Formation and transformation of manganese(III) intermediates in the photochemical generation of manganese(IV) oxide minerals.

abstract：:The objective of this study was to evaluate all congeners of polychlorinated biphenyls (PCBs) in human serum samples. Concentrations of all PCB congeners in the serum of 87 volunteers were determined by high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS). The participants consisted of 47 m...

journal_title：Chemosphere

authors： Park H,Lee SJ,Kang JH,Chang YS

更新日期：2007-08-01 00:00:00

abstract：:Discharge of Cr(VI)-containing industrial effluents leads to the pollution of surface waters and ground waters. In this study, Cr(VI) was first reduced by Na2SO3 or FeSO4 and then biochar generated from peanut straw at 500 °C was used to remove the Cr(III). Results indicated that the reduction of Cr(VI) by Na2SO3 must...

journal_title：Chemosphere

authors： Pan JJ,Jiang J,Xu RK

更新日期：2014-04-01 00:00:00

abstract：:Roundup Original® (RD) is a glyphosate-based herbicide used to control weeds in agriculture. Contamination of Amazon waters has increased as a consequence of anthropogenic pressure, including the use of herbicides as RD. The central goal of this study was to evaluate the toxic effects of RD on juveniles of tambaqui (C...

journal_title：Chemosphere

authors： Braz-Mota S,Sadauskas-Henrique H,Duarte RM,Val AL,Almeida-Val VM

更新日期：2015-09-01 00:00:00

abstract：:Sediments contaminated by Hg and As from two historical mining areas have been deposited in the Nalón estuary (Asturias, northern Spain) since 1850. Total mercury (Hgtotal) concentrations in the sediments range from 0.20 μg g-1 to 1.33 μg g-1, most of it in the form of sulphides. Concentrations of methylmercury (303.2...

journal_title：Chemosphere

authors： Garcia-Ordiales E,Covelli S,Rico JM,Roqueñí N,Fontolan G,Flor-Blanco G,Cienfuegos P,Loredo J

更新日期：2018-05-01 00:00:00

abstract：:In the Ag(II)/Ag(I) based mediated electrochemical oxidation (MEO) process, the spent waste from the electrochemical cell, which is integrated with the scrubber columns, contains high concentrations of precious silver as dissolved ions in both the anolyte and the catholyte. This work presents an electrochemical develo...

journal_title：Chemosphere

authors： Chandrasekara Pillai K,Chung SJ,Moon IS

更新日期：2008-11-01 00:00:00

abstract：:Engineered nanomaterials (ENMs) are being incorporated into a variety of consumer products due to unique properties that offer a variety of advantages over bulk materials. Understanding of the nano-specific risk associated with nano-enabled technologies, however, continues to lag behind research and development, regis...

journal_title：Chemosphere

authors： Martin DP,Melby NL,Jordan SM,Bednar AJ,Kennedy AJ,Negrete ME,Chappell MA,Poda AR

更新日期：2016-11-01 00:00:00

abstract：:The nature and composition of dissolved organic matter (DOM) strongly influences its binding properties to heavy metals and thus their fate, mobility and toxicity in aquatic environments. Fluorescence spectroscopy with parallel factor analysis (PARAFAC) was used to characterize DOM exuded by the cosmopolitan freshwate...

journal_title：Chemosphere

authors： McIntyre AM,Guéguen C

更新日期：2013-01-01 00:00:00

abstract：:A study was made of the influence of the application of sewage sludge on the degradation of pesticides in the soil. Two kinds of sludge were used, with different characteristics, one from an urban treatment plant and one from a food processing plant. Three organophosphorus insecticides, fenitrothion, diazinon and dime...

journal_title：Chemosphere

authors： Sánchez ME,Estrada IB,Martínez O,Martín-Villacorta J,Aller A,Morán A

更新日期：2004-11-01 00:00:00

abstract：:Associations between air pollution and blood pressure (BP) traits can be modified by several candidate genes, which might explain differences in individual genetic susceptibility. Based on recent evidence hypothesized to link air pollution and BP traits, we examined whether the polymorphisms of CDH13-a candidate gene-...

journal_title：Chemosphere

authors： Kim HJ,Seo YS,Sung J,Son HY,Yun JM,Kwon H,Cho B,Kim JI,Park JH

更新日期：2019-03-01 00:00:00

abstract：:Studies assessing chromium phytoextration from natural waters rarely consider potential implications of chromium speciation in the presence of ubiquitous humic substances. Therefore, the present study investigated the influence of environmentally relevant concentration of humic acid (TOC = 10 mg L(-1)) on chromium spe...

journal_title：Chemosphere

authors： Kalčíková G,Zupančič M,Jemec A,Gotvajn AŽ

更新日期：2016-03-01 00:00:00

abstract：:Two-photon resonance enhanced multiphoton ionization (REMPI) has been shown to be a unique ionization method for mass spectrometry, exhibiting both high sensitivity and chemical selectivity. Because REMPI is a gas-phase method, its applications have been limited either to direct analysis of vapor phase samples, or in ...

journal_title：Chemosphere

authors： Oser H,Coggiola MJ,Young SE,Crosley DR,Hafer V,Grist G

更新日期：2007-04-01 00:00:00

abstract：:Iron species have essential influence on the environmental/geochemical behaviors of arsenic species in water and soil. Colloidal ferric hydroxide (CFH) induces photooxidation of arsenite (As(III)) to arsenate (As(V)) in water at neutral pH through surface complexation and ligand-to-metal charge transfer (LMCT). Howeve...

journal_title：Chemosphere

authors： Huang X,Peng Y,Xu J,Wu F,Mailhot G

更新日期：2021-01-01 00:00:00

abstract：:Perfluorinated compounds (PFCs) are man-made fluorinated hydrocarbons, which are very persistent in the environment. Since the early 1980s, the usage of PFCs has sharply increased for a wide array of industrial and commercial applications. Being the most important PFC, perfluorooctane sulfonate (PFOS) has received muc...

journal_title：Chemosphere

authors： Zhao YG,Wong CK,Wong MH

更新日期：2012-10-01 00:00:00

abstract：:The objective of the present study was firstly acute toxicity bioassay of arsenic on common carp (Cyprinus carpio) and then the development of natural sorbent beds (clinoptilolite and pumice) to reduce bioconcentration of arsenic in muscle tissue were considered in comparative evaluation. In this regard, the acute tox...

journal_title：Chemosphere

authors： Ghadersarbazi Z,Ghiasi F,Ghorbani F,Johari SA

更新日期：2019-06-01 00:00:00

abstract：:Ecotoxicological data and potential impact of chlorpyrifos (CPF) in the region are scarce for prescribing safety limits. Therefore, toxicity and sublethal impact of CPF on fish fingerlings of Mugil cephalus (3.0 ± 1.2 cm) and Chanos chanos (3.0 ± 1.5 cm) were studied. Acute and chronic toxicity tests were conducted by...

journal_title：Chemosphere

authors： Marigoudar SR,Nagarjuna A,Karthikeyan P,Mohan D,Sharma KV

更新日期：2018-11-01 00:00:00

abstract：:High levels of the commonly used, effective bactericide Triclosan was found in three out of five randomly selected human milk samples. It was also found in the bile of fish exposed to municipal wastewater and in wild living fish from the receiving waters of the three wastewater treatment plants. ...

journal_title：Chemosphere

authors： Adolfsson-Erici M,Pettersson M,Parkkonen J,Sturve J

更新日期：2002-03-01 00:00:00

abstract：:A novel and economic sequential process consisting of precipitation, adsorption, and oxidation was developed to remediate actual rare-earth (RE) wastewater containing various toxic pollutants, including radioactive species. In the precipitation step, porous air stones (PAS) containing waste oyster shell (WOS), PASWOS,...

journal_title：Chemosphere

authors： Cui M,Jang M,Kang K,Kim D,Snyder SA,Khim J

更新日期：2016-02-01 00:00:00

abstract：:Fungal laccase has aroused great concern in rapidly removing estrogens because of its ability to accelerate humification and oligomerization. Here, the effect of two humic acids (HAs) on the reaction kinetics and products distribution of 17α-ethynylestradiol (EE2) in laccase-initiated humification and coupling was sys...

journal_title：Chemosphere

authors： Sun K,Chen H,Zhang Q,Li S,Liu Q,Si Y

更新日期：2020-11-01 00:00:00

abstract：:Carbon based solid waste materials have been intensively investigated for the preparation of solid acid catalysts through sulfonation, but the acidity varies significantly depending on the material. In this study, the role of aromatic hydrogen in sulfonation with concentrated H2SO4 was investigated using petroleum cok...

journal_title：Chemosphere

authors： Xiao Y,Hill JM

更新日期：2020-06-01 00:00:00

abstract：:Bisphenol A (BPA) is a high-production-volume industrial chemical that facilitates the development of breast cancer. However, the molecular mechanism associated with BPA-induced breast cancer cell proliferation and migration remains elusive. In our study, we exposed MCF-7 cells to different concentrations of BPA (0.1,...

journal_title：Chemosphere

authors： Deng P,Tan M,Zhou W,Chen C,Xi Y,Gao P,Ma Q,Liang Y,Chen M,Tian L,Xie J,Liu M,Luo Y,Li Y,Zhang L,Wang L,Zeng Y,Pi H,Yu Z,Zhou Z

更新日期：2020-12-15 00:00:00

abstract：:Organophosphate esters (OPEs) are ubiquitous contaminants in the environment, but little is known on the occurrence and distribution of OPEs in the background atmosphere of urban environments. In this study, air samples were collected from two sites in the city of Shanghai, a typical fast developing metropolitan of Ea...

journal_title：Chemosphere

authors： Ren G,Chen Z,Feng J,Ji W,Zhang J,Zheng K,Yu Z,Zeng X

更新日期：2016-12-01 00:00:00

abstract：:An investigation was made on the adsorption and kinetics of photodegradation of potassium hydrogenphthalate in an aqueous suspension of TiO(2). Two models, Langmuir and Freundlich, were used to describe the adsorption process and the model proposed by Langmuir-Hinshelwood (L-H) was employed to describe the kinetics of...

journal_title：Chemosphere

authors： Valente JP,Padilha PM,Florentino AO

更新日期：2006-08-01 00:00:00

abstract：:To achieve efficient biological nutrients removal at low temperature, a modified sequencing batch reactor (SBR) was developed at 10 °C by extending sludge retention time (SRT), shortening aerobic stage and compensating anoxic stage. The average removal rates of ammonium (NH4+-N), total nitrogen (TN) and total phosphor...

journal_title：Chemosphere

authors： Huang W,Gong B,He L,Wang Y,Zhou J

更新日期：2020-04-01 00:00:00

abstract：:The start up and performance of the Anammox process were tested in sequencing batch reactors with two different configurations: a bubble column (SBR-B) and a gas-lift reactor (SBR-G). Different off-gas upflow velocities were tested (3.53-12.3 cm min(-1)) in order to expose the biomass to different shear conditions and...

journal_title：Chemosphere

authors： Arrojo B,Figueroa M,Mosquera-Corral A,Campos JL,Méndez R

更新日期：2008-08-01 00:00:00

abstract：:During live fire training exercises, large amounts of explosives are consumed. Low order detonations of high explosive payloads result in the patchy dispersal of particles of high explosive formulations over large areas of firing range soils. Dissolution of explosives from explosive formulation particles into soil por...

journal_title：Chemosphere

authors： Furey JS,Fredrickson HL,Richmond MJ,Michel M

更新日期：2008-01-01 00:00:00

abstract：:Although atrazine has been banned in the European Union since 2007 it still persists in soil from where it can enter the food chain. Milk-producing animals accumulate atrazine from contaminated feed and water and since large quantities of milk and milk products are consumed its quality should be constantly monitored. ...

journal_title：Chemosphere

authors： Barchanska H,Jodo E,Price RG,Baranowska I,Abuknesha R

更新日期：2012-06-01 00:00:00

abstract：:The aim of this study was to characterize biomarker responses, haematological profiles, structural changes and uptake in juvenile rainbow trout exposed to clotrimazole (CLO) at three concentrations (0.01 - [lowest environmentally relevant concentration], 1.0 [highest environmentally relevant concentration] and 10 μg L...

journal_title：Chemosphere

authors： Burkina V,Zamaratskaia G,Oliveira R,Fedorova G,Grabicova K,Schmidt-Posthaus H,Steinbach C,Domingues I,Golovko O,Sakalli S,Grabic R,Randak T,Zlabek V

更新日期：2016-09-01 00:00:00

abstract：:Dietary exposure to polybrominated diphenyl ethers (PBDEs) of the population in the Region of Valencia, Spain, was assessed. A group of 320 composite samples of different fatty foods was collected and analyzed, including the following: vegetable oils, and foods of animal origin such as (a) fish and seafood, (b) eggs, ...

journal_title：Chemosphere

authors： Pardo O,Fernández SF,Quijano L,Marín S,Villalba P,Corpas-Burgos F,Yusà V

更新日期：2020-07-01 00:00:00

abstract：:This paper manifests the potential viability of soil as a cost-free catalyst in photo-Fenton-like processes for treating pharmaceuticals at large scale. Naturally available soil without any cost intensive modification was utilized as a catalyst to degrade pharmaceuticals, specifically ornidazole (ORZ) and ofloxacin (O...

journal_title：Chemosphere

authors： Changotra R,Rajput H,Dhir A

更新日期：2017-12-01 00:00:00

abstract：:Magnetic-cored dendrimers (MDs) with amino groups were prepared with the formation of poly(amidoamine) dendrimer on the surface of magnetite nanoparticles (MNPs). The experiment involved the binding of four different heavy metal ions including Pb (II), Cu (II), Zn (II), and Cr (VI). Density functional theory (DFT) cal...

journal_title：Chemosphere

authors： Kim HR,Boukhvalov DW,Lee SJ,Park JW

更新日期：2018-11-01 00:00:00