Toxicological comparisons of Tetrahymena species, end points and growth media: supplementary investigations to the pilot ring test.

abstract：:Biochar is a carbonaceous sorbent and can be used as a potential material to reduce the bioavailability of organic pollutants in contaminated soils. In the present study, the adsorption and desorption of diethyl phthalate (DEP) onto soils amended with bamboo biochar was investigated with a special focus on the effect ...

journal_title：Chemosphere

authors： Zhang X,Sarmah AK,Bolan NS,He L,Lin X,Che L,Tang C,Wang H

更新日期：2016-01-01 00:00:00

abstract：:Humic acids, HA represent a large portion of natural organic matter in soils, sediments and waters. They are environmentally important materials due to their extensive ubiquity and strong complexation ability, which can influence heavy metal removal and transportation in waters. The thermodynamics and kinetics of the ...

journal_title：Chemosphere

authors： Shaker MA,albishri HM

更新日期：2014-09-01 00:00:00

abstract：:Two reference models are commonly used to predict mixture toxicity, Concentration Addition and Independent Action. For accurately predicting mixture effects, both reference models need a full description of the dose-response curve for all single chemicals present in the mixture. We studied the mixture effect of nickel...

journal_title：Chemosphere

authors： Broerse M,van Gestel CA

更新日期：2010-05-01 00:00:00

abstract：:The degree of contamination and toxicity in sediment from four Spanish ports (Cádiz, Huelva, Pasajes and Bilbao) was assessed in the present study. Two marine invertebrate species, the shore crab Carcinus maenas and the clam Ruditapes philippinarum, were exposed to the different sediments under laboratory conditions f...

journal_title：Chemosphere

authors： Martín-Díaz ML,Jiménez-Tenorio N,Sales D,Delvalls TA

更新日期：2008-05-01 00:00:00

abstract：:The traditional view of metal adsorption to bacterial surfaces is that it can act as a protective mechanism by externalizing the metal outside the cell. However, numerous studies focussing on the biodynamics of metal uptake using biotic ligand models consider metal adsorption to cell surfaces as an important first ste...

journal_title：Chemosphere

authors： Liang L,Ngwenya BT

更新日期：2018-12-01 00:00:00

abstract：:Rising environmental pressures on water resources and resource quality associated with urbanisation, industrialisation, mining and agriculture are a global concern. In the current study the upper Olifants River catchment as case study was used, to show that acid mine drainage (AMD) and acid precipitation were the two ...

journal_title：Chemosphere

authors： Oberholster PJ,Botha AM,Hill L,Strydom WF

更新日期：2017-12-01 00:00:00

abstract：:Until now, there is limited information about mercury exposures inside solid waste incineration plants although incineration has been considered as one of major solid waste treatments. This study investigated indoor air concentrations of gaseous elemental mercury (GEM), reactive gaseous mercury (RGM) and particulate m...

journal_title：Chemosphere

authors： Liu Y,Zhan Z,Du F,Kong S,Liu Y

更新日期：2009-04-01 00:00:00

abstract：:Carbon Nanotubes (CNTs) and nano Zero-Valent Iron (nZVI) particles, as well as two nanocomposites based on these novel nanomaterials, were employed as nano-adsorbents for the removal of hexavalent chromium, selenium and cobalt, from aqueous solutions. Nanomaterials characterization included the determination of their ...

journal_title：Chemosphere

authors： Vilardi G,Mpouras T,Dermatas D,Verdone N,Polydera A,Di Palma L

更新日期：2018-06-01 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：:Adsorption properties of Co2+, Ni2+, and Cr3+ on an Amberlite IRN-77 cation exchange resin were investigated in batch systems. Levels of adsorption rapidly approached an equilibrium state within 1 h. The adsorption characteristics of each metal onto the resin were accurately represented by Langmuir isotherms. Co2+ and...

journal_title：Chemosphere

authors： Kang SY,Lee JU,Moon SH,Kim KW

更新日期：2004-07-01 00:00:00

abstract：:The mobility of phosphorus (P) induced by sediment resuspension have been examined in a circulated flume. During the flume run, the water level and velocity were monitored, and water samples were taken for measurement of sediment and P concentrations. Peak values of both the P and sediment concentrations existed at x=...

journal_title：Chemosphere

authors： Huang L,Fang H,Fazeli M,Chen Y,He G,Chen D

更新日期：2015-09-01 00:00:00

abstract：:Soil contamination can be one path for streams and groundwater contamination. As a complement of chemical analysis and total contaminants determination, bioassays can provide information on the bioavailable fraction of chemical compounds, focusing on the retention and habitat function of soils. In this study the evalu...

journal_title：Chemosphere

authors： Loureiro S,Ferreira AL,Soares AM,Nogueira AJ

更新日期：2005-10-01 00:00:00

abstract：:Atrazine (ATZ) and its main metabolites, i.e., diaminochlorotriazine (DACT), deisopropylatrazine (DIP), and deethylatrazine (DE), have been widely detected in surface water around the world. In the present study, to determine their immunotoxic effects, zebrafish during the early developmental stage were exposed to ATZ...

journal_title：Chemosphere

authors： Liu Z,Fu Z,Jin Y

更新日期：2017-01-01 00:00:00

abstract：:EROD (ethoxyresorufin-O-deethylase) activity was determined in winter flounder, a sediment-inhabiting and non-migratory fish species, living near a pulp and paper mill in Newfoundland in relation to temperature, gender, sexual maturity, and lesions in the liver. Samples of liver were taken from fish captured by SCUBA ...

journal_title：Chemosphere

authors： Khan RA,Payne JF

更新日期：2002-01-01 00:00:00

abstract：:Nitrification is a microbial key step of the nitrogen cycle, which performs the oxidation of ammonium to nitrate, via nitrite. In aquatic environments, it mainly takes place in the sediment or is associated with suspended particles. Wastewater treatment plant (WTP) discharges in rivers may disrupt sediment nitrificati...

journal_title：Chemosphere

authors： Féray C,Montuelle B

更新日期：2003-02-01 00:00:00

abstract：:Lake sediments contaminated with polychlorinated biphenyls (PCBs) were purged using a gas stripping technique to estimate desorption rate constants. Desorption profiles and modeling of the data clearly show a two-step release of PCBs from sediment suspensions that can be described as a labile (fast) release followed b...

journal_title：Chemosphere

authors： Dunnivant FM,Coates JT,Elzerman AW

更新日期：2005-10-01 00:00:00

abstract：:We examined the effect of 2,4,4'-trichloro-2'-hydroxydiphenyl ether (Irgasan DP300) on microsomal cytochrome P450 (P450) enzymes in rat liver. Rats were treated intraperitoneally with Irgasan DP300 daily for 4 days, at doses of 0.2, 0.4 and 0.8 mmol/kg. Among the P450-dependent monooxygenase activities, 7-benzyloxyres...

journal_title：Chemosphere

authors： Hanioka N,Jinno H,Nishimura T,Ando M

更新日期：1997-02-01 00:00:00

abstract：:In vivo studies of the interactions of polybrominated diphenyl ethers (PBDEs) in plants have generally focused on uptake, translocation, metabolism and accumulation, but there were limited reports about the phytotoxicity and translocation of PBDEs in contaminated soil with the effects of nanoparticles. In this study, ...

journal_title：Chemosphere

authors： Wu J,Xie Y,Fang Z,Cheng W,Tsang PE

更新日期：2016-11-01 00:00:00

abstract：:Glass has been obtained by melting red mud from Shandong Province in China with different additives. Suitable thermal treatments were employed to convert the obtained glass into nano-crystal glass-ceramics. X-ray diffraction (XRD) patterns showed that the main crystalline phase in both the glass-ceramics is wollastoni...

journal_title：Chemosphere

authors： Peng F,Liang KM,Shao H,Hu AM

更新日期：2005-05-01 00:00:00

abstract：:A level IV multimedia fugacity model was established to simulate the fate and transfer of hexachlorocyclohexane (HCH) isomers in the lower reach of the Yellow River basin, China, during 1952-2010. The predicted concentrations of HCHs are in good agreement with the observed ones, as indicated by the residual errors bei...

journal_title：Chemosphere

authors： Ao J,Chen J,Tian F,Cai X

更新日期：2009-01-01 00:00:00

abstract：:Agriculture in northern Iraq (Kurdistan) relies on the widespread use of pesticides to promote crop performance. Over-application of many pesticides is commonplace, however, and may compromise soil and water quality, and ultimately human health, within the region. The aim of this study was to investigate the sorption-...

journal_title：Chemosphere

authors： Shareef K,Shaw G

更新日期：2008-05-01 00:00:00

abstract：:This study principally focused on a new kind of photochemical reaction catalyst: porphyrin and phthalocyanine complexes. In a first step, the preparation of the catalysts was optimized. A resin has been chosen to be the support of the complexes. Efficiency of catalytic activity is performed on the degradation of a pes...

journal_title：Chemosphere

authors： Héquet V,Le Cloirec P,Gonzalez C,Meunier B

更新日期：2000-08-01 00:00:00

abstract：:This study aimed to classify the possible molecular formulas of precursors for disinfection by-products (DBPs) in raw, coagulated, and chlorinated water samples from the U-Tapao Canal, Songkhla, Thailand. The molecular formulas of DBPs in chlorinated water were investigated. Polyaluminum chloride (PACl) was employed a...

journal_title：Chemosphere

authors： Phatthalung WN,Suttinun O,Phungsai P,Kasuga I,Kurisu F,Furumai H,Musikavong C

更新日期：2021-02-01 00:00:00

abstract：:Antibiotics and antibacterials are present in water bodies worldwide but little is known about their effects on the biological processes often used to treat water. In this research, the effect of antibiotics on bacterial activity and community structure was investigated by growing biofilms in the presence and absence ...

journal_title：Chemosphere

authors： Wunder DB,Tan DT,LaPara TM,Hozalski RM

更新日期：2013-02-01 00:00:00

abstract：:Dynamics of carbon (C) gas emission from wetlands influence global C cycling. In many freshwater systems such as Louisiana freshwater marsh, soil contents of NO3(-) and SO4(2-) have increased due to nutrient loading and saltwater intrusion. This could affect C mineralization and the emission of the major greenhouse ga...

journal_title：Chemosphere

authors： Dodla SK,Wang JJ,Delaune RD,Breitenbeck G

更新日期：2009-07-01 00:00:00

abstract：:The unexpected incorporation of ionic Mn and Fe in the crystalline structure of titanate nanowires was accomplished when a contaminated a titanium source was used. The presence of Mn (8.1 mg L-1) and Fe (4.3 mg L-1) result in the production of a novel co-doped (Fe,Mn) titanate nanowires (TNW) material with improved op...

journal_title：Chemosphere

authors： Barrocas B,Chiavassa LD,Conceição Oliveira M,Monteiro OC

更新日期：2020-07-01 00:00:00

abstract：:To develop alternatives to methyl bromide (MeBr) for soil disinfection under environmental Moroccan conditions, distribution and persistence of 1,3-dichloropropene (1,3-D) and methyl isothiocyanate (MITC) were tested in undisturbed soil columns (12 cm internal diameter, 1 m length). 1,3-D was injected at a 15 cm depth...

journal_title：Chemosphere

authors： El Hadiri N,Ammati M,Chgoura M,Mounir K

更新日期：2003-08-01 00:00:00

abstract：:We evaluate copper tolerance and accumulation in Vitis vinifera ssp. sylvestris in populations from a copper contaminated site and an uncontaminated site, and in the grapevine rootstock "41B", investigating the effects of copper (0-23 mM) on growth, photosynthetic performance and mineral nutrient content. The highest ...

journal_title：Chemosphere

authors： Cambrollé J,García JL,Figueroa ME,Cantos M

更新日期：2015-02-01 00:00:00

abstract：:Membranes, as the primary separation element of membrane-based processes, have greatly attracted the attention of researchers in several water treatment applications, including wastewater treatment, water purification, water disinfection, toxic and non-toxic chemical molecules, heavy metals, among others. Today, the r...

journal_title：Chemosphere

authors： Castro-Muñoz R,González-Melgoza LL,García-Depraect O

更新日期：2020-12-28 00:00:00

abstract：:In this study we report on a three-stage design of algal assisted constructed wetland -microbial fuel cell incorporated sand filter for efficient treatment of wastewater and bioelectricity generation, simulating a core of it. It aims for the complete removal of organic matter and other inorganic pollutants such as NO3...

journal_title：Chemosphere

authors： Gupta S,Nayak A,Roy C,Yadav AK

更新日期：2021-01-01 00:00:00