Comparison of PCDD/F and coplanar PCB concentrations in Japanese human adipose tissue collected in 1970-1971, 1994-1996 and 2000.

abstract：:A pot incubation experiment under natural conditions was designed to investigate the effects of three biodegradable chelating agents, namely; the [S,S]-isomer of ethylenediamine disuccinate (EDDS), citric acid (CA), and tetrasodium N,N-Bis(carboxymethyl)-L-glutamate acid (GLDA), on two plant species (Brassica juncea a...

journal_title：Chemosphere

authors： Diarra I,Kotra KK,Prasad S

更新日期：2020-10-04 00:00:00

abstract：:Total homologue concentrations and select congener concentrations from amongst the mono- to tri-chlorinated dibenzodioxins (CDDs) and dibenzofurans (CDFs) are used to model both Total (mono- to octa-) CDD + CDF emissions and the toxicity equivalent (TEQ) of the 2,3,7,8-chlorine-substituted emissions. Analysis of emiss...

journal_title：Chemosphere

authors： Gullett BK,Wikström E

更新日期：2000-05-01 00:00:00

abstract：:The herbicide atrazine is used extensively throughout the United States, and is a widespread groundwater and surface water contaminant. Biochar has been shown to strongly sorb organic compounds and could be used to reduce atrazine leaching. We used lab and field experiments to determine biochar impacts on atrazine lea...

journal_title：Chemosphere

authors： Delwiche KB,Lehmann J,Walter MT

更新日期：2014-01-01 00:00:00

abstract：:The present study was to isolate and identify a potent algicidal compound from extract of Salvia miltiorrhiza and study the potential inhibition mechanism on Microcystis aeruginosa. Column chromatography and bioassay-guided fractionation methods were carried out to yield neo-przewaquinone A, which was identified by sp...

journal_title：Chemosphere

authors： Zhang C,Yi YL,Hao K,Liu GL,Wang GX

更新日期：2013-10-01 00:00:00

abstract：:Quantitative structure-property relationship (QSPR) models which predict hydroxyl radical rate constants (kOH) for a wide range of emerging micropollutants are a cost effective approach to assess the susceptibility of these contaminants to advanced oxidation processes (AOPs). A QSPR model for the prediction of kOH of ...

journal_title：Chemosphere

authors： Jin X,Peldszus S,Huck PM

更新日期：2015-11-01 00:00:00

abstract：:Two metal(loid) contaminated agricultural soils were amended with grape stalk (wine production by-product)-derived biochar as well as its pre-pyrolysed origin material, to investigate their geochemical impacts on As, Cr, Cu and Zn. Detailed physico-chemical evaluation combined with a column leaching test determined th...

journal_title：Chemosphere

authors： Trakal L,Raya-Moreno I,Mitchell K,Beesley L

更新日期：2017-08-01 00:00:00

abstract：:Municipal solid waste (MSW) compost contains a significant amount of humic substances. In this study, the compost consisted of residual MSW with the metal, plastic and glass removed. In order to enhance degradation processes and the degree of composting humification, complex microorganisms (Bacillus casei, Lactobacill...

journal_title：Chemosphere

authors： Wei Z,Xi B,Zhao Y,Wang S,Liu H,Jiang Y

更新日期：2007-06-01 00:00:00

abstract：:Some environmental monitoring programs have reported increasing levels of certain polybrominated diphenyl ether (PBDE) isomers in aquatic biota and in human breast milk. The commercial PBDE products are known as penta-, octa-, and deca-brominated diphenyl ethers (PeBDE, OBDE and DBDE, respectively). Aside from the cur...

journal_title：Chemosphere

authors： Wenning RJ

更新日期：2002-02-01 00:00:00

abstract：:A three-month incubation study was undertaken to examine the influence of N, P and K on the various forms (soluble plus exchangeable (SE), weakly specifically adsorbed (WSA), Fe-Mn oxides bound (OX), organic matter complexed (OM) and residual fractions (RES)) of lead (Pb) and cadmium (Cd) in a red soil. Application of...

journal_title：Chemosphere

authors： Tu C,Zheng CR,Chen HM

更新日期：2000-07-01 00:00:00

abstract：:Numerous indices have been developed to assess environmental risk of heavy metals in surface sediments, including the total content based geoaccumulation index (I(geo)), exchangeable fraction based risk assessment code (RAC), and biological toxicity test based sediment quality guidelines (SQGs). In this study, the thr...

journal_title：Chemosphere

authors： Yu GB,Liu Y,Yu S,Wu SC,Leung AO,Luo XS,Xu B,Li HB,Wong MH

更新日期：2011-10-01 00:00:00

abstract：:Chemical synthesis and physical properties of two mercapturic acids suggested as urinary metabolites of m- and p-xylenes are described. These compounds may be used for the identification and quantitative determination by high-performance liquid chromatography of the corresponding mercapturic acids in urine. ...

journal_title：Chemosphere

authors： Tanaka M,Noda T,Moriwaki H,Tsujimoto Y

更新日期：1997-06-01 00:00:00

abstract：:The contamination of cereals with arsenic (As) is a global health and agronomic concern. This study compared the physiological response, As uptake and As speciation in the grains and above ground tissues of 20 wheat cultivars exposed to 5 mg As kg-1 soil as either arsenate (AsV) or dimethylarsenate (DMA) under glassho...

journal_title：Chemosphere

authors： Duncan EG,Maher WA,Foster SD,Krikowa F,O'Sullivan CA,Roper MM

更新日期：2017-08-01 00:00:00

abstract：:Triflumezopyrim is an excellent pesticide for preventing and controlling rice planthoppers. It is widely used in the production of field rice and mainly through spraying with some inadvertent loss of pesticide to the soil. The future may bring development and utilization of seeds containing triflumezopyrim which will ...

journal_title：Chemosphere

authors： Wen S,Liu C,Wang Y,Xue Y,Wang X,Wang J,Xia X,Kim YM

更新日期：2021-02-01 00:00:00

abstract：:Triadimefon, a broad-spectrum, systemic fungicide used to protect agricultural crops is popular in China. However, sub-lethal effects of triadimefon on aquatic organisms remained poorly understood, and its risks to aquatic organisms were unclear. In the current study, thresholds for chronic toxicity to five aquatic or...

journal_title：Chemosphere

authors： Liu N,Jin X,Zhou J,Wang Y,Yang Q,Wu F,Giesy JP,Johnson AC

更新日期：2018-09-01 00:00:00

abstract：:The possible abiotic reduction of selenite to form elemental Se was studied under controlled conditions in the presence of ferrous iron. The reduction of selenite and formation of Se (0) was found to be a surface-mediated reaction by iron oxides. Without the presence of the reactive surface of freshly precipitated iro...

journal_title：Chemosphere

authors： Chen YW,Truong HY,Belzile N

更新日期：2009-02-01 00:00:00

abstract：:Ground discarded tires adsorb naphthalene, toluene, and mercury ions (Hg2+) from aqueous solutions. Their sorption properties and kinetics were determined by batch equilibration techniques at 20 degrees C. The isotherms were linear for naphthalene and toluene and their sorption coefficients were about 1340 and 255 (ml...

journal_title：Chemosphere

authors： Gunasekara AS,Donovan JA,Xing B

更新日期：2000-10-01 00:00:00

abstract：:The investigation presents the observations on the use of cement beads for the immobilization of TiO2 for the degradation of herbicide isoproturon. The immobilized system was effective in degrading and mineralizing the herbicide for continuous thirty cycles without losing its durability. Catalyst was characterized by ...

journal_title：Chemosphere

authors： Verma A,Prakash NT,Toor AP

更新日期：2014-08-01 00:00:00

abstract：:The objective of the study was to assess the applicability of the mycelium obtained from the in vitro cultures of nontoxic bracket fungus, Pleurotus eryngii, to sulfonamides mycodegradation. Samples containing one of the six selected sulfonamides, sulfanilamide derivatives, were incubated with the mycelium of P. eryng...

journal_title：Chemosphere

authors： Baran W,Adamek E,Włodarczyk A,Lazur J,Opoka W,Muszyńska B

更新日期：2021-01-01 00:00:00

abstract：:The occurrence of pharmaceutical and personal care products (PPCPs) was investigated in the Somes River. The aim of this study was to obtain a first overview about the contamination of Somes River (Transylvania) with PPCPs. The samples were preconcentrated by Solid Phase Extraction (SPE) procedures and analysed by GC/...

journal_title：Chemosphere

authors： Moldovan Z

更新日期：2006-09-01 00:00:00

abstract：:The discovery that natural and synthetic chemicals, in the form of excreted hormones and pharmaceuticals, as well as a vast array of compounds with domestic and industrial applications, can enter the environment via wastewater treatment plants and cause a wide variety of environmental and health problems even at very ...

journal_title：Chemosphere

authors： Al-Rifai JH,Gabelish CL,Schäfer AI

更新日期：2007-10-01 00:00:00

abstract：:Fire fighters are at a high risk for exposure to toxic chemicals during and subsequent to fire suppression activities. In the Canadian Fire Station Dust Study (CFSDS) we measured 19 polybrominated diphenyl ether (PBDE) and six organophosphate flame retardant (OPFR) chemicals in dust collected in 2017-18 by vacuuming t...

journal_title：Chemosphere

authors： Gill R,Hurley S,Brown R,Tarrant D,Dhaliwal J,Sarala R,Park JS,Patton S,Petreas M

更新日期：2020-08-01 00:00:00

abstract：:Due to a gradual increase in the use of persulfate as an in situ chemical oxidation (ISCO) oxidant, a simple measurement of persulfate concentration is desirable to analyze persulfate distribution at designated time intervals on/off a site. Such a distribution helps evaluate efficacy of ISCO treatment at a site. This ...

journal_title：Chemosphere

authors： Liang C,Huang CF,Mohanty N,Kurakalva RM

更新日期：2008-11-01 00:00:00

abstract：:The adsorption characteristics of three types of standard natural organic matter (NOM) on iron-aluminum (Fe-Al) binary oxide (FAO) and heated aluminum oxide (HAO) under natural surface water condition were investigated using various adsorption isotherms and kinetic models. FAO was synthesized by Fe oxide and Al oxide,...

journal_title：Chemosphere

authors： Kim KJ,Jang A

更新日期：2017-10-01 00:00:00

abstract：:Biochemical and genetic studies of xenobiotic metabolism in the model plant Arabidopsis have significant potential in providing information for phytoremediation. This paper presents the toxicity of 2,6-dinitrotoluene (2,6-DNT) to Arabidopsis under axenic conditions, the fate and transformation of 2,6-DNT after uptake ...

journal_title：Chemosphere

authors： Yoon JM,Oliver DJ,Shanks JV

更新日期：2007-06-01 00:00:00

abstract：:The inherent chemical properties of eight different dissolved organic matters (DOMs) originating from soil, surface and groundwater have been analysed. The samples consist of isolated fulvic acids (FA), humic acids (HA), and humic substances (HS), i.e. natural mixtures containing a humic and a fulvic fraction. The hum...

journal_title：Chemosphere

authors： Thomsen M,Lassen P,Dobel S,Hansen PE,Carlsen L,Mogensen BB

更新日期：2002-12-01 00:00:00

abstract：:Despite the fact that aquatic organisms are mostly poikilothermic and environmental temperature variations can have considerable impact on chemical toxicity, toxicity studies are mainly performed at the species' specific standard or optimal temperature. Since the zebrafish is a recommended test species for use in toxi...

journal_title：Chemosphere

authors： Vergauwen L,Knapen D,Hagenaars A,Blust R

更新日期：2013-04-01 00:00:00

abstract：:Mycotoxins are harmful substances produced by fungi in several commodities with a widespread presence in foodstuffs. Human exposure to mycotoxins occurs mainly by contaminated food. The quantitation of mycotoxins in cereal-based food, highly consumed by different age population, is of concern. In this survey, 159 cere...

journal_title：Chemosphere

authors： Rodríguez-Carrasco Y,Ruiz MJ,Font G,Berrada H

更新日期：2013-11-01 00:00:00

abstract：:The research into 220Rn (thoron) has generated an increasing interest in recent times due to the realisation of its radiological importance in many indoor environments. Though it is assumed that the contribution of 220Rn, per se, to the inhalation dose is negligible in comparison with that of its decay products, this ...

journal_title：Chemosphere

authors： Kanse SD,Sahoo BK,Gaware JJ,Sapra BK

更新日期：2021-03-01 00:00:00

abstract：:Chromium is detrimental heavy metal pollutants and can enter and affect aquatic organisms. In our experiment, B. gargarizans embryos were chronically exposed in different concentrations of Cr (VI) (0, 13, 104, and 416 μg Cr6+ L-1) until reached Gosner stage 38. We measured morphological parameters of the body and inte...

journal_title：Chemosphere

authors： Yao Q,Yang H,Wang X,Wang H

更新日期：2019-02-01 00:00:00

abstract：:Detailed geochemistry similarities between the burning coal cleaning rejects (BCCRs) and non-anthropogenic geological environments are outlined here. While no visible flames were detected, this research revealed that auto-combustion existed in the studied area for many years. The occurrence of several amorphous phases...

journal_title：Chemosphere

authors： Sehn JL,de Leão FB,da Boit K,Oliveira ML,Hidalgo GE,Sampaio CH,Silva LF

更新日期：2016-03-01 00:00:00