The Distribution and Enrichment of Trace Metals in the Rainfall‐Driven Supratidal Wetlands of Tianjin, China

Liu, Fude; Zhang, Sen; Dong, Yanjun; Zheng, Yuqi; Li, Desheng; Wang, Minghua

doi:10.1002/clen.201700200

Cited by 3 publications

(3 citation statements)

References 52 publications

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“…3f). Notably, previous studies 5, [23][24][25][26][27][28][29][30][31][32][33][34][35] have consistently reported that Zn concentrations are higher than their local background values in the coastal areas of Bohai Sea. The enrichment of Zn seems to be higher in Bohai Bay than in Laizhou Bay.…”

Section: Distribution Of Heavy Metalsmentioning

confidence: 99%

“…In some previous studies, Mn had been selected as a reference element due to its robust relationships with other heavy metals. 25,29 Thus, Cu and Zn in site 2 may have similar sources with Mn. However the cluster analysis have shown that the two heavy metals belonging to different categories (Fig.…”

Section: Correlation and Homology Analysis For Heavy Metalsmentioning

confidence: 99%

“…24 Thus, rainfall-driven wetland is oen observed in the supratidal zone of Northern China, and its hydrologic regime mainly depends on rainfall events in wet seasons. 25 Compared with intertidal wetlands and offshore waters, rainfall-driven supratidal wetlands are more easily disturbed by human activities. This differentiation poses a challenge in investigating the accumulation risk and sources of heavy metals in supratidal wetlands.…”

Section: Introductionmentioning

confidence: 99%

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Accumulation risk and sources of heavy metals in supratidal wetlands along the west coast of the Bohai Sea

Liu

Zheng

et al. 2019

RSC Adv.

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Section: Distribution Of Heavy Metalsmentioning

confidence: 99%

Section: Correlation and Homology Analysis For Heavy Metalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accumulation risk and sources of heavy metals in supratidal wetlands along the west coast of the Bohai Sea

Liu

Zheng

et al. 2019

RSC Adv.

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Using Sediment Bacterial Communities to Predict Trace Metal Pollution Risk in Coastal Environment Management: Feasibility, Reliability, and Practicability

Xia,

Liu,

Yang

et al. 2024

Toxics

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The distribution of trace metals (TMs) in a continuous water body often exhibits watershed attributes, but the tidal gates of the coastal rivers may alter their transformation and accumulation patterns. Therefore, a tidal gate-controlled coastal river was selected to test the distribution and accumulation risks of Al, As, Cr, Cu, Fe, Mn, Ni, Sr, and Zn in the catchment area (CA), estuarine area (EA), and offshore area (OA). Associations between TMs and bacterial communities were analyzed to assess the feasibility of using bacterial parameters as ecological indicators. The results showed that As and Cr were the key pollutants due to the higher enrichment factor and geoaccumulation index, reaching slight to moderate pollution levels. The Nemero index was highest in EAs (14.93), indicating a higher pollution risk in sediments near tide gates. Although the TM dynamics can be explained by the metal-indicating effects of Fe and Mn, they have no linear relationships with toxic metals. Interestingly, the metabolic abundance of bacterial communities showed good correlations with different TMs in the sediment. These results highlight bacterial community characteristics as effective biomarkers for assessing TM pollution and practical tools for managing pollution control in coastal environment.

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Effects of Tide Dikes on the Distribution and Accumulation Risk of Trace Metals in the Coastal Wetlands of Laizhou Bay, China

Xia,

Ling,

Fang

et al. 2024

Water

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Tide dikes play a key role in preventing seawater intrusion in coastal regions; however, their effects on trace metal distribution and accumulation remain unclear. This study explored the distribution and enrichment of trace metals (As, Cr, Cu, Ni, Pb, and Zn) inside and outside tide dikes in Laizhou Bay. The accumulative risk of these metals in the two habitats was analyzed by combining their sources. The results show that the average enrichment factor, geological accumulation index, and potential ecological risk index of As in the outside habitat are significantly higher than those in the inside habitat (p < 0.001), which indicates that the tide dike effectively reduces the migration of As from outside to inside habitats. For other trace metals, no statistical differences were found between the two habitats. Based on principal component analysis and redundancy analysis of trace metals and their correlations with soil physicochemical properties, we speculated that Cr and Zn may derive from soil parent material and rock weathering. Cu, Pb, and Ni may be related to atmospheric nitrogen deposition resulting from nearby agricultural activities, and As may come from industrial wastewater or transport through seagoing rivers. The findings suggest that tide dikes effectively block exogenous trace metals but not those from natural sources.

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The Distribution and Enrichment of Trace Metals in the Rainfall‐Driven Supratidal Wetlands of Tianjin, China

Cited by 3 publications

References 52 publications

Accumulation risk and sources of heavy metals in supratidal wetlands along the west coast of the Bohai Sea

Accumulation risk and sources of heavy metals in supratidal wetlands along the west coast of the Bohai Sea

Using Sediment Bacterial Communities to Predict Trace Metal Pollution Risk in Coastal Environment Management: Feasibility, Reliability, and Practicability

Effects of Tide Dikes on the Distribution and Accumulation Risk of Trace Metals in the Coastal Wetlands of Laizhou Bay, China

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