution in different wetlands of the Liaohe Delta, Northeastern China

Characteristics and influencing factors of metal distribution in different wetlands of the Liaohe Delta, Northeastern China

Production Potential of Greenhouse Gases Affected by Microplastics at Freshwater and Saltwater Ecosystems

Element-based ecological and human health risk assessment in a lagoon system in a densely populated basin

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