Two-Dimensional Monte Carlo Simulation Coupled with Multilinear Regression Modeling of Source-Specific Health Risks from Groundwater

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137309 - 137309

Published: Jan. 1, 2025

Language: Английский

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Ultrasound-Assisted Extraction Followed by Inductively Coupled Plasma Mass Spectrometry and Multivariate Profiling of Rare Earth Elements in Coffee

Foods, Journal Year: 2025, Volume and Issue: 14(2), P. 275 - 275

Published: Jan. 16, 2025

A rapid and efficient ultrasound-assisted extraction (UAE) procedure followed by inductively coupled plasma mass spectrometry (ICP-MS) was developed for the determination of 14 rare earth elements (REEs) (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu), along with yttrium (Y) scandium (Sc), in coffee samples. The method validated using certified reference material (NIST SRM 1547), recovery tests at four fortification levels, comparisons microwave-assisted digestion (MAD). Excellent accuracy precision were achieved, rates ranging from 80.1% to 112% relative standard deviations (RSD%) below 14%. Limits detection (LODs) ranged 0.2 ng/kg (Yb) 0.16 µg/kg (Nd). Total REE concentrations varied between 8.3 1.1 mg/kg, highest individual mean (µg/kg) observed Ce (11.7), La (6.0), Sc (4.7). lowest Ho (0.16), Lu (0.066), Tm (0.063). Multivariate analysis profiles 92 samples collected Serbia revealed clear distinctions ground roasted instant coffees, as well different surrogate blends. This study indicated that coffee’s geographical origin not possible due diverse types, blends, additives. However, differences suggest potential classification based on variety. REEs pose a negligible health risk consumers, HI values 4.7 × 10−8 6.3 10−6 TCR 2.6 10−14 3.5 10−12.

Language: Английский

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Hydrogeochemical Facies and Health Hazards of Fluoride and Nitrate in Groundwater of a Lithium Ore Deposit Basin

Metals, Journal Year: 2024, Volume and Issue: 14(9), P. 1062 - 1062

Published: Sept. 17, 2024

Fluoride and nitrate contamination in groundwater is a global concern due to their toxicity associated negative health effects. This study incorporated comprehensive methodology, including hydrogeochemical analysis, drinking irrigation water quality assessment, source apportionment, risk estimation of fluoride lithium ore deposit basin western Serbia. Groundwater major ion hydrogeochemistry was governed by water–rock interactions, with Ca-Mg-HCO3 identified as the predominant type. The entropy-weighted index (EWQI), sodium adsorption ratio (SAR), percentage (%Na) revealed that 95% samples were excellent good for both irrigation. Moreover, results showed fluorides geogenic origin, whereas nitrates originated from agricultural activities. Although levels relatively low, averaging 1.0 mg/L 11.1 mg/L, respectively, assessment ingestion such can still lead non-cancerous diseases. threshold one hazard exceeded 15% 35% adults children, respectively. Children more vulnerable non-carcinogenic risk, being primary contributing factor. outcomes serve reference other lithium-bearing areas guide management regional resources.

Language: Английский

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Identifying potential trace metal contamination impacts of a coal ash landfill on the largest Chesapeake Bay tributary (Chester, VA, USA)

Environmental Toxicology and Chemistry, Journal Year: 2025, Volume and Issue: 44(3), P. 802 - 811

Published: Jan. 6, 2025

Abstract Coal fly ash is a highly heterogeneous waste product that becomes concentrated with metals after combustion have been shown to act as neurotoxins and/or carcinogens in both wildlife and humans. As such, increased understanding of the presence, concentrations, potential ecosystem impacts needed. The Chesterfield power station contains more than 15 million tons located adjacent James River, which serves tributary Chesapeake Bay. Our study investigated (1) presence concentrations aluminum (Al), aresnic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), lead (Pb), selenium (Se), zinc (Zn) surface water, deep sediment samples obtained from surrounding area (2) various teleost species, using environmental DNA (eDNA) sampling. Universal cokriging was used estimate spatial variability sediments extent pollution interpreted enrichment factors (EF). Little contamination observed water compared samples. Elevated Al, As, Cd, Cr, Fe, Pb, Zn were areas immediately coal landfills. Arsenic, Pb showed EF sites landfills, suggesting due anthropogenic factors. Environmental analyses revealed 22 several identified threatened, endangered, diadromous, consumed by anglers who use River. Collectively, our results provide novel insight regarding on an important Bay watershed guidance for future risk assessment.

Language: Английский

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Influencing factors of groundwater 238U, 232Th, 40K, and rare earth element contamination: Insights from the two-dimensional Monte Carlo simulation of radiological risks

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 213, P. 117682 - 117682

Published: Feb. 17, 2025

Language: Английский

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Identification of priority sources of potentially hazardous elements from public drinking water fountains in Zajecar/East Serbia

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Two-dimensional Monte Carlo simulation of source-specific risks from PM2.5-bound polycyclic aromatic hydrocarbons in indoor and outdoor school environments

Building and Environment, Journal Year: 2025, Volume and Issue: unknown, P. 113050 - 113050

Published: April 1, 2025

Language: Английский

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