Influence of hydroxypropylcyclodextrins on the toxicity of mixtures.

abstract：:Metal contents in soil samples are commonly used to evaluate contamination levels. However, the distribution of metals is dependent on particle size. We investigated the distribution of metals in various particle size fractions of the soil from four sites of the Puchuncaví Valley (Central Chile). The soil samples were...

journal_title：Chemosphere

authors： Parra S,Bravo MA,Quiroz W,Moreno T,Karanasiou A,Font O,Vidal V,Cereceda F

更新日期：2014-09-01 00:00:00

abstract：:Cyclodiene pesticides: aldrin, isodrin, dieldrin and endrin were dechlorinated by methanogenic granular sludge in spiked batch tests. Initial pesticides concentration was 7 or 9 mgl(-1). Two monodechlorinated analogues were formed during the conversions of aldrin and isodrin. Dieldrin was transformed into two monodech...

journal_title：Chemosphere

authors： Baczynski TP,Grotenhuis T,Knipscheer P

更新日期：2004-05-01 00:00:00

abstract：:In aquatic environments the reactive oxygen species hydrogen peroxide (H2O2) is produced through photochemical reactions involving chromophoric dissolved organic matter (CDOM). Andean Patagonian freshwaters experience challenging underwater UV levels, which promote high levels of photochemical weathering. In this inve...

journal_title：Chemosphere

authors： García PE,Queimaliños C,Diéguez MC

更新日期：2019-02-01 00:00:00

abstract：:Organic degradation by zero-valent metal (ZVM)-activated peroxymonosulfate (PMS) systems has drawn great attention in water treatment. Among various types of ZVM, zero-valent copper (ZVC) showed greatest activating capacity. However, the disadvantages of the released Cu2+ limit the practical utilization of ZVC. In thi...

journal_title：Chemosphere

authors： Chi H,Wang Z,He X,Zhang J,Wang D,Ma J

更新日期：2019-08-01 00:00:00

abstract：:The effects of five imidazolium ionic liquids with different anions were studied in hydroponically grown wheat seedlings at concentrations of 50, 100, 150, 200, 250, and 300 mg L-1. The results showed that shoots and roots grew shorter and dry weight decreased with increasing concentrations of ionic liquids. Moreover,...

journal_title：Chemosphere

authors： Chen Z,Zhou Q,Guan W,Wang J,Li Y,Yu N,Wei J

更新日期：2018-03-01 00:00:00

abstract：:The treatment of wastewater containing hydrophobic organic pollutants solubilized by surfactants is of great environmental importance. In this work, the removal of rhamnolipid-solubilized hexadecane via a salicylic acid-methanol-acetone modified steel converter slag (SMA-SCS) catalyzed Fenton-like process was studied....

journal_title：Chemosphere

authors： Liu Y,Cheng M,Liu Z,Zeng G,Zhong H,Chen M,Zhou C,Xiong W,Shao B,Song B

更新日期：2019-12-01 00:00:00

abstract：:Interactive toxic effects between heavy metals were investigated using a sea urchin (Anthocidaris crassispina) bioassay. An effluent from an abandoned mine showed significant inhibitory effects on embryo development as well as producing specific malformations. The effects on the embryos were reproduced by synthetic po...

journal_title：Chemosphere

authors： Kobayashi N,Okamura H

更新日期：2005-12-01 00:00:00

abstract：:The occurrence and fate of twenty-one pharmaceutically active compounds (PhACs) were investigated in different steps of the largest wastewater treatment plant (WWTP) in Southwest China. Concentrations of these PhACs were determined in both wastewater and sludge phases by a high-performance liquid chromatography couple...

journal_title：Chemosphere

authors： Yan Q,Gao X,Huang L,Gan XM,Zhang YX,Chen YP,Peng XY,Guo JS

更新日期：2014-03-01 00:00:00

abstract：:In the present study, heterogeneous electro-Fenton (EF) process was applied to remove the sulfasalazine (SU) pharmaceutical from aqueous solutions. In the first part, 3D graphene loaded with Fe@Fe2O3 core-shell nanowires (Fe@Fe2O3/3D-GO) was used as a cathode electrode in the EF process. Graphene oxide (GO) was synthe...

journal_title：Chemosphere

authors： Amali S,Zarei M,Ebratkhahan M,Khataee A

更新日期：2020-10-09 00:00:00

abstract：:Naturally silver nanoparticles (AgNPs) have been widely observed in ore deposits, coal, natural water and soil environment. Identifying the source of these naturally AgNPs could be helpful for the elucidation of the geochemical cycle of Ag+ and AgNPs. This paper presents the formation of AgNPs by reducing Ag+ in the p...

journal_title：Chemosphere

authors： Nie X,Zhu K,Zhao S,Dai Y,Tian H,Sharma VK,Jia H

更新日期：2020-03-01 00:00:00

abstract：:The accumulation of the platinum group elements (PGEs), Pd, Pt, Rh, and other heavy metals (Cd, Cr, Cu, Mn, Ni, Pb, Zn) in the wood mouse Apodemus sylvaticus was investigated in relation to environmental availability, comparing levels in the commonly used target tissues, the liver and kidney, to hair responses. In par...

journal_title：Chemosphere

authors： Marcheselli M,Sala L,Mauri M

更新日期：2010-09-01 00:00:00

abstract：:This research advances the knowledge of the pharmaceutical removal interactions by biochar in synthetic and real urine through the use of reference adsorbents and adsorbate probes. Earlier work has combined biochar and urine for pharmaceutical removal, however, the interactions that influence adsorption are unknown. I...

journal_title：Chemosphere

authors： Solanki A,Boyer TH

更新日期：2019-03-01 00:00:00

abstract：:Pathways from chlorinated phenols as precursors to PCDD/Fs are discussed with focus on the effect of (poly)chlorination on thermochemistry and rate in the displacement of chlorine from a chlorophenol molecule by a (chloro)phenoxy radical (reaction (A) as a key example). Through measurements on the respective methyleth...

journal_title：Chemosphere

authors： Louw R,Ahonkhai SI

更新日期：2002-03-01 00:00:00

abstract：:The tissue-blood partition coefficients for a physiologically based pharmacokinetic (PBPK) model were determined, and the concentrations of 17 congeners of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in tissues in Japanese people were estimated using the model. According to the PBPK m...

journal_title：Chemosphere

authors： Maruyama W,Yoshida K,Tanaka T,Nakanishi J

更新日期：2002-02-01 00:00:00

abstract：:Toxic polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in 45 stack gas samples were measured from 19 medical waste incinerators in South Korea using high-resolution gas chromatography equipped with a high-resolution mass spectrometer. The average concentrations of the sum of 17 toxic...

journal_title：Chemosphere

authors： Yoon YW,Jeon TW,Son JI,Kim KY,Kwon EH,Shin SK,Kang JG

更新日期：2017-12-01 00:00:00

abstract：:Quinestrol is synthetic estrogen used in contraceptive and hormone replacement therapy and occasionally for treating breast cancer and prostate cancer. It can make its way into the environment through sewage discharge and waste disposal produced by human excretions. In this study, the photodegradation kinetics of quin...

journal_title：Chemosphere

authors： Tang T,Qian K,Shi T,Wang F,Li P,Li J,Cao Y

更新日期：2012-11-01 00:00:00

abstract：:Humic substances (HS) including humic acid (HA) and fulvic acid (FA) are ubiquitous in the natural waters. Although numerous studies documented their role in photodegradation of organic pollutants, the competitive effects of photosensitization and light-screening of HS on the photodegradation of pollutants are not yet...

journal_title：Chemosphere

authors： Chen Y,Liu L,Su J,Liang J,Wu B,Zuo J,Zuo Y

更新日期：2017-11-01 00:00:00

abstract：:PCDDs, PCDFs, and dioxin like PCBs (dioxin) surveillance results derived from regular environmental monitoring as well as other dioxin surveys by national and local governmental bodies in Japan were collected and analyzed. Several thousand data for air and soil in fiscal year 2001 (from 01/04/2001 to 31/03/2002) and 2...

journal_title：Chemosphere

authors： Mato Y,Suzuki N,Katatani N,Kadokami K,Nakano T,Nakayama S,Sekii H,Komoto S,Miyake S,Morita M

更新日期：2007-04-01 00:00:00

abstract：:This study discovered that biofilm extracellular polymeric substances (EPS) are biodegradable by their own producers and by other microorganisms when they are starved. The study was performed in a comparative fashion to examine the biodegradability of biofilm EPS by the microorganisms from the original biofilm (its ow...

journal_title：Chemosphere

authors： Zhang X,Bishop PL

更新日期：2003-01-01 00:00:00

abstract：:The speciation of Al3+ in aqueous solutions containing organic and inorganic ligands important from a biological (citrate (Cit3-), gluconate (Gluc-), lactate (Lac-), silicate (H2SiO42-), carbonate (CO32-), fluoride (F-)) and industrial (Gantrez®; polymethyl-vinyl-ether-co-maleic acids; GTZ S95 and GTZ AN169) point of ...

journal_title：Chemosphere

authors： Cardiano P,Cigala RM,Crea F,Giacobello F,Giuffrè O,Irto A,Lando G,Sammartano S

更新日期：2017-11-01 00:00:00

abstract：:Biochar pyrolysed at 300 °C, 500 °C, 700 °C was modified by hydrochloric acid (HCl), hydrofluoric acid (HF), sodium hydroxide (NaOH), hydrogen peroxide (H2O2), nitric acid (HNO3) and potassium permanganate (KMnO4), and subsequently evaluated for removal efficiency of 1,2,4-trichlorobenzene (1,2,4-TCB) by biochar suppo...

journal_title：Chemosphere

authors： Shang X,Yang L,Ouyang D,Zhang B,Zhang W,Gu M,Li J,Chen M,Huang L,Qian L

更新日期：2020-06-01 00:00:00

abstract：:The purpose of this study is to develop an aerosol generating system that can produce particles of micrometer size in a convenient and efficient way. This system is comprised of an ultrasonic atomizer, potassium sodium tartrate tetrahydrate (PST) as solute and a program-controlled solute feeding unit with different PS...

journal_title：Chemosphere

authors： Lee YC,Jeng FT,Chen CC

更新日期：2008-10-01 00:00:00

abstract：:This study compared the binding of europium by soil and aquatic natural organic matter (NOM) exemplified by Pahokee Peat humic acid (PPHA) and Northern Reservoir NOM, respectively. NOM/Eu3+ interactions were measured based on the differential absorbance approach. The experimental results show that the binding of Eu3+ ...

journal_title：Chemosphere

authors： Chen Y,Fabbricino M,Luongo V,Korshin GV

更新日期：2019-11-01 00:00:00

abstract：:Bioaccumulation of mercury in freshwater fish is a complex process driven by environmental and biological factors. In this study, we assessed mercury in fish from four tributaries to the Red Deer River, Alberta, Canada, which are characterized by high surface water mercury concentrations. We used carbon (δ13C) and nit...

journal_title：Chemosphere

authors： Donadt C,Cooke CA,Graydon JA,Poesch MS

更新日期：2021-01-01 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 translocation of lead (Pb) in the soil-mulberry-silkworm food chain and the process of Pb detoxification in the mulberry-silkworm chain were investigated. The amount of Pb in mulberry, silkworm, feces and silk increased in a dose-responsive manner to the Pb contents in the soils. Mulberry roots sequestered most of...

journal_title：Chemosphere

authors： Zhou L,Zhao Y,Wang S,Han S,Liu J

更新日期：2015-06-01 00:00:00

abstract：:Molecular mechanisms responsible for the filtration behaviors of sodium alginate (SA) in presence of different iron(III) ion concentration were explored in this study. It was found that specific filtration resistance (SFR) of alginate mixtures (1.0 gSA/L) firstly increased and then decreased to a trough with iron(III)...

journal_title：Chemosphere

authors： Chen Y,Teng J,Liao BQ,Li R,Lin H

更新日期：2020-03-01 00:00:00

abstract：:In this study, low-temperature catalytic NO oxidation with H2O2 over Na- and H-exchanged Y and ZSM-5 zeolites was investigated at 140 °C which is the average exhaust temperature of coal-fired power plant. Fast catalytic NO oxidation rates were observed over H-zeolites, and catalytic activity was proportional to the am...

journal_title：Chemosphere

authors： Cui R,Ma S,Yang B,Li S,Li J,Pei T,Wang J,Sun S,Mi C

更新日期：2020-07-01 00:00:00

abstract：:The effect of flutriafol on the cellulose decomposition was studied in the laboratory as a dose-response experiment using a trade marked formulation. Cellulose degradation rates were determined by the weight loss from cellulose filter disks buried in soil samples and by the CO2 evolved during batch incubation experime...

journal_title：Chemosphere

authors： Munier-Lamy C,Borde O

更新日期：2000-10-01 00:00:00

abstract：:There is a lack of consensus on the charge state of active gold species in catalytic CO oxidation reaction. Herein, Au/SBA-15 catalyst was prepared by room temperature ozone treatment. Through diffuse reflectance Fourier-transform infrared spectroscopy (DRIFTS), two different gold species, Au0 and Auδ- with CO adsorpt...

journal_title：Chemosphere

authors： Feng X,Meng D,Yang Y,Tan Z,Liang J,Xiao C

更新日期：2020-07-01 00:00:00