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toxicsubstances, etc ; adsorption; cesium radioisotopes; microfiltration; nanofiltration; polyamides; reverse osmosis; tannins; viability; wastewater; Show all 10 Subjects
Abstract:
... There is a growing interest in advanced materials that can effectively treat wastewater contaminated with radioactive cesium (¹³⁷Cs), which is an extremely hazardous material. Here, we report a new class of Cs-adsorptive membranes compactly assembled with Cs-adsorptive Prussian blue (PB) particles. The PB particle assembly was formed via an in-situ interfacial reaction between two PB precursors in ...
María José Santoyo Treviño; Marina Pereira-Coelho; Andrea Guadalupe Rodríguez López; Sergio Zarazúa; Luiz Augusto dos Santos Madureira; Tomasz Majchrzak; Justyna Płotka-Wasylka
toxicsubstances, etc ; breast milk; child health; children; environment; environmental exposure; metabolism; metabolites; toxicity; urine; xenobiotics; Show all 11 Subjects
Abstract:
... This review covers key information related to the effects of pesticides on fetal and child health. All humans are exposed to environmental toxicants, however child's health, due to their high vulnerability, should be of special concern. They are continuously exposed to environmental xenobiotics including a wide variety of pesticides, and other pollutants. These compounds can enter the child's body ...
toxicsubstances, etc ; chronosequences; community structure; genetic markers; humans; mercury; methanogens; methanotrophs; methylmercury compounds; microbial activity; microbial communities; ontogeny; peat soils; peatlands; risk; sulfates; wildlife; Show all 17 Subjects
Abstract:
... Peatlands are generally important sources of methylmercury (MeHg) to adjacent aquatic ecosystems, increasing the risk of human and wildlife exposure to this highly toxic compound. While microorganisms play important roles in mercury (Hg) geochemical cycles where they directly and indirectly affect MeHg formation in peatlands, potential linkages between net MeHg formation and microbial communities ...
toxicsubstances, etc ; diazo compounds; electrosynthesis; hydrazones; Show all 4 Subjects
Abstract:
... An electrochemical synthesis of diazo compounds from hydrazones in yields as high as 99% was performed. This method was elaborated as a useful synthetic method and demonstrated on various diazo compounds (24 examples). Apart from exhibiting an efficiency that matched that of commonly used harsh and toxic chemical oxidants, this reaction is practically simple to set up, requires mild conditions, an ...
toxicsubstances, etc ; air; bacteria; journals; pathogens; Show all 5 Subjects
Abstract:
... Contaminants, such as pathogens or non-living substances, can spread through the interaction of their carriers (e.g., air and surfaces), which constitute a network. The structure of such networks plays an important role in the contaminant spread. We measured the contaminant spreading efficiency in different networks using a newly defined parameter. We analyzed basic networks to identify the effect ...
toxicsubstances, etc ; environment; polymers; streams; voltammetry; Spain; Show all 6 Subjects
Abstract:
... The uptake of nutrients or toxicants by different organisms in aquatic systems is known to correlate with different fractions of the nutrient's or toxicant's total concentration. These fractions can be provided by different analytical techniques, from which the better correlation is expected to be found for those with a characteristic length comparable to that in the considered organism uptake. An ...
toxicsubstances, etc ; accidents; algorithms; models; topology; Europe; Show all 6 Subjects
Abstract:
... Estimation of a source term, i.e. release rate, of atmospheric radionuclide emissions is of key interest for nuclear emergency response and further accident analysis. The source term estimate is, however, often very inaccurate due to biases in atmospheric transport and used meteorological analysis. We propose a method for atmospheric plume bias correction which uses not only concentrations modeled ...
toxicsubstances, etc ; anions; derivatization; face; journals; light; Show all 6 Subjects
Abstract:
... BiFeO₃ (BFO) nanocage prepared by metal-organic-framework derivatization (MOF-d) was adopted as activator to first investigate the effect mechanism of visible-light on naproxen-degradation via peroxymonosulfate (PMS) activation. MOF-d BFO expressed more excellent PMS activation ability than hydrothermal-synthetic BFO, due to highly ordered mesopores. A 3.0 times higher pseudo-first-order degradati ...
toxicsubstances, etc ; algae; bioremediation; chromium; fungi; sludge; toxicity; Show all 7 Subjects
Abstract:
... Metals are necessary for plants and animals to function biologically, but presence of massive quantities can disrupt the metabolic activities in an organism’s systems. Chromium has been classified between the top 20 harmful toxic material by the Agency for Toxic Compounds and Disease Registry. So a continuous environmental monitoring and a thorough understanding about chromium are highly essential ...
toxicsubstances, etc ; ecotoxicology; homogenization; pollution; research; sediments; solvents; Show all 7 Subjects
Abstract:
... Laboratory testing with spiked sediments with organic contaminants is a valuable tool for ecotoxicologists to study specific processes such as effects of known concentrations of toxicants, interactions of the toxicants with sediment and biota, and uptake kinetics. Since spiking of the sediment may be performed by using different strategies, a plethora of procedures was proposed in the literature f ...
toxicsubstances, etc ; ammonia; chromium; environment; industrial wastewater; pH; temperature; Show all 7 Subjects
Abstract:
... As a well-known hazardous material, chromium (VI) in industrial wastewater has always attracted extensive attention. Many studies have focused on the recovery of Cr (VI) which is still challenging and received considerable interest. In this study, a novel synergistic extraction system using amide as extractant and Cyanex 272 as synergistic extractant was built to recover chromium (VI) from the APV ...
toxicsubstances, etc ; bioavailability; biometry; pollution; research; soil biota; transpiration; Show all 7 Subjects
Abstract:
... Micro(nano)plastics are emerging environmental contaminants of concern. The prevalence of micro(nano)plastics in soils has aroused increasing interest regarding their potential effects on soil biota including terrestrial plants. With the rapid increase in published studies on plant uptake and impacts of micro(nano)plastics, a review summarizing the current research progress and highlighting future ...
toxicsubstances, etc ; ammonia; ecotoxicology; embryotoxicity; estuaries; labor; pollution; research; urbanization; Show all 9 Subjects
Abstract:
... Estuaries in the world are affected by different contamination sources related to urbanisation and port/industrial activities. Identifying the substances responsible for the environmental toxicity in estuaries is challenging due to the multitude of stressors, both natural and anthropogenic. The Toxicity Identification and Evaluation (TIE) is a suitable way of determining causes of toxicity of sedi ...
toxicsubstances, etc ; Daphnia magna; acute toxicity; energy; environment; mortality; Quebec; Show all 7 Subjects
Abstract:
... Treatment of organic contaminants using the electro-Fenton (EF) process is efficient but generates toxic by-products. The aim of the present study was to assess the residual toxicity associated to the treatment of real mine effluents using EF and to perform a preliminary techno-economic analysis to compare the costs of different techniques. Two mine effluents from northern Quebec with different co ...
toxicsubstances, etc ; Copepoda; automation; diclofenac; freshwater; invertebrates; predation; sexual behavior; Show all 8 Subjects
Abstract:
... The analysis of copepod behaviour gained an increasing impetus over the past decade thanks to the advent of computer-assisted video analysis tools. Since the automated tracking consists in detecting the animal’s position frame by frame and improving signals corrupted by strong background noise, a crucial role is played by the length of the video recording. The aim of this study is to: (i) assess w ...
toxicsubstances, etc ; bioassays; biochemical pathways; denitrification; spectroscopy; thiosulfates; toxicity; turbidity; Show all 8 Subjects
Abstract:
... This study reports for the first-time the possibility of deploying gas production by thiosulfate utilizing denitrifying bacteria (TUDB) as a proxy to evaluate water toxicity. The test relies on gas production by TUDB due to inhibited metabolic activity in the presence of toxicants. Gas production was measured using a bubble-type respirometer. Optimization studies indicated that 300 mg NO3−−N/L, 0. ...
toxicsubstances, etc ; arsenic; biomarkers; blood; lead; specific gravity; urine; Uruguay; Show all 8 Subjects
Abstract:
... Food and water are common exposure sources of arsenic and lead among children. Whereas dietary sources of these toxicants are fairly well-studied, the contribution of drinking water to toxicant exposures is not well characterized in many populations, particularly in the Global South. To assess the extent to which consumption of household drinking water contributes to arsenic and lead exposure amon ...
toxicsubstances, etc ; adsorption; energy; environment; formaldehyde; human health; quantum mechanics; toxicity; Show all 8 Subjects
Abstract:
... The toxic chemical warfare agents (CWAs) are extremely harmful to the living organisms. Their efficient detection and removal in a limited time span are essential for the human health and environmental security. Twisted nanographenes have great applications in the fields of energy storage and optoelectronics, but their use as sensors is rarely described. Therefore, we have explored the sensitivity ...
toxicsubstances, etc ; groundwater; issues and policy; research; risk; surface water; England; Show all 7 Subjects
Abstract:
... Semi-quantitative GC-MS and LC-MS measurements of organic chemicals in groundwater and surface waters were used to assess the overall magnitude and contribution of the most important substances to calculated mixture hazard. Here we use GC-MS and LC-MS measurements taken from two separate national monitoring programs for groundwater and surface water in England, in combination with chronic species ...
toxicsubstances, etc ; DNA; catalase; cell membranes; energy; nitrogen; wastewater; wastewater treatment; Show all 8 Subjects
Abstract:
... Biological nutrient removal is an integral part of a wastewater treatment plant. However, the microorganism responsible for nutrient removal is susceptible to inhibition by external toxicants such as heavy metals which have the potential to completely inhibit biological nutrient removal. The inhibition is a result of the interaction between heavy metals with the cell membrane and the deoxyribonucl ...