Hydrochemical Characteristics and Risk Assessment of Tongzi River, Guizhou Province, Southwest China DOI Open Access

Jiemei Lü,

Yanling An

Water, Год журнала: 2023, Номер 15(4), С. 802 - 802

Опубликована: Фев. 18, 2023

This study collected 31 water samples from the Tongzi River, Guizhou Province, Southwest China to conduct a risk assessment understand hydrochemical characteristics and major ion sources of irrigation drinking quality their effects on human health. The results showed that abundance in River is Ca2+ (66%) > Mg2+ (24%) K++Na+ (10%) for cations HCO3− (75%) SO42−(21%) Cl− (4%) anions. Additionally, type Ca-Mg-HCO3, controlled by carbonate weathering. Methods including ratios, principal component analysis (PCA), correlation (CA) were used analyze source main ions river water. PC1, with most significant variance (54.9%), decides affected positive loadings SO42− (0.92), pH (0.85), (0.80), (0.72), Na+(0.66), NO3− (0.65), K+ (0.57). PC2 explains 19.2% total variance, strong Na+ (0.75), (0.63) (0.59). (0.84) (0.85) exhibits high PC3, explaining 9.3% variance. intensive agricultural activities basin nitrate NO3−, whereas was mainly derived mining activities. lower concentrations Na+, K+, coal combustion, domestic wastewater discharge, fertilizer applications. area rock weathering; natural processes (mainly weathering rocks) still origin Ca2+, Mg2+, HCO3−. Moreover, United States Salinity Laboratory (USSL) diagram Wilcox 100% fell C2S1 zones, had good suitability irrigation. health (HRA) HQNO3− much larger than HQNH4+ indicated pollution dominated non-health hazards. About 6.5% tributaries represented an unacceptable infants children, HQ value children always higher adults. non-carcinogenic riverine very noteworthy, especially tributaries.

Язык: Английский

New tracer for anthropogenic pollution in the atmosphere: Stable potassium isotopes in rainwater DOI
Rui Qu, Guilin Han, Jie Zeng

и другие.

Journal of Cleaner Production, Год журнала: 2024, Номер 435, С. 140574 - 140574

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

17
Significant influence of urban human activities and marine input on rainwater chemistry in a coastal large city, China DOI
Jie Zeng, Guilin Han, Qixin Wu

и другие.

Water Research, Год журнала: 2024, Номер 257, С. 121657 - 121657

Опубликована: Апрель 22, 2024

Язык: Английский

Процитировано

17
Chemical evolution of rainfall in China's first eco-civilization demonstration city: Implication for the provenance identification of pollutants and rainwater acid neutralization DOI
Jie Zeng, Guilin Han, Qixin Wu

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 910, С. 168567 - 168567

Опубликована: Ноя. 21, 2023

Язык: Английский

Процитировано

24
Potentially toxic elements in rainwater during extreme rainfall period in the megacity Beijing: Variations, sources, and reuse potential DOI
Jie Zeng, Guilin Han, Shitong Zhang

и другие.

Atmospheric Environment, Год журнала: 2023, Номер 318, С. 120242 - 120242

Опубликована: Ноя. 26, 2023

Язык: Английский

Процитировано

23
Machine learning driven forecasts of agricultural water quality from rainfall ionic characteristics in Central Europe DOI Creative Commons
Safwan Mohammed, Sana Arshad, Bashar Bashir

и другие.

Agricultural Water Management, Год журнала: 2024, Номер 293, С. 108690 - 108690

Опубликована: Янв. 21, 2024

Sodium hazard poses a critical threat to agricultural production globally and regionally which has been previously predicted from ground or surface water. Monitoring rainwater quality in this context is ignored but essential for water management central Europe. Our study focused predict sodium adsorption ratio (SAR) 1985 2021 ten ionic species of (pH, EC, Cl-, SO4−2, NO3-, NH4+, Na+, K+, Mg2+, Ca2+) employing four machine learning (random forest (RF), gaussian process regression (GU), random subspace (RSS), artificial neural network-multilayer perceptron (ANN-MLP)) methods at three stations K-puszta (KP), Farkasfa (FAK), Nyirjes (NYR) Hungary, Exploratory data analysis was performed using the Mann-Kendall test, Pearson correlation, principal component (PCA). Rainwater composition revealed highest percentage SO4−2 ions i.e., 21 31%, followed by 10 15% Na+ ions. test significant (p < 0.05) increasing trend SAR portraying it serious limiting production. Machine results model runs all algorithms prediction KP station proved efficacy ANN-MLP as superior with RMSE range 0.02 0.05, RF 0.14 0.19 scenario 2 (SC-2) (Na+, Ca2+). Validation best-selected algorithm (ANN-MLP) also low 0.08 0.05 both FAK NYR stations, respectively. Hence, efficiency forecasting proves be meticulous tool enhancing practices Central Europe resource crop future.

Язык: Английский

Процитировано

11
Nitrate dynamics and source identification of rainwater in Beijing during rainy season: Insight from dual isotopes and Bayesian model DOI
Jie Zeng, Guilin Han, Shitong Zhang

и другие.

The Science of The Total Environment, Год журнала: 2022, Номер 856, С. 159234 - 159234

Опубликована: Окт. 6, 2022

Язык: Английский

Процитировано

37
Coupled controls of the infiltration of rivers, urban activities and carbonate on trace elements in a karst groundwater system from Guiyang, Southwest China DOI Creative Commons
Jinxiong Zhou, Qixin Wu, Shilin Gao

и другие.

Ecotoxicology and Environmental Safety, Год журнала: 2022, Номер 249, С. 114424 - 114424

Опубликована: Дек. 15, 2022

Hydrogeochemical processes of trace elements (TEs) are considerable significance to river water and groundwater resource assessment utilization in the karst region. Therefore, seven TEs were analyzed investigate their contents, spatial variations, sources, controlling factors Guiyang, a typical urban area southwest China. The results showed that average content (e.g., As = 1.44 ± 0.47 μg/L andCo 0.15 0.06 μg/L) was higher than 0.51 0.42 0.09 0.05 μg/L). types samples dominated by Ca/Mg-HCO3 Ca/Mg-Cl types, while those Ca-Cl types. Principal component analysis (PCA) correlation (CA) analyses indicated Mn study related infiltration. end-member further revealed infiltration (As 0.86-1.81 μg/L, Cl/SO42- 0.62-0.89) activities 0.21-0.32 0.51-0.89) two main As, Co, Mn) area. In addition, ion ratios weathering carbonates also an important control on hydrogeochemistry Fe Guiyang waters. This element (TE) contents greatly associated with input recharge, provided new perspective for understanding geochemical behavior surface bodies, which will help protection areas

Язык: Английский

Процитировано

31
Buffer zone-based trace elements indicating the impact of human activities on karst urban groundwater DOI
Xindi Zhang, Shilin Gao, Qixin Wu

и другие.

Environmental Research, Год журнала: 2023, Номер 220, С. 115235 - 115235

Опубликована: Янв. 5, 2023

Язык: Английский

Процитировано

21
Spatial Distribution and Sources of Rare Earth Elements in Urban River Water: The Indicators of Anthropogenic Inputs DOI Open Access

Xi Gao,

Guilin Han, Jinke Liu

и другие.

Water, Год журнала: 2023, Номер 15(4), С. 654 - 654

Опубликована: Фев. 8, 2023

Rare earth element (REE) concentrations in river water reflect both local geological background and the intensity of anthropogenic activities. The increasing demand for high-tech applications is accompanied by an increase REEs environments, especially urban regions. Therefore, dissolved a typical (Yongding River) were analyzed to reveal influence inputs. It was found that sum REE (ΣREE) 6.27~86.26 ng L−1 (mean 31.05 L−1). spatial distribution significantly affected natural processes human To eliminate effect upstream land use on downstream measurements, this study established 500 m buffer zone alongside identified origin through correlations among proportions within zone, population density, REEs. Post-Archean Australian Shale (PAAS)-normalized revealed pronouncedly positive Gd anomalies range 0.30~20.16 all samples. Spearman correlation analysis indicated proportion cultivated positively correlated with most A three-dimensional tracer system via Gdanth, NO3−/Na+ Cl−/Na+ characterize impact sewage treatment plants, hospitals agricultural activities water. results indicate acceleration urbanization, abnormal can be considered as sensitive indicator assess ecosystems.

Язык: Английский

Процитировано

18
Heavy Metal Accumulation and Source Apportionment in Urban River under Ecological Restoration: Relationships with Land Use and Risk Assessment Based on Monte Carlo Simulation DOI

Xi Gao,

Guilin Han, Jinke Liu

и другие.

ACS Earth and Space Chemistry, Год журнала: 2023, Номер 7(3), С. 642 - 652

Опубликована: Март 1, 2023

The assessment of heavy metal (HM) distributions, sources, and potential risks is the first step high-efficiency contaminant degradation sustainable water resource utilization. In this study, nine HMs from a typical urban river (Yongding River) in Beijing, China was implemented. Results evidence that mean HM concentrations decreased order: Mo > V As Zn Ni Mn Fe Cr Co. concentration As, Zn, Mn, Fe, has significant increase middle reaches, indicating agricultural industrial pollution sources nearby. Three factors were extracted via principal component analysis, suggesting Ni, Co, Mo, are mainly derived anthropogenic inputs. likely originated natural while stemmed mixed origins. contamination levels moderate concentrated on Cr. Strong correlations among regional land use also confirmed result. noncarcinogenic carcinogenic evaluated based four age groups by Monte Carlo simulation. Although results environmental modeling revealed weak risk adults (6.20 × 10–5), for juveniles cannot be ignored. Target hazard quotients analysis implied relatively low when consuming fish tissues rivers, inorganic acceptable. total, study provided powerful support restoring contaminations maintaining management.

Язык: Английский

Процитировано

16