Influences of hydrological regime on heavy metal and salt ion concentrations in intertidal sediment from Chongming Dongtan, Changjiang River estuary, China

Zhao, Jinshan; Gao, Xiaoxue; Yang, Jin

doi:10.1007/s00343-017-0191-3

Cited by 3 publications

(3 citation statements)

References 45 publications

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“…The dynamics of soil physicochemical properties have been proven as the key factors affecting the mobility of PHEs in soil [14]. Specifically, fine-grained sediments are easy to solidify PHEs in soil [53], the increase of SOM promotes PHEs accumulation [1,24], and the soluble PHEs in pore water decreases with the decreasing of soil salinity after reclamation [27].…”

Section: The Influence Of Different Land Use On Phes Enrichment In Comentioning

confidence: 99%

“…The bedrock geochemistry and human activities are in Jiangsu from 2009 to 2020. The high-intensity, rapid reclamation of coastal zones within a short time period has affected the physicochemical properties of soil in tidelands and even accelerated the rapid enrichment of pollutants [14,27]. There are over ten ports along the coast of Jiangsu Province, which undertake the transportation of numerous import and export commodities and energy (coal, petroleum and metal ore, etc.).…”

Section: Introductionmentioning

confidence: 99%

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Enrichment, Source Apportionment and Health Risk Assessment of Soil Potentially Harmful Elements Associated with Different Land Use in Coastal Tidelands Reclamation Area, Eastern China

Xin-jian

Huang

Xie

et al. 2020

IJERPH

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Coastal tidelands are important ecological habitat resources and valuable resources for agricultural land reclamation. Enrichment of potentially harmful elements (PHEs) in soil caused by anthropogenic activity is an important factor implicated in the ecological deterioration of soil in China. A total of 54 soil sample sites were selected from a 30-year reclaimed tideland and an adjoining coastal wetland. Descriptive and multivariate statistical analyses were performed to describe the enrichment, source, health risk status of eight PHEs (As, Co, Cr, Cu, Mn, Ni, Pb, and Zn) after long-term reclamation. Results indicated that after 30 years of reclamation, most soil PHEs are slightly enriched, whereas no serious threat of environmental pollution was observed. In the reclamation area, the enrichment of PHEs in the aquaculture land, industrial land, and cropland was relatively high compared with other land use types, such as tideland and halophyte land. The source analysis divided the PHEs into five categories: (1) Cu; (2) Co and Mn; (3) Cr; (4) As and Pb; (5) Zn and Ni. Cu was completely derived from natural parent materials and other elements were governed by both weathering of parent rock and human activities, including agricultural activities, industrial production, and transportation emissions. The health risk assessment showed that the soil PHEs potentially had no non-carcinogenic risk to the public, but there was an acceptable probability to have cancer due to Cr and As. Meanwhile, children are more susceptible to harm from the PHEs in soil than adults. According to the economic and social development situation in the coastal region, it is necessary to pay attention to the environmental threats of PHEs enrichment.

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Section: The Influence Of Different Land Use On Phes Enrichment In Comentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enrichment, Source Apportionment and Health Risk Assessment of Soil Potentially Harmful Elements Associated with Different Land Use in Coastal Tidelands Reclamation Area, Eastern China

Xin-jian

Huang

Xie

et al. 2020

IJERPH

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“…In addition, for soft ground in inland saline areas and along the coast, not only is the water content high, but also it is usually accompanied by a large number of erosive salt ions (e.g., sulfates, magnesium salts, etc.) [26][27]. Therefore, by applying recycled aggregate CFG piles in these areas, the evolution pattern of their performance under long-term water immersion and salt ion erosion conditions will be an important factor affecting the safety of the project.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of Cement Fly-ash Gravel piles of recycled construction and demolition waste aggregates under erosion conditions

Zhang,

Yu,

Zhang

et al. 2024

Preprint

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Construction and demolition waste (C&DW) has been mainly used in the field of building materials and road engineering, but relatively few applications in soft soil foundation treatment. This study was aimed to the performance evaluation of the Cement Fly-ash Gravel (CFG) piles using recycled C&DW aggregates in soft ground foundations in inland saline areas, in coasts with high water content and rich in a large number of erosive salt ions. In this paper, erosion experiment simulation conditions were set, the test object was recycled aggregate CFG piles, and the control group was modified aggregate CFG piles and natural aggregate CFG piles under the same conditions. Through the compressive strength test and water absorption test on the pile specimens under different erosion conditions, the changes in the strength and water content of the piles before and after the erosion were obtained. The prediction formulae of water absorption and compressive strength of the piles in the submerged environment and the compressive strength of the piles in the salt-ionized environment were proposed, which reveal the performance deterioration of the recycled aggregate CFG piles. The experimental results showed that the water absorption rate of CFG piles with recycled aggregate under long-term water immersion conditions firstly increased and then tended to stabilize with the immersion time. The change of its compressive strength firstly increased and then declined and finally tended to stabilize. The change of the compressive strength gradually decreased with the salt ion concentration under the salt ion erosion environment.

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Performance Evaluation of Cement Fly-Ash Gravel Piles of Recycled Construction and Demolition Waste Aggregate Under Erosion Conditions

Zhang,

Yu,

Zhang

et al. 2023

Preprint

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Influences of hydrological regime on heavy metal and salt ion concentrations in intertidal sediment from Chongming Dongtan, Changjiang River estuary, China

Cited by 3 publications

References 45 publications

Enrichment, Source Apportionment and Health Risk Assessment of Soil Potentially Harmful Elements Associated with Different Land Use in Coastal Tidelands Reclamation Area, Eastern China

Enrichment, Source Apportionment and Health Risk Assessment of Soil Potentially Harmful Elements Associated with Different Land Use in Coastal Tidelands Reclamation Area, Eastern China

Performance evaluation of Cement Fly-ash Gravel piles of recycled construction and demolition waste aggregates under erosion conditions

Performance Evaluation of Cement Fly-Ash Gravel Piles of Recycled Construction and Demolition Waste Aggregate Under Erosion Conditions

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