Spatial distribution, pollution assessment, and source identification of heavy metals in the Yellow River

Xie, Fuyu; Yu, Miao-Cheng; Yuan, Quanzi; Meng, Ying Shirley; Qie, Yukang; Shang, Ziming; Luan, Fubo; Zhang, Dalei

doi:10.1016/j.jhazmat.2022.129309

Cited by 44 publications

(10 citation statements)

References 42 publications

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“…The potentially toxic element contamination in urban rivers worldwide has reached a critical stage due to rapid industrialization and modernization . These coexisting pollutants, including As, Cd, and Pb, demand special attention because of their high bioavailability, strong mobility, and tendency to bioaccumulation and/or biomagnification in the food chain or web, − resulting in severe health effects such as visceral damage and a weakened immune system .…”

Section: Introductionmentioning

confidence: 99%

Reducing Arsenic, Cadmium, and Lead Exposure in Urban Areas via Limiting Nutrient Discharges into Rivers

Wang,

Bian,

Shen

et al. 2023

ACS EST Water

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Urban rivers are subjected to potentially toxic element pollution, which is concentrated in river sediments and poses a risk to hydrobiosis and human health. Reducing the accumulation of potentially toxic elements in sediments is a sustainable way to mitigate this risk. In this study, the field sampling of river sediments in Tongxiang, China, to characterize their eutrophication indicators and As, Cd, and Pb concentrations was conducted to assess the potential exposure risks. A combination of statistical analysis and machine learning techniques was employed to identify the drivers of potentially toxic element accumulation in the sediments. Results indicate that eutrophication is the key factor contributing to potentially toxic element accumulation in sediments. The random forest model, with R 2 values of 0.434, 0.790, and 0.798 for As, Cd, and Pb, respectively, provided the best prediction of potentially toxic element concentration. TP, TOC, and TN had the most significant impact on As, Cd, and Pb accumulation in sediments, respectively. The scenario analysis revealed that a 20% and 50% decrease in the eutrophication index of sediments resulted in an average reduction of 7.50% and 7.88% in As content, 18.92% and 45.95% in Cd content, and 14.67% and 35.21% in Pb content, respectively. Our study provides valuable information for policymakers to develop strategies for preventing and controlling potentially toxic element pollution in urban areas.

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Section: Introductionmentioning

confidence: 99%

Reducing Arsenic, Cadmium, and Lead Exposure in Urban Areas via Limiting Nutrient Discharges into Rivers

Wang,

Bian,

Shen

et al. 2023

ACS EST Water

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“…6−8 It has been proved that these longterm metal pollutions in rivers were tightly associated with increasing anthropogenic activities, such as urbanization and industrialization, 9−11 mineral resource exploitation, 12,13 and agricultural activities. 14,15 Furthermore, as the sink and source of trace metals in rivers, the sediments can immobilize the metals for an extended period 16,17 but remobilize them under environmental disturbances. 18−20 This phenomenon has been frequently observed during periodic flooding.…”

Section: Introductionmentioning

confidence: 99%

“…In 2012, the European Environment Agency reported that trace metals were the cause of 20% of the European rivers with poor chemical status . Recently, the high health and ecological risks from metal river pollution were still reported in developing countries. − It has been proved that these long-term metal pollutions in rivers were tightly associated with increasing anthropogenic activities, such as urbanization and industrialization, − mineral resource exploitation, , and agricultural activities. , Furthermore, as the sink and source of trace metals in rivers, the sediments can immobilize the metals for an extended period , but remobilize them under environmental disturbances. − This phenomenon has been frequently observed during periodic flooding. , These source-sink dynamics of trace metals in rivers pose another chronic threat to the river ecosystem. To understand the long-term variation in metal pollution in river systems, it is essential to clarify the primary driving forces from multiple anthropogenic and environmental disturbances.…”

Section: Introductionmentioning

confidence: 99%

Bayesian-Based Approaches to Exploring the Long-Term Alteration in Trace Metals of Surface Water and Its Driving Forces

Wang

Hua

Zhang

et al. 2023

Environ. Sci. Technol.

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Trace metal pollution poses a serious threat to the aquatic ecosystem. Therefore, characterizing the long-term environmental behavior of trace metals and their driving forces is essential for guiding water quality management. Based on a long-term data set from 1990 to 2019, this study systematically conducted the spatiotemporal trend assessment, influential factor analysis, and source apportionment of trace elements in the rivers of the German Elbe River basin. Results show that the mean concentrations of the given elements in the last 30 years were found in the order of Fe (1179.5 ± 1221 μg·L–1) ≫ Mn (209.6 ± 181.7 μg·L–1) ≫ Zn (52.5 ± 166.2 μg·L–1) ≫ Cu (5.3 ± 5.5 μg·L–1) > Ni (4.4 ± 8.3 μg·L–1) > Pb (3.3 ± 4.4 μg·L–1) > As (2.9 ± 2.3 μg·L–1) > Cr (1.8 ± 2.4 μg·L–1) ≫ Cd (0.3 ± 1.1 μg·L–1) > Hg (0.05 ± 0.12 μg·L–1). Wavelet analyses show that river flow regimes and flooding dominated the periodic variations in metal pollution. Bayesian network suggests that the hydrochemical factors (i.e., TOC, TP, TN, pH, and EC) chemically influenced the metal mobility between water and sediments. Furthermore, the source apportionment computed by the Bayesian multivariate receptor model shows that the given element contamination was typically attributed to the geogenic sources (17.5, 95% confidence interval: 13.1–17.6%), urban and industrial sources (22.1, 18.0–27.2%), arable soil erosion (24.2, 16.4–31.5%), and historical anthropogenic activities (35.2, 32.8–43.3%). The results provided herein reveal that both the hydrochemical influence on metal mobility and the chronic disturbance from anthropogenic activities caused the long-term variation in trace metal pollution.

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“…Pollution and metal accumulation in agricultural soils recently became a global issue because heavy metals are non-biodegradable, persistent, and toxic [1]. The accumulation of metals poses a grave threat to human and animal health and soil and water ecosystems [2][3][4][5] The accumulation of heavy metals in agricultural soils can cause severe health problems throughout the food chain [6].…”

Section: Introductionmentioning

confidence: 99%

Ecological Risk Assessment and Spatial Distribution of Heavy Metals of Agricultural Soils in Nganjuk Regency, Indonesia

Sukarjo¹,

Handayani²,

Zu’amah³

2022

IOP Conf. Ser.: Earth Environ. Sci.

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This research measures the lead, cadmium, copper, nickel, chromium, and arsenic in the paddy fields in Nganjuk Regency. Moreover, this research identifies the effect of these metals to the environment and their location. 105 topsoil samples were collected. The AAS was utilized to ascertain the elemental composition of the soil samples. Numerous soil pollution and ecological risk indices, such as Igeo, PI, IPI, PLI, and PERI, were used to analyze the situation. Spline interpolation with ArcGIS 10.2 was used to study metal distribution. The metal content (mg/kg) in Pb, Cd, Co, Ni, Cr, and As was 10.01, 0.77, 9.60, 5.46, 3.61, and 2.79, respectively. These pollutants had pollution index values of between 0.59 and 2.56 and 0.05 and 0.56 on the lower end of the scale. With an average of 1.10−6, the pollutant load index suggests that all samples are safe. The paddy fields in the research region have an average PERI score of 91.48, indicating a low ecological risk. Most metals researched under agriculturally safe levels will be highly valuable for establishing control and remediation measures in paddy fields.

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Spatial distribution, pollution assessment, and source identification of heavy metals in the Yellow River

Cited by 44 publications

References 42 publications

Reducing Arsenic, Cadmium, and Lead Exposure in Urban Areas via Limiting Nutrient Discharges into Rivers

Reducing Arsenic, Cadmium, and Lead Exposure in Urban Areas via Limiting Nutrient Discharges into Rivers

Bayesian-Based Approaches to Exploring the Long-Term Alteration in Trace Metals of Surface Water and Its Driving Forces

Ecological Risk Assessment and Spatial Distribution of Heavy Metals of Agricultural Soils in Nganjuk Regency, Indonesia

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