Environmental Geochemistry and Health This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Development of an environmentally sustainable technique to minimize the sludge production in the textile effluent sector through an electrokinetic (EK) coupled with electrooxidation (EO) approach
This study presents an environmentally sustainable method for minimizing sludge production in the textile effluent sector through the combined application of electrokinetic (EK) and electrooxidation (EO) processes. AAS and XRF analyses reveal that utilizing acidic electrolytes in the EK method successfully eliminates heavy metals (Cu,  Mn, Zn, and Cr) from sludge, demonstrating superior efficiency compared to alkaline conditions. In addition, the total removal efficiency of COD contents was calculated following the order of EK-3 (60%), EK-1 (51%) and EK-2 (34%). Notably, EK-3, leveraging pH gradient fluctuations induced b...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Ecotoxic effect in Allium cepa due to sphalerite weathering arising in calcareous conditions
AbstractThe ecotoxic effect of Zn species arising from the weathering of the marmatite-like sphalerite ((Fe, Zn)S) inAllium cepa systems was herein evaluated in calcareous soils and connected with its sulfide oxidation mechanism to determine the chemical speciation responsible of this outcome. Mineralogical analyses (X-ray diffraction patterns, Raman spectroscopy, scanning electron microscopy and atomic force microscopy), chemical study of leachates (total Fe, Zn, Cd, oxidation –reduction potential, pH, sulfates and total alkalinity) and electrochemical assessments (chronoamperometry, chronopotentiometry, cyclic voltamme...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Hydrothermal synthesis and photocatalytic application of ZnS-Ag composites based on biomass-derived carbon aerogel for the visible light degradation of methylene blue
AbstractA facile and cost-effective hydrothermal followed by precipitation method is employed to synthesize visible light-driven ZnS-Ag ternary composites supported on carbon aerogel (CA). Extensive studies were conducted on the structural, morphological, and optical properties, confirming the successful formation of ternary nanocomposites. The obtained results evidently demonstrate the successful loading of ZnS and Ag onto the surface of the CA. High-resolution transmission electron microscopy analysis revealed that ZnS and Ag nanoparticles (AgNPs) were uniformly distributed on the surface of the CA with an average diamet...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Imprint of clay mineralogy, sesquioxides, and crop residue addition for evaluation of soil organic carbon stability and associated microbial activity in dominant soil orders of Indian subcontinent
This study highlighted the critical role of 2:1 expanding clay minerals and sesquioxides in greater stabilization of external C input compared to its 1:1 coun terpart. It also implied that the role of mineralogy or texture and sesquioxides levels in different soils (Vertisol, Mollisol, Inceptisol, Alfisol) should be prioritized while adding crop residues to reduce C footprint and enhance sequestration.Graphical abstract (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Spatial distribution of Pb and Zn in soils under native vegetation in Southeast Brazil
In this study, we aim to determine semi-total or natural and available concentrations of Pb and Zn in topsoils (0 –20 cm depth) from 337 samples under native vegetation in the State of Minas Gerais, Brazil. Additionally, we sought to interpret the spatial geochemical variability using geostatistical techniques and quality reference values for these elements in soils were established. The semi-total concentrat ions were determined by flame and graphite furnace atomic absorption after microwave-assisted nitric acid digestion method. The available concentrations were extracted using the Mehlich-I extractor and determined by...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Investigation analysis of the acute asthma risk factor and phenotype based on relational analysis with outdoor air pollutants in Xi ’an, China
AbstractAsthma is a common chronic heterogeneous disease. Outdoor air pollutants are an important cause of acute asthma. Until now, the association between the risk of acute asthma and outdoor air pollutants is unclear. And the relationship between the different phenotypes of asthma and outdoor air pollutants has not been reported. Thus, an analysis of the association between outdoor air pollutants and daily acute asthma inpatient and outpatient visits in Xi ’an, China, from January 1 to December 31, 2018, was conducted. A total of 3395 people were included in the study. The statistical analysis and relational analysis b...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Pollution and mobility of heavy metals in the soils of a typical agricultural zone in eastern China
AbstractThe pollution of heavy metals (HMs) in agricultural soils profoundly threatens national food safety, and the mobility and environmental behaviors of HMs are closely implicated in crop safety. Here, we assessed the pollution level and mobility of ten HMs and explored their environmental behaviors in the soils of three different land uses from a main crop production zone in eastern China. The concentrations of HMs in the soils were higher in the farmland than the woodland and wasteland, and Cd showed a relatively higher pollution and ecological risk levels compared to other metals. Cadmium was dominated by the reduci...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Evaluating county-level lung cancer incidence from environmental radiation exposure, PM2.5, and other exposures with regression and machine learning models
AbstractCharacterizing the interplay between exposures shaping the human exposome is vital for uncovering the etiology of complex diseases. For example, cancer risk is modified by a range of multifactorial external environmental exposures. Environmental, socioeconomic, and lifestyle factors all shape lung cancer risk. However, epidemiological studies  of radon aimed at identifying populations at high risk for lung cancer often fail to consider multiple exposures simultaneously. For example, moderating factors, such as PM2.5, may affect the transport of radon progeny to lung tissue. This ecological analysis leveraged a po...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Potentially toxic elements contamination in the water resources: an integrated risk assessment approach in the upper Citarum watershed area
This study assessed pollution levels along with ecological and health risks from Cd, Pb, Mn, Fe, Cu, Cr, and Hg contamination in river water, sediment, groundwater, and soil in Citarum’s upper watershed. In river water, the average amounts of Cd, Pb, Mn, Fe, Cu, Cr, and Hg were 0.002, 0.05, 0.092, 0.649, 0.022, 0.001, and 0.421 mg/L. In sediment, they were 7.4, 1175.1, 32,289.9, 37.3, 3.9, and 0.015 mg/kg. The mean concentrations of Cd, Pb, Mn, Fe, Cu, Cr, and Hg in groundwater were 0.004, 0.046, 0. 567, 0.366, 0.019, 0.001, and 0.177 mg/L, and in soil, BDL, 10.2, 744.6, 50,094.1, 45.6, 5.9, and 0.015 mg/kg. The rive...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Study on the solidification performance and mechanism of heavy metals by sludge/biomass ash ceramsites, biochar and biomass ash
This study uses these by-products to produce a new sludge/biomass ash ceramsite that will be used to adsorb nitrogen and phosphorus from wastewater, and solidify heavy metals in the soil while releasing Olsen P. The sludge/biomass ash ceramsites are made using sewage sludge and biomass ash in a certain ratio calcined at high temperatures and modified for the adsorption of nitrogen and phosphorus from wastewater. Sludge/biomass ash ceramsites before and after phosphorus adsorption, biochar and biomass ash were compared to analyze their heavy metal adsorption capacity and potential as phosphate fertilizer. After phosphorus a...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Assessment of environmental pollution and human health risks of mine tailings in soil: after dam failure of the C órrego do Feijão Mine (in Brumadinho, Brazil)
This study assessed the pollution and human health risks of soils impacted by the tailing spill of the CFM dam, along a sample perimeter of approximately 200 km. Based on potential ecological risk and pollution load indices, the enrichments of Cd, As, Hg, Cu, Pb and Ni in soils indicated that the Brumadinho, Mário Campos, Betim and São Joaquim de Bicas municipalities were the most affected areas by the broken dam. Restorative and reparative actions must be urgently carried out in these areas. For all contaminated areas, the children’s group indicated an exacerbated propensity to the development of carcinogenic and ...
Source: Environmental Geochemistry and Health - February 17, 2024 Category: Environmental Health Source Type: research

Assessment of health risks associated with prediction of vegetable inorganic arsenic concentrations given different soil properties
This study suggested that As-elevated soils enriched with organic matter and clay contents should be avoided when growing water spinach and amaranth, respectively. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - February 16, 2024 Category: Environmental Health Source Type: research

Ambient PM2.5 components and prevalence of chronic kidney disease: a nationwide cross-sectional survey in China
ConclusionsOur study demonstrated that long-term exposure to specific PM2.5 components including BC, SO42 −, and OM increased CKD risk in the general population. This study could provide new insights into source-directed PM2.5 control and CKD prevention. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - February 14, 2024 Category: Environmental Health Source Type: research

Toxic effects of atmospheric deposition in mining areas on wheat seedlings
AbstractStorage and transportation of coal, as well as operation of coal-fired power plants, produce amounts of metallic exhaust that may lead to different atmospheric environment in the overlapped areas of farmland and coal resource (OAFCR) environment. To investigate the effects of different atmospheric environment in the OAFCR region (north of Xuzhou) on wheat seedlings (AK-58), a box experiment was conducted and compared to an area far from the OAFCR (south of Xuzhou). The study revealed that (1) compared to the southern suburb of Xuzhou, the fresh and dry weight, activities of photosynthetic enzymes and POD of wheat s...
Source: Environmental Geochemistry and Health - February 12, 2024 Category: Environmental Health Source Type: research

Pesticide residues in drinking water treatment plants and human health risk assessment: a case study from Northern Iran
In conclusion, considering the possibility of exposure to these pesticides through other routes, simultaneously, it is suggested to carry out a study that examines the level of risk by considering all exposure routes. We also propose stricter regulations for the sale and use of pesticides in Iran.Graphical abstract (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - February 12, 2024 Category: Environmental Health Source Type: research