Ecological risk assessment and distribution of potentially harmful trace elements in lake sediments of Songnen Plain, NE China

Liu, Rongqin; Bao, Kunshan; Yao, Shuchun; Yang, Fuyi; Wang, Xiaolong

doi:10.1016/j.ecoenv.2018.07.037

Cited by 52 publications

(28 citation statements)

References 42 publications

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“…As, Cr, and Ni were recognized as the main concerning PHTEs in Lake Dali based on SQG assessment, whereas Cd likely poses high levels of ecological risk in the surface sediments from Lake Dali per the Er assessment. Cr and Ni exhibited minor contamination levels in the surface sediment, suggesting that these PHTEs were mainly present in residual forms, in agreement with reports from other lakes in China [2,6,11]. Ultramafic rocks generally exhibit Cr and Ni concentrations far higher than any other rock types.…”

Section: Discussionsupporting

confidence: 89%

“…Among these PHTEs, the concentrations of As, Cd, and Pb in the surface sediments of Lake Dali were all higher than their corresponding background values; the values of Cr, Cu, Ni, and Zn in some sites were lower than their background values [29]. Compared with the published data from China and abroad (Table 1), we found the concentrations of PHTEs in Lake Dali were much lower than in the lakes in the Eastern Plain and Yunnan-Guizhou Plateau, but they were close to those of lakes in the Mongolia-Xinjiang Plateau and the Songnen Plain and in other countries [1,6,10,12,[19][20][21].…”

Section: Spatial Distribution Of Phtesmentioning

confidence: 41%

“…To reduce the influence of the physicochemical effects on PHTE contamination, the enrichment factor (EF) is referenced as concentration data normalized by a conservative element [6,10]. Mathematically, EF is calculated as…”

Section: Pollution and Potential Ecological Risk Assessmentmentioning

confidence: 99%

“…In lacustrine environments, PHTEs primarily adsorb and accumulate on the sediments; hence, lake sediments can provide records for understanding the history and consequential risk of PHTE contamination [4,5]. Characterized by high toxicity, long persistence, and biological accumulation, the PHTE pollution of lake sediments has attracted increasing attention [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution and Ecological Risk Assessment of Potentially Harmful Trace Elements in Surface Sediments from Lake Dali, North China

Sun

Wang

2019

Water

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Potentially harmful trace element (PHTE) pollution in lakes has important implications for regional management in North China, yet is seldom investigated. Surface sediments from 13 sites in Lake Dali were collected for PHTE analysis. Combined with the enrichment factor, potential ecological risk index, and multivariate statistical analysis, the spatial distribution and ecological risk of the pollutants were studied. The results showed that the contamination levels of As, Cd, Cr, Cu, Ni, Pb, and Zn were minor to moderate. Cd, Cr, Cu, Ni, Zn, and part of Pb pollution were mainly attributed to atmospheric deposition with the development of industry in North China, and As pollution resulted from the agricultural use of chemical fertilizers and As-containing pesticides. For the overall lake, the southwest part requires the most management, and targeted measures should be tailored to mitigate the ecological risk of PHTE pollution.

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Section: Discussionsupporting

confidence: 89%

Section: Spatial Distribution Of Phtesmentioning

confidence: 41%

Section: Pollution and Potential Ecological Risk Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution and Ecological Risk Assessment of Potentially Harmful Trace Elements in Surface Sediments from Lake Dali, North China

Sun

Wang

2019

Water

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“…In some countries such as Iran, located in western Asia and comprising a land area of 1.65 million km 2 with about 20% covered by deserts 12 , due to the decrease in rainfall and climate warming most rivers have dried up in recent years, exposing the metal enriched sediments to atmosphere, resulting in air pollution through episodes of dust storms 13,14 . Jazmurian playa is located in the Sistan basin, which has changed to a desert over time, and serves as an example of climate change driven transformation of water pollution problem to an atmospheric pollution hazard.…”

mentioning

confidence: 99%

Pollution and contamination assessment of heavy metals in the sediments of Jazmurian playa in southeast Iran

Shirani

Afzali

Jahan

et al. 2020

Sci Rep

103

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Jazmurian playa was an ephemeral lake with a large catchment in southeast iran, which dried up over the last 10 years as a result of prolonged drought. As the lake was recipient of incoming industrial water with trace metals deposited to the sediment, the dust is the cause of environmental concern of the region and requires evaluation and better management. The aim of this study was to evaluate the environmental and ecological pollution of Jazmurian playa. Hence, 24 collected surface sedimentary samples were analyzed with ICP-OES. The environmental pollution indices including degree of contamination (cd), geoaccumulation index (igeo), enrichment factor (ef), pollution load index (PLI) and potential ecological risk (PER) were determined. The study revealed moderately to strongly pollution levels of pb, ni and Al, while Dy, pb, Y, Yb, Sm, te, U, cu, Mn, Sc represented moderate pollution. The EF values indicated four sites were highly enriched with Dy, Pb and Ni. The PER results showed high risk for four sites and considerable risk for others. Cluster analysis illustrated interconnection between the contaminants and the sites with major pollution at six sites. Obviously, climate change has considerable complex environmental impacts through transformation of local water and sediment pollution problem.

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Seasonal Assessment of Ecological and Human Health Risks of Trace Metals in the Saigon River Surface Water, Vietnam

Nguyen

Thai

2023

CLEAN Soil Air Water

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River water pollution with potentially toxic elements can be quantified via hydrological studies, while its potential impacts on the ecosystem and human health can be assessed via the indices of ecological risk (RI) and human health hazard (HI). This study aims to assess potential ecological and human health risks of trace‐element pollution of the Saigon River surface water, based on seasonal, position, and tidal changes. Surface water samples are taken during dry and rainy seasons and analyzed for Cu, Cr, Mn, Pb, Ni, and Zn. The trace‐element concentrations are used to compute RI and HI. Of the six elements, Cu accounted for 87.7 and 12.5% of the total variance of RI and HI, respectively. The RI and HI values are strongly correlated and are higher in dry season than in rainy season. The HI value of >1 for children suggests that children's health may be sensitive to the adverse impacts of the current status of the trace‐element pollution. Overall, the trace‐element pollution of the river surface water is at a moderate ecological risk in dry season but at a low ecological risk in rainy season. The potentially hazardous elements can have detrimental impacts on children's health in both seasons.

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Ecological risk assessment and distribution of potentially harmful trace elements in lake sediments of Songnen Plain, NE China

Cited by 52 publications

References 42 publications

Spatial Distribution and Ecological Risk Assessment of Potentially Harmful Trace Elements in Surface Sediments from Lake Dali, North China

Spatial Distribution and Ecological Risk Assessment of Potentially Harmful Trace Elements in Surface Sediments from Lake Dali, North China

Pollution and contamination assessment of heavy metals in the sediments of Jazmurian playa in southeast Iran

Seasonal Assessment of Ecological and Human Health Risks of Trace Metals in the Saigon River Surface Water, Vietnam

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