Some naturally occurring radionuclides (NORM) in a river affected by acid mining drainages.

abstract：:In this work, we develop a model able to predict the equilibrium separation of gases due to differences in their molecular weights and the action of gravity. The separation of H, He, O, and N2 with altitude is a characteristic phenomenon of the heterosphere. The model is able to qualitatively recreate the compositiona...

journal_title：Chemosphere

authors： Blay V,Barrios Rivas JL,Xiao Z

更新日期：2019-10-01 00:00:00

abstract：:Electrolytic reactive barriers (e(-) barriers) consist of closely spaced permeable electrodes installed across a groundwater contaminant plume in a permeable reactive barrier format. Application of sufficient potential to the electrodes results in sequential oxidation and reduction of the target contaminant. The objec...

journal_title：Chemosphere

authors： Wani AH,O'Neal BR,Gilbert DM,Gent DB,Davis JL

更新日期：2006-02-01 00:00:00

abstract：:The Environmental Specimen Bank has proposed a list of matrices recommended for collection from terrestrial and marine areas as well as from inland waterbodies. There have been taken into consideration the most common and available species, chiefly in western Europe. Poland is making ready for co-operation with ESB to...

journal_title：Chemosphere

authors： Golimowski J,Dmowski K

更新日期：1997-05-01 00:00:00

abstract：:The effect of a common plant alkaloid, caffeine, on the release and plant uptake of some polycyclic aromatic hydrocarbons (PAHs) in soils was investigated. Cucurbita pepo (ssp. pepo cv. Gold Rush) was grown in PAH-spiked media in the presence and absence of caffeine. Solubility tests initially confirmed the ability of...

journal_title：Chemosphere

authors： Navarro RR,Ichikawa H,Morimoto K,Tatsumi K

更新日期：2009-08-01 00:00:00

abstract：:A method was developed to study reductive transformation of highly brominated diphenyl ethers (BDEs). The method development is a part of a broader project where it will be used to determine the susceptibility of environmental pollutants to reductive conditions, in an attempt to create a scheme for determination of ch...

journal_title：Chemosphere

authors： Granelli L,Eriksson J,Athanasiadou M,Bergman Å

更新日期：2011-02-01 00:00:00

abstract：:Various graphene-based nanoadsorbents, including graphenes, graphene oxides, reduced graphene oxides, and their nanocomposites, have been widely studied as potential adsorbents due to their unique physicochemical properties, such as structural variability, chemical strength, low density, and the possibility of large s...

journal_title：Chemosphere

authors： Kim S,Park CM,Jang M,Son A,Her N,Yu M,Snyder S,Kim DH,Yoon Y

更新日期：2018-12-01 00:00:00

abstract：:This present study reports that reactive oxygen species (ROS), which mainly consist of hydroxyl (OH) and superoxide (O2(-)) radicals generated by the photocatalysis of TiO2 nanoparticles (TiO2 NPs) in suspension, can be quantitatively measured by the colorimetric probe-assisted spectrometric method without any interfe...

journal_title：Chemosphere

authors： Kim C,Park HJ,Cha S,Yoon J

更新日期：2013-11-01 00:00:00

abstract：:The electrochemical oxidation of the biotic degradation products of the textile dye C.I. Acid Orange 7 (AO7) was achieved using a boron doped diamond electrode (BDD). Tests were performed with model solutions of the biotic degradation products, sulphanilic acid (SA) and 1-amino-2-naphthol (AN), and also with real effl...

journal_title：Chemosphere

authors： Carvalho C,Fernandes A,Lopes A,Pinheiro H,Gonçalves I

更新日期：2007-04-01 00:00:00

abstract：:Corrosion and runoff from zinc-coated materials and outdoor structures is an important source for the dispersion of zinc in the environment. Being part of a large inter-disciplinary research project, this study presents the bioavailability of zinc in runoff water immediately after release from the surface of 15 differ...

journal_title：Chemosphere

authors： Heijerick DG,Janssen CR,Karlèn C,Wallinder IO,Leygraf C

更新日期：2002-06-01 00:00:00

abstract：:The effects of multiple heavy metal stress on the activity of antioxidative enzymes and lipid peroxidation were studied in leaves and roots of two mangrove plants, Kandelia candel and Bruguiera gymnorrhiza, grown under control (10 per thousand NaCl nutrient solution) or five levels of multiple heavy metal stress (10 p...

journal_title：Chemosphere

authors： Zhang FQ,Wang YS,Lou ZP,Dong JD

更新日期：2007-02-01 00:00:00

abstract：:Glyphosate [N-(phosphonomethyl)-glycine] is a broad-spectrum, non-selective, post-emergence herbicide that is widely used in agricultural. We studied, in vitro, changes in the microbial activity of typical Hapludult and Hapludox Brazilian soils, with and without applied glyphosate. Glyphosate was applied at a rate of ...

journal_title：Chemosphere

authors： Araújo AS,Monteiro RT,Abarkeli RB

更新日期：2003-08-01 00:00:00

abstract：:In this study, we used a 1H NMR based metabolomics strategy combined with gene expression analysis to determine the combined effects of gestational exposure of mice to BPA (10 μg/kg body weight by subcutaneous injection) and arsenic (10 ppb sodium arsenite in drinking water). Results showed that exposure to either BPA...

journal_title：Chemosphere

authors： Wang D,Zhu W,Yan S,Meng Z,Yan J,Teng M,Jia M,Li R,Zhou Z

更新日期：2018-11-01 00:00:00

abstract：:Six strains of white rot fungi were tested for their biodegradation ability of low chlorinated polychlorinated biphenyl (PCB) commercial mixture (Delor 103) in real soil system. Phanerochaete chrysosporium and Trametes versicolor did not show any ability to degrade PCBs in soil. On the contrary, four strains of Pleuro...

journal_title：Chemosphere

authors： Kubátová A,Erbanová P,Eichlerová I,Homolka L,Nerud F,Sasek V

更新日期：2001-04-01 00:00:00

abstract：:In this work, the fate of diclofenac (DCF) during permanganate (Mn(VII)) oxidation was investigated at environmentally relevant pH conditions (from 5 to 9). The batch experiments showed that the kinetics of the Mn(VII)/DCF reaction follows a second-order rate law with an apparent rate constant of 1.57±0.02 M(-1) s(-1)...

journal_title：Chemosphere

authors： Cheng H,Song D,Liu H,Qu J

更新日期：2015-10-01 00:00:00

abstract：:Fluorescent whitening agents (FWAs) are highly soluble and poorly biodegradable ingredients used in laundry detergents and in industries (paper, textile, plastic manufacturing). They are likely to pass through biological wastewater treatment systems. The presence of FWAs in a mountain river was detected by monitoring ...

journal_title：Chemosphere

authors： Assaad A,Pontvianne S,Pons MN

更新日期：2014-04-01 00:00:00

abstract：:The hygroscopicity of aerosols is dependent upon their chemical composition. When their chemical compositions are altered, the water content in aerosols often changes, which may further modify phase behaviour. However, the study of phase behaviour dependence on chemical reactions is still limited. In this work, intern...

journal_title：Chemosphere

authors： Yang H,Wang N,Pang SF,Zheng CM,Zhang YH

更新日期：2019-01-01 00:00:00

abstract：:This study aimed to evaluate the effect of veterinary pharmaceuticals (VPs) used to control endo- and ectoparasites in ruminants, on the survival and reproduction of the collembolan species Folsomia candida. Standard ecotoxicological tests were conducted in Tropical Artificial Soil and the treatments consisted of incr...

journal_title：Chemosphere

authors： Zortéa T,Segat JC,Maccari AP,Sousa JP,Da Silva AS,Baretta D

更新日期：2017-04-01 00:00:00

abstract：:Pristine hydrochar is a carbonaceous material that can sorb hexavalent chromium (Cr(VI)), a kind of toxic pollutants and difficult to removal, from aqueous solution but its capacity is limited. With the goal of improving this ability, two modified hydrochars were produced by co-hydrothermal carbonization (200 °C, 7h) ...

journal_title：Chemosphere

authors： Li F,Zimmerman AR,Hu X,Gao B

更新日期：2020-12-01 00:00:00

abstract：:In many countries, rice grains and complementary medicines are important sources of arsenic (As) consumption. The objective of this study was to compare the speciation and bioaccessibility of As in selected rice grains and complementary medicines. A number of rice grain samples, and a range of herbal and ayurvedic med...

journal_title：Chemosphere

authors： Bolan S,Kunhikrishnan A,Chowdhury S,Seshadri B,Naidu R,Ok YS

更新日期：2017-09-01 00:00:00

abstract：:This paper presents accurate predictions of ecologically important properties of nitroaromatic compounds and their derivatives, including vapor pressure, Henry's law constants, water solubility, octanol/water partition coefficients, heats of formation and ionization potentials. The proposed technique of calculations w...

journal_title：Chemosphere

authors： Qasim M,Kholod Y,Gorb L,Magers D,Honea P,Leszczynski J

更新日期：2007-10-01 00:00:00

abstract：:Inhibition of phytoplankton by allelochemicals released by submerged macrophytes is reported to be one of the mechanisms that maintain a clear-water state in shallow lakes. In order to elucidate this mechanism, the ability of six polyphenols and two long-chain fatty acids to induce the generation of reactive oxygen sp...

journal_title：Chemosphere

authors： Wang J,Zhu J,Liu S,Liu B,Gao Y,Wu Z

更新日期：2011-10-01 00:00:00

abstract：:Perfluorooctanoic acid (PFOA) is a dispersive persistent organic pollutant in the environment. Accumulating reports suggest that PFOA is toxic to human lymphocytes; however, the toxicological effects of PFOA on these cells remain largely unclear. In this study, ultra-performance liquid chromatography (UPLC)-based meta...

journal_title：Chemosphere

authors： Li R,Guo C,Tse WKF,Su M,Zhang X,Lai KP

更新日期：2020-01-01 00:00:00

abstract：:Over the past ten years, total mercury (THg) levels have been surveyed in Alaskan wildlife and fish as part of the Arctic Monitoring and Assessment (AMAP). Beyond these studies there is little historical data on THg levels in important subsistence species for people in Alaska. A survey of THg in caribou hair from arch...

journal_title：Chemosphere

authors： Gerlach SC,Duffy LK,Murray MS,Bowers PM,Adams R,Verbrugge DA

更新日期：2006-12-01 00:00:00

abstract：:PM2.5 was measured and analyzed between 2014 and 2015 in Seoul, and its sources were identified with a positive matrix factorization (PMF) to characterize chemical constituents and sources of the measured PM2.5. To verify policy interventions in reducing PM2.5 levels in Korea, the results were compared with previously...

journal_title：Chemosphere

authors： Park EH,Heo J,Kim H,Yi SM

更新日期：2020-07-01 00:00:00

abstract：:In this paper, a general kinetic model for degradation processes of surfactants is proposed. The model equation is v = K2S2 + K1S + K0, where v is the substrate consumption rate in the biodegradation process, S is the surfactant concentration in the medium and K2, K1, and K0 are kinetic constants. From this general ex...

journal_title：Chemosphere

authors： Quiroga JM,Perales JA,Romero LI,Sales D

更新日期：1999-11-01 00:00:00

abstract：:Heavy metals accumulated by aquatic crustaceans in environmental studies are normally investigated using the whole body burden, with little regard paid to uptake in different tissues, to potential gender of life stage differences, or to the influence of nutrition on the test organism. This is likely to give erroneous ...

journal_title：Chemosphere

authors： Pastorinho MR,Telfer TC,Soares AM

更新日期：2009-06-01 00:00:00

abstract：:Indoor air quality has become a growing concern due to the increasing proportion of time people spend indoors, combined with reduced building ventilation rates resulting from an increasing awareness of building energy use. It has been well established that potted-plants can help to phytoremediate a diverse range of in...

journal_title：Chemosphere

authors： Pettit T,Irga PJ,Torpy FR

更新日期：2018-10-01 00:00:00

abstract：:The distribution of HCH isomers, DDT analogues and selected PCB congeners in pork organs collected from the same individuals raised in Romanian farms was investigated. Organochlorine pesticides (HCHs and DDTs) were the principal contaminants in all samples, while PCB concentrations were low, in accordance with previou...

journal_title：Chemosphere

authors： Covaci A,Gheorghe A,Schepens P

更新日期：2004-08-01 00:00:00

abstract：:Toxic sodium cyanate is always present in cyanide-contaminated waste. A new technology for the efficient decomposition of toxic sodium cyanate by hematite was first proposed in this study. The decomposition of sodium cyanate under various atmospheres has been studied. Studies show that sodium cyanate decomposes above ...

journal_title：Chemosphere

authors： Dong K,Xie F,Chang Y,Chen C,Wang W,Lu D,Gu X

更新日期：2020-10-01 00:00:00

abstract：:A woody-biochar was added to waste biomass during a composting process. The resulting compost-char was amended to a metal contaminated soil and two plant species, L. perenne and E. sativa, were grown in a pot experiment to determine 1) plant survival and stress factors, 2) uptake of metals to plants and, 3) chemical c...

journal_title：Chemosphere

authors： Teodoro M,Trakal L,Gallagher BN,Šimek P,Soudek P,Pohořelý M,Beesley L,Jačka L,Kovář M,Seyedsadr S,Mohan D

更新日期：2020-03-01 00:00:00