Quantitative analysis and risk assessment of heavy metal pollution in an intensive industrial and agricultural region

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 289, P. 117634 - 117634

Published: Jan. 1, 2025

In recent decades, the study of heavy metal pollution has garnered significant attention owing to advancement industrialization. To explore contamination metals in an intensive industrial and agricultural region Shandong province, China, 101 surface soil samples 80 edible crop parts were collected from vicinity park. A positive matrix factorization-multilayer perceptron model (PMF-MLP) was established identify sources quantify complex relationships between sources, types, status. Index human health-risk methods used assess pollution. The results show that (1) lead (Pb) cadmium (Cd) may originate industrial-traffic mixed surrounding park, whereas copper (Cu) is derived southern farmland. (2) Pollution primarily concentrated central northern regions area. analysis PMF-MLP indicates activities account for majority (79.6 %) risk associated with Among them, industrial, traffic, livestock farms, types contribute 49.3, 24.5, 5.80 % total risk, respectively. (3) oral intake represents primary route entry into body. Cd Cu are most elements adverse health, contributing carcinogenic non-carcinogenic risks both adults children, will provide references formulation control strategies curb

Language: Английский

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Potential risk of heavy metals release in sediments and soils of the Yellow River Basin (Henan section): A perspective on bioavailability and bioaccessibility

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: unknown, P. 117799 - 117799

Published: Jan. 1, 2025

Language: Английский

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Assessment of heavy metal pollution in sediments from the urban section of Yihe River, Linyi City, China

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0318579 - e0318579

Published: Feb. 13, 2025

The Yihe River is the largest mountain torrent river in Shandong Province, which plays an important role flood control, irrigation and climate regulation. Due to impacts of upstream urban domestic sewage, as well industrial agricultural wastewater, Linyi City section expected have a high risk metal pollution. Sediments are main reservoir potential release source metals (metalloid) systems. Assessment sediments can identify anthropogenic In this study, 25 sediment samples were collected from its tributaries, concentration As, Cd, Cr, Cu, Ni, Pb Zn quantified by inductively coupled plasma mass spectrometry (ICP-MS), Hg was determined atomic fluorescence (AFS). pollution levels evaluated determining contamination factor, load index, geoaccumulation ecological assessment toxicity index. Correlation analysis absolute principal component-multiple linear regression (APCS-MLR) used conduct apportionment. Pb, Zn, detected all samples. Overall, stream mostly within environmental background value, overall state no slightly polluted, while tributaries polluted state. Cd two pollutants surface study area, with average content 1.65 1.11 times respectively. Most areas free pollution, low risk. risks (Suhe River, Benghe Liuqinghe River) center island (Yihe North Island) assessed presenting toxicity. Source showed that As mainly come natural sources activities, result transportation industry. results help us understand distribution sediments, also provide management support local departments relevant national departments.

Language: Английский

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Assessment of Heavy Metal Contamination, Distribution, and Source Identification in Surface Sediments from the Mid–Upper Reaches of the Yellow River

Toxics, Journal Year: 2025, Volume and Issue: 13(3), P. 150 - 150

Published: Feb. 23, 2025

River sediments serve as both a source and reservoir for potential heavy metal pollutants, providing critical insights into the health of aquatic ecosystems. Heavy contamination in global river systems poses significant risks to human through food chain. This study investigates contents metals, including Fe, Mn, Cu, Ni, Zn, Cr, Pb, Cd, surface sediment samples collected from mid–upper reaches Yellow River, which flows provinces Qinghai, Gansu, Ningxia, Inner Mongolia, Shaanxi, Henan. We analyzed spatial distribution characteristics these metals assessed their pollution levels by identifying sources contamination. The findings reveal elevated concentrations Cr Cd with particularly severe observed certain urban areas. are primarily linked activities related production daily life. offers valuable guidance local control prevention strategies.

Language: Английский

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Ecological Risk Assessment, Spatial Distribution and Source Identification of Heavy Metals in Sediments of Henan Reach of Yellow River, China

Soil and Sediment Contamination An International Journal, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: March 14, 2025

Language: Английский

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