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.

A review on carbon-based biowaste and organic polymer materials for sustainable treatment of sulfonamides from pharmaceutical wastewater
AbstractFrequent detection of sulfonamides (SAs) pharmaceuticals in wastewater has necessitated the discovery of suitable technology for their sustainable remediation. Adsorption has been widely investigated due to its effectiveness, simplicity, and availability of various adsorbent materials from natural and artificial sources. This review highlighted the potentials of carbon-based adsorbents derived from agricultural wastes such as lignocellulose, biochar, activated carbon, carbon nanotubes graphene materials as well as organic polymers such as chitosan, molecularly imprinted polymers, metal, and covalent frameworks for ...
Source: Environmental Geochemistry and Health - April 3, 2024 Category: Environmental Health Source Type: research

Sediment –water exchange and risk assessment of pesticidal persistent organic pollutants in Bharathappuzha and Periyar Riverine region along the Arabian Sea
AbstractConsidering the extensive agricultural practices along the perennial rivers, viz. Periyar and Bharathappuzha of Kerala in the southwest coast of India, the first comprehensive surveillance of new and legacy organochlorine pesticides (OCPs) in surface sediment was conducted. Further, the sediment –water exchange fluxes have been elucidated. Mean concentrations of total HCH, DDT and endosulfan were 0.84 ng/g, 0.42 ng/g and 0.30 ng/g for Bharathappuzha Riverine sediment (BRS) and 1.08 ng/g, 0.39 ng/g and 0.35 ng/g for Periyar Riverine sediment (PRS). The dominanceα-HCH andβ-HCH isomers in PRS and BRS reflect...
Source: Environmental Geochemistry and Health - March 27, 2024 Category: Environmental Health Source Type: research

Health risk and pollution associated with trace metals in the waters of the Ebolowa municipal lake basin (Central Africa): evidence from hydrochemistry, quality indices, and statistical analyses
AbstractThe aim of this study was to investigate the status of trace metals (As, Cr, Cu, Ni, Pb, Fe, and Zn) and health and carcinogenic risk associated then in the Ebolowa Municipal Lake (EML) basin. To this end, 21 water samples were collected from the EML and its two tributaries, Mfoumou and Bengo ’o, and analyzed by Quantofix method (nanocolors and visiocolor ECO) by using the MACHEREY–NAGEL photometer. The data were processed using multivariate statistics. The results showed that all the physicochemical parameters (pH, EC, and TDS), with the exception of TDS, comply with were within WHO limits. The distribution of...
Source: Environmental Geochemistry and Health - March 23, 2024 Category: Environmental Health Source Type: research

Versatility of copper-iron bimetallic nanoparticles fabricated using Hibiscus rosa-sinensis flower phytochemicals: various enzymes inhibition, antibiofilm effect, chromium reduction and dyes removal
AbstractBimetallic nanoparticles (NPs) are considered superior in terms of stability and function with respect to its monometallic counterparts. Hence, in the present studyHibiscus rosa-sinensis flower extract was used to synthesis copper-iron bimetallic nanoparticles (HF-FCNPs). HF-FCNPs was characterized and its applications (biological and environmental) were determined. HF-FCNPs were spherical in shape with high percentage of copper inducted into the NPs. HF-FCNPs inhibited mammalian glucosidases [maltase (IC50: 548.71  ± 61.01 µg/mL), sucrase (IC50: 441.34  ± 36.03 µg/mL), isomaltase (IC50: 466.37  ±â...
Source: Environmental Geochemistry and Health - March 20, 2024 Category: Environmental Health Source Type: research

Environmental occurrence and assessment of organic pollutants in surface sediments of South Peninsular Malaysia
AbstractOrganic pollution continues to be an important worldwide obstacle for tackling health and environmental concerns that require ongoing and prompt response. To identify the LAB content levels as molecular indicators for sewage pollution, surface sediments had obtained from the South region of Malaysia. The origins of the LABs were identified using gas chromatography –mass spectrometry (GC–MS). ANOVA and a Pearson correlation coefficient atp <  0.05 were used in the statistical analyses of the differences between the research locations. Internal to external (I/E) ratio, homologs C13/C12, and long to short (...
Source: Environmental Geochemistry and Health - March 15, 2024 Category: Environmental Health Source Type: research

Spatial and temporal distribution characteristics and risk assessment of heavy metals in groundwater of Pingshuo mining area
This study p rovides a scientific foundation for managing groundwater quality and ensuring drinking water safety in mining areas. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - March 15, 2024 Category: Environmental Health Source Type: research

Diffusion of organochlorine (OCPs) and cypermethrin pesticides from rohu (Labeo rohita) internal organs to edible tissues during ice storage: a threat to human health
AbstractThe migration of organochlorine pesticides (OCPs) and cypermethrin residues from internal organs to edible tissues of ice-heldLabeo rohita (rohu) was investigated in this study. The liver (246  µg/kg) had the highest level of ∑OCP residues, followed by the gills (226 µg/kg), intestine (167 µg/kg), and muscle tissue (54 µg/kg). The predominant OCPs in the liver and gut were endosulfan (53–66 µg/kg), endrin (45–53 µg/kg), and dichloro-diphenyl-trichloroethane (DDT; 26–35  µg/kg). The ∑OCP residues in muscle increased to 152 µg/kg when the entire rohu was stored in ice, but they decreased to ...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Selective adsorption of Cr(VI) by nitrogen-doped hydrothermal carbon in binary system
AbstractSelective adsorption of heavy metal ions from industrial effluent is important for healthy ecosystem development. However, the selective adsorption of heavy metal pollutants by biochar using lignin as raw material is still a challenge. In this paper, the lignin carbon material (N-BLC) was synthesized by a one-step hydrothermal carbonization method using paper black liquor (BL) as raw material and triethylene diamine (TEDA) as nitrogen source. N-BLC (2:1) showed excellent selectivity for Cr(VI) in the binary system, and the adsorption amounts of Cr(VI) in the binary system were all greater than 150  mg/g, but the a...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Appropriate control measure design by rapidly identifying risk areas of volatile organic compounds during the remediation excavation at an organic contaminated site
This study also suggested appropriate control measures that are important guidance for personal protection during the remediation excavation process. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

A hybrid prediction model of dissolved oxygen concentration based on secondary decomposition and bidirectional gate recurrent unit
AbstractDissolved oxygen is one of the important comprehensive indicators of river water quality, which reflects the degree of pollution in the water body. Monitoring and predicting dissolved oxygen are an important tool for water quality management, which helps to effectively maintain water ecological balance and prevent environmental problems. A single model cannot describe the dynamic characteristics of dissolved oxygen sequence, which affects the prediction accuracy. In order to obtain more accurate dissolved oxygen prediction results, decomposition techniques are commonly used to extract the main fluctuations and tren...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Geochemical baseline establishment, pollution level and health risk assessment of soil heavy metals in the upper Xiaowen River Basin, Shandong Province, China
This study analyzed the distribution and content of eight heavy metals (Cu, Pb, Zn, Ni, Cr, As, Cd, and Hg) in 221 surface soil samples from the upper reaches of the Xiaowen River. Environmental geochemical baselines were established for the eight heavy metals, and the pollution status was assessed on the basis of these baselines and the soil background value of Weifang City. The calculation results of Nemerow pollution index and the potential ecological hazard index (PEHI)-Ri showed that the overall pollution degree and ecological hazard in the study area were at a slight level. 49% (calculated by baseline value) and 24% ...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Characteristics, source analysis, and health risk assessment of potentially toxic elements pollution in soil of dense molybdenum tailing ponds area in central China
AbstractThe issue of potentially toxic elements (PTEs) contamination of regional soil caused by mining activities and tailings accumulation has attracted wide attention all over the world. The East Qinling is one of the three main molybdenum mines in the world, and the concentration of PTEs such as Hg, Pb and Cu in the slag is high. Quantifying the amount of PTEs contamination in soil and identifying potential sources of contamination is vital for soil environmental management. In the present investigation, the pollution levels of 8 PTEs in the Qinling molybdenum tailings intensive area were quantitatively identified. Addi...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Human health risk assessment of metal-contaminated soils in Sydney estuary catchment (Australia)
AbstractSydney estuary catchment supports the largest city in Australia and provides essential eco-social and environmental services; however, the region has been influenced by extensive anthropogenic modification. Soil metal concentrations in the catchment had been studied previously; however, the current investigation was designed to determine the risk posed by these contaminants to human health. Soil metal concentrations were higher than observed in most global capitals and increased substantially in the south and south-east of the catchment and close to the central business district. Road-side soils and road dust conta...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Pre-emergence herbicides widely used in urban and farmland soils: fate, and potential human and environmental health risks
AbstractWe determined the distribution, fate, and health hazards of dimethenamid-P, metazachlor, and pyroxasulfone, the effective pre-emergence herbicides widely used both in urban and agricultural settings globally. The rate-determining phase of sorption kinetics of these herbicides in five soils followed a pseudo-second-order model. Freundlich isotherm model indicated that the herbicides primarily partition into heterogeneous surface sites on clay minerals and organic matter (OM) and diffuse into soil micropores. Principal component analysis revealed that soil OM (R2, 0.47), sand (R2, 0.56), and Al oxides (R2, 0.33) posi...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research

Assessing the spatial distribution of elemental concentrations in surface sediments of Lake Victoria, Kenya: implications for ecological health and management
AbstractLacustrine sediment quality indicates the effects of both natural and anthropogenic activities on the ecosystem and communities. Despite its ecological importance, myriad complexities, and potential contaminant sources, the spatial distribution of surficial sediments in Lake Victoria ’s Winam Gulf has never been comprehensively documented. The purpose of this study was to assess the spatial distribution, pathways, and ecological risk of metal elements in the lake using a sediment matrix. Sediment samples were collected throughout the gulf in November 2022. The concentrations o f Al, As, Cd, Co, Cr, Cu, Fe, K, Mn,...
Source: Environmental Geochemistry and Health - March 14, 2024 Category: Environmental Health Source Type: research