HPLC-MSn and GC-MS methods to study sunlight and UV-lamp degradations of 1-amino-5-naphthalene sulfonate.

abstract：:In the present study, the macroscopic sorption behaviors and microscopic immobilization mechanisms of Ni(II) at cryptomelane/water interfaces were explored using the combination of batch sorption technique, desorption procedure, theoretical simulation, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (...

journal_title：Chemosphere

authors： Wu C,Chen L,Yang S,Cai Y,Xu L,Wu X,Qin H,Liu Z,Chen L,Wang S

更新日期：2018-11-01 00:00:00

abstract：:Environmental pollution caused by human activities in the Yangtze River Basin (YRB), especially nitrogen pollution, has always been a hot topic. High-intensity anthropogenic nitrogen (AN) inputs have undergone some changes on account of environmental management practices in the YRB. We used the latest statistical data...

journal_title：Chemosphere

authors： Cui M,Guo Q,Wei R,Chen T

更新日期：2020-12-22 00:00:00

abstract：:As (III) is widely distributed in groundwater which is relatively harder to be removed comparing to As (V). Co-grinding Ca(OH)2 with Al(OH)3 was conducted to manufacture katoite (Ca3Al2(OH)12) for the complete removal of As(III) (concentration below drinking water standard of WHO (<10 ppb)) during one-step agitation o...

journal_title：Chemosphere

authors： Sha L,Zou Z,Qu J,Li X,Huang Y,Wu C,Xu Z

更新日期：2020-12-01 00:00:00

abstract：:Eutrophication has decreased the O(2) content and increased the NH(4)(+) availability in freshwaters. These changes may affect carbon and nitrogen transformation processes and the production of CH(4) and N(2)O, which are important greenhouse gases. We studied release of CH(4) and N(2)O from a eutrophic lake sediment u...

journal_title：Chemosphere

authors： Liikanen A,Martikainen PJ

更新日期：2003-09-01 00:00:00

abstract：:Responsible care has always been an important issue at a chemical industry like Bayer. In recent years, the company has made extensive efforts to further improve its products and processes with regard to environmental protection and safety. In this contribution, a number of examples will highlight recent achievements ...

journal_title：Chemosphere

authors： Hugl H,Gürtler C

更新日期：2001-04-01 00:00:00

abstract：:Cyanobacteria-derived toxin microcystin-LR (MCLR) has been widely investigated in its effects on normal cells, there is little information concerning its effects on cancer cells. In the present study, the SMMC-7721 human liver cancer cell line treated with MCLR was used to investigate the change of PP2A, cytoskeleton ...

journal_title：Chemosphere

authors： Wang H,Liu J,Lin S,Wang B,Xing M,Guo Z,Xu L

更新日期：2014-10-01 00:00:00

abstract：:Newspapers impregnated with NaCl mixed with various chloride metals (CuCl2, MgCl2, MnCl2, FeCl3, NiCl2, and CoCl2) and electric wire coated with polyvinyl chloride (PVC) were combusted in a well-controlled incinerator. Exhaust gas samples collected at the outlet of the incinerator were analyzed for dioxins (PCDDs, PCD...

journal_title：Chemosphere

authors： Yasuhara A,Tanaka Y,Katami T,Shibamoto T

更新日期：2005-02-01 00:00:00

abstract：:This publication presents major changes in the assessment of the risks of chemicals to human health and the environment as implemented in the second version of the European Union System for the Evaluation of Substances, EUSES 2.0. EUSES is a harmonised quantitative risk assessment tool for chemicals. It is the PC-impl...

journal_title：Chemosphere

authors： Attias L,Boccardi P,Boeije G,Brooke D,de Bruijn J,Comber M,Dolan B,Fischer S,Heinemeyer G,Koch V,Lijzen J,Müller B,Murray-Smith R,Rikken M,Tadeo J,Vermeire T

更新日期：2005-04-01 00:00:00

abstract：:Microcosm studies were undertaken to relate biomarker responses to the toxicities in soil ecosystems contaminated by phenanthrene (Phe) and pyrene (Pyr), both singly and combined. Growth inhibition, enzyme activity, MDA content, sperm count, neutral-red retention time (NRRT) and annetocin and TCTP gene transcriptions ...

journal_title：Chemosphere

authors： Wu S,Zhang H,Zhao S,Wang J,Li H,Chen J

更新日期：2012-04-01 00:00:00

abstract：:The Tam Giang-Cau Hai Lagoon, the largest in south east Asia, suffers from a great anthropogenic pressure and appears subject to a process of progressive environmental deterioration. To establish causes, history and trends of lagoon contamination, sediment samples representing three major parts of the systems were sam...

journal_title：Chemosphere

authors： Frignani M,Piazza R,Bellucci LG,Cu NH,Zangrando R,Albertazzi S,Moret I,Romano S,Gambaro A

更新日期：2007-04-01 00:00:00

abstract：:A kinetic study was carried out in a sequencing batch reactor (SBR) (125 mg NH4+-N/L) inoculated with a physiologically stable nitrifying sludge not previously acclimated to sulfur compounds and fed at different initial sulfide concentrations (2.5-20.0 mg HS--S/L). Up to 10.0 mg HS--S/L, the nitrifying process kept st...

journal_title：Chemosphere

authors： Bejarano Ortiz DI,Martínez Jardines MÁ,Cuervo López FM,Texier AC

更新日期：2020-08-01 00:00:00

abstract：:In this study, the structural alteration to DOC for a range of ultrasound treatments was investigated with chemical fractionation and UV-vis spectroscopic measurement. Ultrasound treatments were applied in continuous and pulsed modes at power levels of 48 and 84 W for effective treatment times of 5 and 15 min. Overall...

journal_title：Chemosphere

authors： Al-Juboori RA,Yusaf T,Aravinthan V,Bowtell L

更新日期：2016-02-01 00:00:00

abstract：:Zinc pyrithione (ZPT) is an extensively used microbicidal agent and its toxicity to multiple organs has been gradually recognized. However, details of the mechanism of ZPT toxicity are lacking and profile studies at metabolic level are still greatly limited. In this work we investigated the effects of ZPT on metabolic...

journal_title：Chemosphere

authors： Zhao Y,Meng F,Ding C,Yu Y,Zhang G,Tzeng C

更新日期：2020-10-01 00:00:00

abstract：:The aim of the study was to develop quantitative structure-activity relationships (QSARs) for a large group of 77 aromatic aldehydes tested for acute toxicity to the ciliate Tetrahymena pyriformis using mechanistically interpretable descriptors. The resulting QSARs revealed that the 1-octanol/water partition coefficie...

journal_title：Chemosphere

authors： Netzeva TI,Schultz TW

更新日期：2005-12-01 00:00:00

abstract：:Polysulfide was produced and tested for use as an inexpensive chemical agent for the solidification/stabilization of lead in fly ash, generating little hydrogen sulfide gas. According to the equations S(n)(2-)-->S+S(n-1)(2-) and S(n)(2-)+H(+)-->HS(-)+S(n-1), this agent was expected to achieve long-term stability of di...

journal_title：Chemosphere

authors： Sun Y,Watanabe N,Qiao W,Gao X,Wang W,Zhu T

更新日期：2010-09-01 00:00:00

abstract：:Stormwater wet detention ponds hold a permanent pool of water and offer many beneficial uses including flood mitigation, pollution prevention, downstream erosion control, increased aesthetics, and recreational uses. Although the removal of nutrients is generally low for stormwater wet detention ponds in urban areas, f...

journal_title：Chemosphere

authors： Hartshorn N,Marimon Z,Xuan Z,Cormier J,Chang NB,Wanielista M

更新日期：2016-02-01 00:00:00

abstract：:Carbohydrates have been widely reported in atmospheric aerosols, but have not previously been quantified in rainwater. We have identified and quantified a series of 11 specific compounds including monosaccharides (glucose, fructose, arabinose, galactose and pinitol), disaccharides (sucrose and trehalose), sugar alcoho...

journal_title：Chemosphere

authors： Mullaugh KM,Byrd JN,Avery GB Jr,Mead RN,Willey JD,Kieber RJ

更新日期：2014-07-01 00:00:00

abstract：:Intense reuse of treated wastewater in agriculture is practiced all over the world, especially in arid and water-scarce regions. In doing so, pharmaceutical residues in the water are irrigated to the soil and subsequently can percolate into the local aquifers. Since evaporation rates in these areas are typically high,...

journal_title：Chemosphere

authors： Zemann M,Majewsky M,Wolf L

更新日期：2016-07-01 00:00:00

abstract：:Decamethylcyclopentasiloxane, commonly known as D5 (cyclopentasiloxane) has a wide application of use across a multitude of personal care product categories. The relative volatility of D5 is one of the key properties attributed to this substance that provide for the derived performance benefits from the use of this ra...

journal_title：Chemosphere

authors： Montemayor BP,Price BB,van Egmond RA

更新日期：2013-10-01 00:00:00

abstract：:Infectious diseases have been implicated as a cause of high rates of adult mortality in southern sea otters. Exposure to environmental contaminants can compromise the immuno-competence of animals, predisposing them to infectious diseases. In addition to organic pollutants, certain trace elements can modulate the immun...

journal_title：Chemosphere

authors： Kannan K,Agusa T,Perrotta E,Thomas NJ,Tanabe S

更新日期：2006-12-01 00:00:00

abstract：:A laboratory bench procedure was developed to efficiently extract naphthenic acids from bulk volumes of Athabasca oil sands tailings pond water (TPW) for use in mammalian oral toxicity testing. This solvent-based procedure involved low solvent losses and a good extraction yield with low levels of impurities. Important...

journal_title：Chemosphere

authors： Rogers VV,Liber K,MacKinnon MD

更新日期：2002-08-01 00:00:00

abstract：:Plastics are potentially suitable for the removal of vapour phase PCDD/Fs in emissions from the electric arc furnace (EAF) steelmaking process. Three different commercial plastics, i.e. polypropylene BE170MO (Borealis A/S, Denmark), polypropylene in the form of 5 mm spheres (The Precision Plastic Ball Co. Ltd., UK) an...

journal_title：Chemosphere

authors： Ooi TC,Ewan BC,Cliffe KR,Anderson DR,Fisher R,Thompson D

更新日期：2008-08-01 00:00:00

abstract：:We determined the concentrations of organochlorine pesticides and total PCBs in plasma of nestling Wood Storks (Mycteria americana) from two colonies in Georgia in 2000. Of 20 compounds analyzed for, only p,p'-DDE was quantified in reportable concentrations, ranging from <2.0-174.0 ng/g wet weight (ww). Concentrations...

journal_title：Chemosphere

authors： Bowerman WW,Bryan AL Jr,Robinette JR,Wing JM,Wiley FE,Murugasan S

更新日期：2007-07-01 00:00:00

abstract：:Semi-volatile organic compounds (SVOCs), such as phthalates, organophosphates, and polybrominated diphenyl ethers, are emerging as an important class of pollutants that are of serious health concerns. Determining concentrations of these pollutants is of great importance for environmental and exposure studies. In this ...

journal_title：Chemosphere

authors： Li H,Bi C,Li X,Xu Y

更新日期：2020-07-01 00:00:00

abstract：:This study systematically investigated the performance of ozonation on tetrabromobisphenol A (TBBPA) degradation under different ozone dosages (5.21-83.33 μmoL/L), initial solution pH (3.0-11.0) and temperatures (10-50 °C). At the same time, the generations of inorganic products (bromide ion and bromate) under differe...

journal_title：Chemosphere

authors： Han Q,Dong W,Wang H,Ma H,Liu P,Gu Y,Fan H,Song X

更新日期：2019-11-01 00:00:00

abstract：:Fish samples purchased from Japanese markets were analyzed for Dechlorane Plus (DP)(syn-, anti-), polybrominated diphenyl ether (PBDE), and hexabromocyclododecane (HBCD)(α, γ). Twenty fish were analyzed using gas chromatography-mass spectrometry for DP and PBDE, and using liquid chromatography-tandem mass spectrometry...

journal_title：Chemosphere

authors： Kakimoto K,Nagayoshi H,Yoshida J,Akutsu K,Konishi Y,Toriba A,Hayakawa K

更新日期：2012-10-01 00:00:00

abstract：:Humic substance in compost contains various organic functional groups that can sorb metal ions through ionic force. This study used thermal treatment technology to concentrate copper in the heated residues while destroying the humic substance of copper-sorbed kitchen compost. Scanning electron microscopy (SEM) results...

journal_title：Chemosphere

authors： Wei YL,Lee YC,Yang YW,Lee JF

更新日期：2004-12-01 00:00:00

abstract：:The characteristics of dissolved organic matter (DOM) formed in aerobic and anaerobic digestion of excess activated sludge (EAS) was investigated for three total solid (TS) concentrations (1.2, 2.3 and 5.2%) and three temperatures (5, 20 and 35 °C). The results on the overall concentration of DOM evaluated by TOC show...

journal_title：Chemosphere

authors： Du H,Li F

更新日期：2017-02-01 00:00:00

abstract：:The absolute temperature-dependent kinetics for the reaction between hydroxyl radicals and the chloramine water disinfectant species monochloramine (NH2Cl), as well as dichloramine (NHCl2) and trichloramine (NCl3), have been determined using electron pulse radiolysis and transient absorption spectroscopy. These radica...

journal_title：Chemosphere

authors： Gleason JM,McKay G,Ishida KP,Mezyk SP

更新日期：2017-11-01 00:00:00

abstract：:Hydrogen-rich water (HRW) has been widely used in research on plant resistance to Cd. However, the underlying molecular mechanism of HRW in ameliorating cadmium stress in vegetables is largely unknown. In this study, the RNA-sequencing analyses were used to characterize the role of HRW in the alleviation of Cd toxicit...

journal_title：Chemosphere

authors： Wu X,Zhu ZB,Chen JH,Huang YF,Liu ZL,Zou JW,Chen YH,Su NN,Cui J

更新日期：2019-02-01 00:00:00