Source Apportionment and Risk Assessment of Heavy Metals in Agricultural Soils in a Typical Mining and Smelting Industrial Area

Sustainability, Journal Year: 2024, Volume and Issue: 16(4), P. 1673 - 1673

Published: Feb. 18, 2024

Source apportionment and risk assessment are critical for making effective pollution prevention control policies. The study was carried out to assess source-specific ecological human health risks associated with heavy metals in farmland soils Yingtan City based on results of receptor models. Multivariate analysis the APCS-MLR model consistently revealed that As, Ni, Cr agricultural may be mainly derived from natural sources, while contents Cu, Zn, Cd, Pb have been significantly elevated by activities. According outputs model, Cu (34.3%), Zn (67.2%), (75.1%), Cd (67.9%) primarily originated industrial activities related mineral mining non-ferrous metal smelting processes. indicated sources were primary contributor total risks, posing moderate high southern mountainous regions. Natural origins played a significant role due substantial amounts As naturally occurring soils. findings could guide development management measures

Language: Английский

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Source analysis and distribution prediction of soil heavy metals in a typical area of the Qinghai-Tibet Plateau

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112460 - 112460

Published: Aug. 8, 2024

The excessive presence of heavy metals (HMs) in soil poses a significant threat to both ecosystems and human health. Consequently, there is compelling need for quantitative analysis HMs concentration the prediction potential contamination. In this study, 58 surface samples were systematically collected from 11 different townships Luolong County. Using ArcGIS 10.7, fishing net interpolation resampling was performed obtain model data. GeoDetector employed determine key driving factors their interrelationships affecting composition. Subsequently, influential with higher explanatory power Random Forest (RF) generate contamination map. results revealed that arsenic (As), cadmium (Cd) lead (Pb) exceeded risk screening values by 8.62%, 10.34%, respectively. identified such as elevation, annual average precipitation, distance nearest river, geomorphic type natural sources, geological roads, proximity mining sites, per capita income inhabitants, total potassium content organic matter anthropogenic sources significantly influencing spatial distribution soil. interactions among primary increased capacity. By using RF predict main HMs, it found areas high probability As mainly concentrated northern, central southeast regions Regions Cd exceeding value primarily east, northeast few northern County, while likelihood Pb southwestern This study integrates stratified heterogeneity random forest mitigate overfitting HM contamination, common issue traditional machine learning methods. approach essential elucidating environmental drivers pollution, predicting high-risk complex conditions limited data, ensuring safety stability agricultural production well well-being local residents.

Language: Английский

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A remote sensing analysis method for soil heavy metal pollution sources at site scale considering source-sink relationships

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174021 - 174021

Published: June 17, 2024

Language: Английский

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Morphological, physiological, and anatomical effects of heavy metals on soil and plant health and possible remediation technologies

Soil Security, Journal Year: 2025, Volume and Issue: unknown, P. 100178 - 100178

Published: Jan. 1, 2025

Language: Английский

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Global Perspectives on Lead Contamination and Health Risks in Surface Water, Rice Grains, and Soils

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

ABSTRACT Lead (Pb), a pervasive and highly toxic metal, poses significant environmental health risks due to its extensive biogeochemical cycling, driven by anthropogenic activities. This review evaluates the hazards allied with Pb contamination in surface water bodies, soils, rice grains, based on comprehensive analysis (2015–2024) of 118, 133, 102 literature studies, respectively. The year‐wise assessment concentration bodies soils frequently exceeded their permissible limits 2015, 2017, 2018, 2019, 2020, 2022. However, mean grains consistently surpassed Codex Alimentarius limit (2.5 μg/g) across analyzed years. Geographically, Bangladesh, India, Pakistan, China for emphasizing regional vulnerabilities. Health risk indicated hazard quotient values exceeding one children adults exhibiting non‐carcinogenic risks. In dermal exposure identified as predominant pathways contributing followed ingestion, while inhalation presented lower risk. These findings emphasize imperative necessitate implementing strict regulatory frameworks preventive measures mitigate environment minimize potential impacts. study advances understanding risks, offering valuable insights targeted mitigation strategies public interventions.

Language: Английский

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Typical heavy metals in wastewater treatment plants in Nanjing, China: perspective of abundance, removal, and microbial response

Environmental Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 15

Published: Feb. 16, 2025

Heavy metals (HMs) are hazardous contaminants with persistence and bioaccumulation, attracting widespread attention. Wastewater treatment plants (WWTPs) play vital roles in the pollution control of sewage, closely related to human health biological environment. Therefore, eight HMs three typical WWTPs Nanjing were determined this study. The results revealed that Cr, Ni, Cu, Zn high-level all WWTPs. Notably, highest contents found electroplating WWTP (EWWTP) influent among WWTPs, probably causing their higher removal (19.34−55.32%) during primary treatment. In contrast, most could be removed secondary stage municipal (MWWTP) industrial (IWWTP) As (72.00−85.81%). Analogously, nutrients mainly stage, superior performance MWWTP. A decrease was observed tertiary MWWTP IWWTP compared while (0.51−29.15%) EWWTP except Hg. content sludge which more abundant than other Illumina Miseq sequencing demonstrated inhibition microbial richness diversity by wastewater. Besides, alterations community structure components also owing various sources. More similarity between MWWTP, abundance dominant genera, including Saccharimonadales (7.60−9.56%), Raineyella (5.06−7.38%), Thauera (2.48−4.45%) much IWWTP.

Language: Английский

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Contamination and source-specific health risk assessment of soil heavy metals in the middle and upper reaches of the Heihe River Basin of China

Environmental Geochemistry and Health, Journal Year: 2025, Volume and Issue: 47(4)

Published: Feb. 27, 2025

Language: Английский

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Spatial distribution, sources, and risk assessment of potentially toxic elements in cultivated soils using isotopic tracing techniques and Monte Carlo simulation

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 259, P. 115044 - 115044

Published: May 20, 2023

Potentially toxic elements (PTEs) in cultivated lands pose serious threats to the environment and human health. Therefore, improving understanding of their distinct sources environmental risks by integrating various methods is necessary. This study investigated distribution, sources, eight PTEs soils Lishui City, eastern China, using digital soil mapping, positive matrix factorisation (PMF), isotopic tracing, Monte Carlo simulation. The results showed that Pb Cd are main pollutants, which posed higher ecological area than other PTEs. Natural, mining, traffic, agricultural were identified as four determinants PTE accumulation via a PMF model combined with Pearson correlation analysis, showing contribution rates 22.6 %, 45.7 15.2 16.5 respectively. Stable isotope analysis further confirmed local mining activities affected HM accumulation. Additionally, non-carcinogenic carcinogenic risk values for children 3.18 % 3.75 respectively, exceeding acceptable levels. We also most important health (55.7 adults 58.6 children) simulations coupled model. Overall, this provides insights into pollution management control soils.

Language: Английский

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Health Risk Assessment of Heavy Metals in Soil of Lalu Wetland Based on Monte Carlo Simulation and ACPS-MLR

Water, Journal Year: 2023, Volume and Issue: 15(24), P. 4223 - 4223

Published: Dec. 7, 2023

Lalu wetland is the world’s largest plateau urban wetland. It was designated as a national-level nature reserve in China 2004 and often called “the lung of Lhasa”. serves vital recreational area for residents. Concerns have arisen about potential harm to human health due heavy metals (HMs) soil. This study assessed ecological risk HMs soil by using index geo-accumulation techniques. The findings showed that wetland’s overall level low risk. with Cd being primary pollutant. Through absolute principal component scores–multiple linear regression (APCS-MLR) model Pearson correlation analysis, three sources were identified, including traffic sources, parent material geothermal contributing 51.13%, 32.35%, 16.52%, respectively. results probabilistic assessment based on Monte Carlo simulation indicate non-carcinogenic risks are absent both adults children. However, acceptable carcinogenic present. For adults, main exposure mode through dermal contact, while children primarily exposed ingestion. Children manifest heightened vulnerability these compared As element. source-oriented (HRA) highlights contributors risks. research provide insights into current status soil, offering scientific basis restricting managing contamination wetlands.

Language: Английский

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Field application of hydroxyapatite and humic acid for remediation of metal-contaminated alkaline soil

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(9), P. 13155 - 13174

Published: Jan. 19, 2024

Language: Английский

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