A practical approach to the degradation of polychlorinated biphenyls in transformer oil.

abstract：:The formation and control of haloacetamides (HAcAms) in drinking water have raised high attention due to their high genotoxicity and cytotoxicity, especially the most cytotoxic one, diiodoacetamide (DIAcAm). In this study, the degradation of DIAcAm by UV/chlorination was investigated in terms of degradation kinetics, ...

journal_title：Chemosphere

authors： Liu Z,Lin YL,Xu B,Hu CY,Zhang TY,Cao TC,Pan Y,Gao NY

更新日期：2020-02-01 00:00:00

abstract：:Metal and metalloid contamination constitutes a major concern in aquatic ecosystems. Thus it is important to find rapid and reliable indicators of metal stress to aquatic organisms. In this study, we tested the use of (1)H nuclear magnetic resonance (NMR) - based metabolomics to examine the response of Daphnia magna n...

journal_title：Chemosphere

authors： Nagato EG,D'eon JC,Lankadurai BP,Poirier DG,Reiner EJ,Simpson AJ,Simpson MJ

更新日期：2013-09-01 00:00:00

abstract：:Rooftops are both a source of and a pathway for contaminated runoff in urban environments. To investigate the importance of particle-associated contamination in rooftop runoff, particles washed from asphalt shingle and galvanized metal roofs at sites 12 and 102 m from a major expressway were analyzed for major and tra...

journal_title：Chemosphere

authors： Van Metre PC,Mahler BJ

更新日期：2003-09-01 00:00:00

abstract：:The urinary metabolites of n-nonane in male Fischer 344 rats, after administering the hydrocarbon by gavage, included gamma-valerolactone, delta-hexanolactone, 2,5-hexanedione, delta-heptanolactone, 1-heptanol, 2-nonanol, 3-nonanol, 4-nonanol, 4-nonanone and 5-methyl-2-(3-oxobutyl)furan. Metabolism strongly favored th...

journal_title：Chemosphere

authors： Serve MP,Bombick DD,Baughman TM,Jarnot BM,Ketcha M,Mattie DR

更新日期：1995-07-01 00:00:00

abstract：:Swine sewage could be source of nutrients and pollutants. This work estimates the environmental risk in nine samples from different farm treatment systems based on the evaluation of their effects in Daphnia magna acute test, and on the assessment of Cu, Zn and ammonia as main contributors. NH3 and Cu were responsible ...

journal_title：Chemosphere

authors： De la Torre AI,Jiménez JA,Carballo M,Fernandez C,Roset J,Muñoz MJ

更新日期：2000-11-01 00:00:00

abstract：:The present investigation determined the effects of epibrassinolide (EBL) on the levels of indole-3-acetic acid (IAA), abscisic acid (ABA), and polyamine (PA) and antioxidant potential of 7-d old Raphanus sativus L. cv. 'Pusa chetki' seedlings grown under Cr (VI) metal stress. Reduced titers of free (0.767 μg g(-1) FW...

journal_title：Chemosphere

authors： Choudhary SP,Kanwar M,Bhardwaj R,Gupta BD,Gupta RK

更新日期：2011-07-01 00:00:00

abstract：:An adverse tendency induced by the environmental estrogens in female reproductive health is one serious problem worldwide. Diethylstilbestrol (DES), as a synthetic estrogen, is still used as an animal growth stimulant in terrestrial livestock and aquaculture illegally. It has been reported to negatively affect ovarian...

journal_title：Chemosphere

authors： Ding ZM,Hua LP,Ahmad MJ,Safdar M,Chen F,Wang YS,Zhang SX,Miao YL,Xiong JJ,Huo LJ

更新日期：2020-06-01 00:00:00

abstract：:Pesticides are being detected in water bodies on an increasingly frequent basis. The present study focused on the phytoremediation potential of selected aquatic plants to remove phytosanitary products from contaminated water. We investigated the uptake capacity of Lemna minor (L. minor), Elodea canadensis (E. canadens...

journal_title：Chemosphere

authors： Olette R,Couderchet M,Biagianti S,Eullaffroy P

更新日期：2008-02-01 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：:PAH removal with surfactant enhanced washing was investigated through a series of laboratory tests to examine the effect of stirring speed, washing time, surfactant concentration, liquid/solid ratio, temperature, and on-and-off mode. The first four factors show significant influence on the PAH removal while the latter...

journal_title：Chemosphere

authors： Peng S,Wu W,Chen J

更新日期：2011-02-01 00:00:00

abstract：:Pyridine and organics containing pyridine rings are widely used but persist in the environment and cause toxic pollution. Due to the attraction of the nitrogen atoms to the electrons in the pi bond, the pyridine ring is difficult to oxidize by oxidant. Here, we propose that ultraviolet (UV) irradiation activates the e...

journal_title：Chemosphere

authors： Liu T,Ding Y,Liu C,Han J,Wang A

更新日期：2020-11-01 00:00:00

abstract：:Fly ash from petroleum coke combustion was evaluated for CO2 capture in aqueous medium. Moreover the carbonation efficiency based on different methodologies and the kinetic parameters of the process were determined. The results show that petroleum coke fly ash achieved a CO2 capture yield of 21% at the experimental co...

journal_title：Chemosphere

authors： González A,Moreno N,Navia R

更新日期：2014-12-01 00:00:00

abstract：:This study was a follow-up of a previous study that investigated a set of selected fatty acids (FAs; 12 of 56 pools) in Helix pomatia L. as biomarkers of chemical stress induced by applying micro-doses of molluscicides. Here, the potential of rarely used peroxidation (PI) and unsaturation (UI) coefficients were tested...

journal_title：Chemosphere

authors： Kowalczyk-Pecka D,Kowalczuk-Vasilev E,Puchalski A,Kiczorowska B,Samolińska W,Stryjecki R,Czepiel-Mil K

更新日期：2019-11-01 00:00:00

abstract：:Dissipation of alachlor in soil and plant in field condition (cotton cropping system), and in soil, water and fish in simulated model ecosystem was investigated. The acetanilide herbicide, alachlor (50% w/w EC) was applied as pre-emergence at 2.5 and 5.0 kg a.i.ha(-1) three days after sowing the cotton seeds in the fi...

journal_title：Chemosphere

authors： Ramesh A,Maheswari ST

更新日期：2004-02-01 00:00:00

abstract：:Highly active samarium doped zinc oxide self-cleaning and biocidal surfaces (x mol% Sm(3+)/ZnO where x=0, 1, 2 and 4 mol%) with crystalline porous structures were synthesized by hydrothermal method. Sm(3+)/ZnO thin films were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning el...

journal_title：Chemosphere

authors： Saif M,Hafez H,Nabeel AI

更新日期：2013-01-01 00:00:00

abstract：:Due to uncertainties as to appropriate procedures and dilution materials, most sediment tests are conducted only with undiluted, whole samples. Hence, it is not possible to use conventional concentration-response approaches to quantify toxicity of samples that elicit a 100% effect (e.g., mortality) at a preset test in...

journal_title：Chemosphere

authors： DeFoe DL,Ankley GT

更新日期：2003-04-01 00:00:00

abstract：:The photochemical behavior of goethite has been one of the most important topics in the field of environmental science due to it plays a significant role in the removal and transformation process of numerous pollutants. However, the interfacial electron transfer process of goethite is not clear. Using a nanosecond las...

journal_title：Chemosphere

authors： Ma J,Zhu C,Lu J,Ouyang B,Xie Q,Liu H,Peng S,Chen T

更新日期：2017-12-01 00:00:00

abstract：:A study was carried out of Cu adsorption and desorption processes in red soil as affected by o-phenylenediamine (o-PD) in the range 0-80 mg/l. The results indicated that the presence of o-PD enhanced Cu adsorption in red soil in weakly acid media, meanwhile, desorption percentage of Cu from soil, extracted by 1.0 M Mg...

journal_title：Chemosphere

authors： Wang SQ,Zhou DM,Wang YJ,Chen HM

更新日期：2003-04-01 00:00:00

abstract：:Supercritical water oxidation (SCWO) of 15 aromatic compounds, including bisphenol A (BPA), nonylphenol (NP) and octylphenol (OP), was investigated under temperature and reaction time ranged of 350-550 °C and 0.5-6 min, respectively, with 300% excess oxygen, resulted in the degradation rate constants of total organic ...

journal_title：Chemosphere

authors： Yang B,Cheng Z,Gao X,Yuan T,Shen Z

更新日期：2019-03-01 00:00:00

abstract：:Influences of colloidal stabilities of nanoparticles (NPs) on the bioaccumulation of co-existing pollutants remains largely unknown. In this study, two oxidation products of nanoscale zero-valent iron (nZVI) with totally varied colloidal stabilities, termed highly oxidized nZVI (HO-nZVI) and lowly oxidized nZVI (LO-nZ...

journal_title：Chemosphere

authors： Jiang D,Hu X,Jin X,Ma A,Yin D

更新日期：2021-01-01 00:00:00

abstract：:Haloacetic acids (HAAs) were reported to be the most abundant category of DBPs in swimming pool water. In this study, the formation of HAAs from different organic precursors in swimming pool water, including UV filters, human body fluids, and natural organic matter (NOM), during chlorination was examined, and the effe...

journal_title：Chemosphere

authors： Wang J,Gong T,Xian Q

更新日期：2020-05-01 00:00:00

abstract：:Decabromodiphenyl ethane (DBDPE) is a novel environmental pollutant that has attracted growing attention. Previous studies have indicated that DBDPE could induce vascular endothelial injury and cardiovascular damage, but the underlying mechanisms are not well understood. This study was designed to examine the mechanis...

journal_title：Chemosphere

authors： Zheng D,Shi Z,Yang M,Liang B,Zhou X,Jing L,Sun Z

更新日期：2021-03-01 00:00:00

abstract：:Cyanobacterial blooms as a global environmental issue are of public health concern. In this study, we investigated the spatial (10 sites) and temporal (June, August and October) variations in: 1) their biomass based on chlorophyll-a (chl-a) concentration, 2) their toxic genotype based on gene copy ratio of mcyJ to cpc...

journal_title：Chemosphere

authors： Guan DX,Wang X,Xu H,Chen L,Li P,Ma LQ

更新日期：2018-10-01 00:00:00

abstract：:This paper presents the results of investigations on the suitability of lugworms (Arenicola marina) to study the bioaccumulation potential of Hg, PCB and PAH compounds from dredged sediments upon laboratory exposure. The results of tissue concentrations for several sediments from Spanish ports showed that it is possib...

journal_title：Chemosphere

authors： Casado-Martínez MC,Branco V,Vale C,Ferreira AM,Delvalls TA

更新日期：2008-02-01 00:00:00

abstract：:Metal oxide nanoparticles, such as copper oxide (CuO), are mass produced for use in a variety of products like coatings and ceramics. Acute exposure to CuO nanoparticles has caused toxicity to many aquatic organisms, yet there is no information on the effect of prolonged CuO nanomaterial exposures. This study examined...

journal_title：Chemosphere

authors： Nations S,Long M,Wages M,Maul JD,Theodorakis CW,Cobb GP

更新日期：2015-09-01 00:00:00

abstract：:Despite increasing environmental concerns and stringent limitations on the sulfur content in fuels, many waste hydrodesulfurization (HDS) catalysts containing Co, Mo, Ni and V are generated in the petroleum refining process. To recover valuable metals in the waste HDS catalysts via hydrometallurgy, thermal treatment i...

journal_title：Chemosphere

authors： Lai YC,Lee WJ,Huang KL,Huang HH

更新日期：2007-09-01 00:00:00

abstract：:A geochemical study was carried out at the former Abbadia San Salvatore (ASS) mining site of the Monte Amiata ore district (Italy). Hg, As and Sb total contents and fractionation using a sequential extraction procedure were determined in soil and mining waste samples. Ore processing activities provided a different con...

journal_title：Chemosphere

authors： Protano G,Nannoni F

更新日期：2018-05-01 00:00:00

abstract：:More than 300 samples of human milk were collected from individuals residing in various regions across Canada in the years 1992 to 2005. The milks were taken from the main populated areas east to west in southern Canada as well as from the region of Nunavik in northern Quebec and analysed for polychlorinated dibenzo-p...

journal_title：Chemosphere

authors： Ryan JJ,Rawn DF

更新日期：2014-05-01 00:00:00

abstract：:Exposure to polycyclic aromatic hydrocarbons (PAHs) has been associated with adverse health outcomes. Concentrations of urinary PAH metabolites (OH-PAHs) provide an integrated measure of human exposure to PAHs but measurement of urinary OH-PAHs has not been done in Australia and rarely in Vietnam, where air pollution ...

journal_title：Chemosphere

authors： Thai PK,Li Z,Sjödin A,Fox A,Diep NB,Binh TT,Mueller JF

更新日期：2015-11-01 00:00:00

abstract：:Plants have evolved effective strategies to cope with heavy metals Cd toxicity, but the regulatory mechanism underlying Cd tolerance and accumulation are still poorly understood. miR156 has been shown to be the master regulator of development and stress response in plants. However, whether miR156 is also involved in p...

journal_title：Chemosphere

authors： Zhang L,Ding H,Jiang H,Wang H,Chen K,Duan J,Feng S,Wu G

更新日期：2020-03-01 00:00:00