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  1 / 3061 MEDLINE  
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[PMID]:29342167
[Au] Autor:Piotrowska A; Syguda A; Wyrwas B; Chrzanowski L; Luckenbach T; Heipieper HJ
[Ad] Endereço:Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
[Ti] Título:Effects of ammonium-based ionic liquids and 2,4-dichlorophenol on the phospholipid fatty acid composition of zebrafish embryos.
[So] Source:PLoS One;13(1):e0190779, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ionic liquids consisting of a combination of herbicidal anions with a quaternary ammonium cation act as efficient herbicides, which are under consideration to be used in the agriculture. In the present study, we used embryos of the zebrafish (Danio rerio) as a model to assess the toxic potential of ammonium-based ionic liquids for aquatic organisms. As we assumed interference of the partially hydrophobic ionic liquid cation with lipids, we investigated the adaptation response in the lipid composition of the zebrafish embryos, triggered by the ionic compound. Therefore, the impact of ammonium-based ionic liquids with different lengths of the alkyl chain ([C6,C6,C1,C1N][Br], [C8,C8,C1,C1N][Br]) on the phospholipid fatty acid (PLFA) profile of zebrafish embryos up to 72 hours post fertilization (hpf) was examined. Furthermore, the changes in the unsaturation index (UI) of PLFAs, as the sum parameter of membrane fluidity in eukaryotic cells, were presented. The PLFA's UI in the zebrafish embryos upon exposure to quaternary ammonium salts was compared to the UI of the embryos upon exposure to nonionic 2,4-dichlorophenol, which has a similar hydrophobicity but is structurally different to [C8,C8,C1,C1N][Br]. It was shown that for ammonium-based ionic liquid precursors non-specific mode of action occurs and the toxic effect on lipid composition of zebrafish embryos can be well predicted based on chemical properties, like hydrophobicity. Furthermore, the changes in PLFAs, expressed by the UI, can be useful to study toxic effects of organic contamination. However, for zebrafish embryos, after ionic liquids and 2,4-DCP exposure, the changes were observed at high lethal concentrations, which caused the incidence of lethality of 30 and 50% of a group of test animals.
[Mh] Termos MeSH primário: Compostos de Amônio/toxicidade
Clorofenóis/toxicidade
Embrião não Mamífero/efeitos dos fármacos
Herbicidas/toxicidade
Líquidos Iônicos/toxicidade
Peixe-Zebra/embriologia
[Mh] Termos MeSH secundário: Animais
Interações Hidrofóbicas e Hidrofílicas
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Ammonium Compounds); 0 (Chlorophenols); 0 (Herbicides); 0 (Ionic Liquids); R669TG1950 (2,4-dichlorophenol)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180118
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190779


  2 / 3061 MEDLINE  
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[PMID]:28939122
[Au] Autor:Guan M; Fang W; Ullah S; Zhang X; Saquib Q; Al-Khedhairy AA
[Ad] Endereço:State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
[Ti] Título:Functional genomics assessment of narcotic and specific acting chemical pollutants using E. coli.
[So] Source:Environ Pollut;232:146-153, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The knowledge of gene-chemical interaction can be used to derive toxicological mechanism of chemical pollutants, therefore, it might be useful to discriminate chemicals with different mechanisms. In this study, three narcotic chemicals (4-chlorophenol (4-CP), 3, 4-dichloroaniline (DCA) and 2, 2, 2-trichloroethanol (TCE)) and three specific acting chemicals (triclosan (TCS), clarithromycin (CLARY), sulfamethoxazole (SMX)) were assessed by Escherichia coli (E. coli) genome-wide knockout screening. 66, 97, 88, 144, 198 and 180 initial robust hits were identified by exposure to 4-CP, DCA, TCE, TCS, CLARY and SMX with two replicates at the concentration of IC50, respectively. The average fold change values of responsive mutants to the three narcotic chemicals were smaller than the three specific acting chemicals. The common gene ontology (GO) term of biological process enriched by the three narcotic chemicals was "response to external stimulus" (GO: 0009605). Other GO terms like "lipopolysaccharide biosynthetic process" (induced by 4-CP) and "purine nucleotide biosynthetic process" (induced by DCA) were also influenced by the narcotic chemicals. The toxic target of three known specific acting chemicals could be validated by GSEA of responsive genes. Four genes (flhC, fliN, fliH and flhD) might serve as potential biomarkers to distinguish narcotic chemicals and specific acting chemicals. The E. coli functional genomic approach presented here has shown great potential not only for the molecular mechanistic screening of chemicals, rather it can discriminate chemicals based on their mode-of-action.
[Mh] Termos MeSH primário: Poluentes Ambientais/toxicidade
Escherichia coli/genética
Entorpecentes/toxicidade
[Mh] Termos MeSH secundário: Clorofenóis/toxicidade
Escherichia coli/efeitos dos fármacos
Genômica
Testes de Toxicidade
Triclosan/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Environmental Pollutants); 0 (Narcotics); 3DLC36A01X (4-chlorophenol); 4NM5039Y5X (Triclosan)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170924
[St] Status:MEDLINE


  3 / 3061 MEDLINE  
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[PMID]:28450258
[Au] Autor:Han Y; Sun Y; Chen H; Guo X; Yu C; Li Y; Liu J; Xiao B
[Ad] Endereço:Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
[Ti] Título:Effects of wastewater treatment processes on the sludge reduction system with 2,4-dichlorophenol: Sequencing batch reactor and anaerobic-anoxic-oxic process.
[So] Source:J Biotechnol;251:99-105, 2017 Jun 10.
[Is] ISSN:1873-4863
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The effects of two wastewater treatment processes (sequencing batch reactor, SBR; and anaerobic-anoxic-oxic, A2O) on sludge reduction with metabolic uncoupler 2,4-dichlorophenol (DCP) were studied in laboratory. The experimental results showed that the reduction of cumulative excess sludge in SBR and A2O was 43.7% and 44.2%, respectively, during the stable stage of the test. The two processes had similar average sludge yield and sludge yield reduction, i.e., 0.306 and 0.305mg of SS/mg chemical oxygen demand (COD), and 16.9% and 17.8%, respectively. The effect of DCP on the wastewater treatment efficiencies (namely, removal of COD, total nitrogen, NH -N, and total phosphorus) of the two processes were also similar. SBR was more likely to slightly retard the increase of activated sludge SVI with lesser increase in extracellular polymeric substances and protein/polysaccharide ratio. Although DCP did not dramatically affect the microbial communities of sludge, SBR was more favorable for increasing the activated sludge SOUR and maintaining the primary microorganisms of sludge than A2O.
[Mh] Termos MeSH primário: Reatores Biológicos
Clorofenóis
Esgotos
Eliminação de Resíduos Líquidos/métodos
[Mh] Termos MeSH secundário: Compostos de Amônio/metabolismo
Anaerobiose
Análise da Demanda Biológica de Oxigênio
Reatores Biológicos/microbiologia
Nitrogênio/metabolismo
Oxigênio/metabolismo
Fósforo/metabolismo
Esgotos/microbiologia
Poluentes Químicos da Água/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Ammonium Compounds); 0 (Chlorophenols); 0 (Sewage); 0 (Water Pollutants, Chemical); 27YLU75U4W (Phosphorus); N762921K75 (Nitrogen); R669TG1950 (2,4-dichlorophenol); S88TT14065 (Oxygen)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE


  4 / 3061 MEDLINE  
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[PMID]:28966025
[Au] Autor:Honda M; Kannan K
[Ad] Endereço:Wadsworth Center, New York State Department of Health, Empire State Plaza, Albany, NY 12201-0509, USA.
[Ti] Título:Biomonitoring of chlorophenols in human urine from several Asian countries, Greece and the United States.
[So] Source:Environ Pollut;232:487-493, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Chlorophenols (CPs) are used in the production of pesticides and preservatives. Although human exposure to CPs has been known for years, current exposure levels to these chemicals in Asian countries are not known. In this study, we analyzed concentrations of eight CPs in 300 human urine samples collected from nine countries. Of these CPs, 2,5-dichlorophenol and 2,4-dichlorophenol were found at the highest median concentrations (median for all nine countries: 1.78 and 0.34 ng/mL, respectively). Pentachlorophenol was found in 59% of the samples analyzed at a median concentration of 0.07 ng/mL. Urine samples from Japan had the highest concentration of total CPs (median: 16.7 ng/mL) with 2,5-dichlorophenol accounting for 93.1% of the total concentration. The estimated daily intake (DI) for precursors of dichlorophenols varied widely, but several samples showed values higher than the acceptable DI recommended by the United States Environmental Protection Agency (EPA). These results suggest that CP exposure, especially to dichlorophenols, is prevalent in several countries, particularly in Asia, suggesting a pressing need for further assessment of the global sources and potential health effects of these chemicals.
[Mh] Termos MeSH primário: Clorofenóis/urina
Exposição Ambiental/análise
Poluentes Ambientais/urina
[Mh] Termos MeSH secundário: Ásia
Meio Ambiente
Exposição Ambiental/estatística & dados numéricos
Monitoramento Ambiental
Grécia
Seres Humanos
Japão
Nível de Efeito Adverso não Observado
Pentaclorofenol
Praguicidas
Fenóis/urina
Estados Unidos
United States Environmental Protection Agency
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Environmental Pollutants); 0 (Pesticides); 0 (Phenols); 3B11G9AKBA (2,5-dichlorophenol); D9BSU0SE4T (Pentachlorophenol); R669TG1950 (2,4-dichlorophenol)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180119
[Lr] Data última revisão:
180119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171003
[St] Status:MEDLINE


  5 / 3061 MEDLINE  
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[PMID]:28734212
[Au] Autor:Wang J; Liao Z; Ifthikar J; Shi L; Du Y; Zhu J; Xi S; Chen Z; Chen Z
[Ad] Endereço:Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Environmen
[Ti] Título:Treatment of refractory contaminants by sludge-derived biochar/persulfate system via both adsorption and advanced oxidation process.
[So] Source:Chemosphere;185:754-763, 2017 Oct.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A novel strategy for the removal of refractory organic contaminants was realized through sludge-derived biochar (SDBC)/persulfate (PS) system via both adsorption and advanced oxidation process under ambient conditions. SDBC was prepared by one single step of slow pyrolysis of municipal sewage sludge, appeared a porous structure, and contained abundant oxygen-containing functional groups as well as amorphous Fe species. Large surface area and porous structure of SDBC benefitted the adsorption and enrichment of contaminants, while oxygen-containing functional groups and Fe species on the surface were considered as reactive components for the activation of PS. Under conditions of [PS] = 1.85 mM, [4-chlorophenol] = 0.039 mM, [SDBC] = 1 g L , pH = 6.30 and temperature = 25 °C, the removal of model compound of 4-chlorophenol achieved 92.3%, and this significant performance of SDBC/PS system was consistent in a broad pH window. Radical scavengers and electron paramagnetic resonance (EPR) studies suggested that SDBC successfully activated PS to produce various oxidative radicals. Meanwhile, recycle experiments and Fe leaching tests further demonstrated the stability of SDBC during the activation of PS. Municipal landfill leachate effluent through a membrane bio-reactor was testified as the refractory real wastewater, in which both the removal of total organic carbon and ammonia was significant. Thus, SDBC showed certain advantages in PS activation such as feasible preparation method, remarkable efficiency and stability. These advantages proved SDBC/PS system as an effective strategy of controlling waste by waste, and implicated its potential application in full-scale for the treatment of refractory organic contaminants.
[Mh] Termos MeSH primário: Carvão Vegetal/química
Eliminação de Resíduos Líquidos/métodos
Águas Residuais/química
[Mh] Termos MeSH secundário: Adsorção
Amônia/química
Clorofenóis/química
Oxirredução
Esgotos/química
Sulfatos/química
Temperatura Ambiente
Poluentes Químicos da Água/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Sewage); 0 (Sulfates); 0 (Waste Water); 0 (Water Pollutants, Chemical); 0 (biochar); 16291-96-6 (Charcoal); 3DLC36A01X (4-chlorophenol); 7664-41-7 (Ammonia)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171017
[Lr] Data última revisão:
171017
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170723
[St] Status:MEDLINE


  6 / 3061 MEDLINE  
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[PMID]:28683332
[Au] Autor:Asim S; Zhu Y; Batool A; Hailili R; Luo J; Wang Y; Wang C
[Ad] Endereço:Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, Chi
[Ti] Título:Electrochemical treatment of 2, 4-dichlorophenol using a nanostructured 3D-porous Ti/Sb-SnO -Gr anode: Reaction kinetics, mechanism, and continuous operation.
[So] Source:Chemosphere;185:11-19, 2017 Oct.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:2, 4-dichlorophenol (2, 4-DCP) is considered to be a highly toxic, mutagenic, and possibly carcinogenic pollutant. This study is focused on the electrochemical oxidation of 2, 4-DCP on nanostructured 3D-porous Ti/Sb-SnO -Gr anodes, with the aim of presenting a comprehensive elucidation of mineralization process through the investigation of influential kinetics, the reactivity of hydroxyl radical's and analysis of intermediates. High efficiency was achieved at pH of 3 using Na SO electrolytes at a current density of 30 mA cm . Under the optimized conditions, a maximum removal of 2, 4-DCP of up to 99.9% was reached, whereas a TOC removal of 81% was recorded with the lowest EC (0.49 kW h g ) within 40 min of electrolysis. To explore the stability of the 3D-Ti/Sb-SnO -Gr electrodes, a continuous electrochemical operation was established, and the consistent mineralization results indicated the effectiveness of the 3D-Ti/Sb-SnO -Gr system concerning its durability and practical utilization. EPR studies demonstrated the abundant generation of OH radicals on 3D-Ti/Sb-SnO -Gr, resulting in fast recalcitrant pollutant incineration. From dechlorination and the reactivity of the OH radicals, several intermediates including six cyclic byproducts and three aliphatic carboxylic acids were detected, and two possible degradation pathways were proposed that justify the complete mineralization of 2, 4-DCP.
[Mh] Termos MeSH primário: Clorofenóis/química
Técnicas Eletroquímicas
Nanoestruturas/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Eletrodos
Eletrólise
Halogenação
Cinética
Oxirredução
Fenóis
Porosidade
Titânio
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Phenols); 0 (Water Pollutants, Chemical); D1JT611TNE (Titanium); R669TG1950 (2,4-dichlorophenol)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171102
[Lr] Data última revisão:
171102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170707
[St] Status:MEDLINE


  7 / 3061 MEDLINE  
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[PMID]:28647241
[Au] Autor:Yan Z; He H; Yang C; Zeng G; Luo L; Jiao P; Li H; Lu L
[Ad] Endereço:College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China.
[Ti] Título:Biodegradation of 3,5-dimethyl-2,4-dichlorophenol in saline wastewater by newly isolated Penicillium sp. yz11-22N2.
[So] Source:J Environ Sci (China);57:211-220, 2017 Jul.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In this study, the performance of 3,5-dimethyl-2,4-dichlorophenol (DCMX) degradation by a screened strain was investigated. 18S rDNA and the neighbor-joining method were used for identification of the isolated strain. The results of phylogenetic analysis and scanning electron micrographs showed that the most probable identity of the screened strain should be Penicillium sp. Growth characteristics of Penicillium sp. and degradation processes of DCMX were examined. Fourier transform infrared spectroscopy of the inoculated DCMX solution was recorded, which supported the capacity of DCMX degradation by the screened Penicillium sp. Under different salinity conditions, the highest growth rate and removal efficiency for DCMX were obtained at pH6.0. The removal efficiency decreased from 100% to 66% when the DCMX concentration increased from 5 to 60mg/L, respectively. Using a Box-Behnken design, the maximum DCMX removal efficiency was determined to be 98.4%. With acclimation to salinity, higher removal efficiency could be achieved. The results demonstrate that the screened Penicillium sp. has the capability for degradation of DCMX.
[Mh] Termos MeSH primário: Clorofenóis/metabolismo
Penicillium/metabolismo
Águas Residuais/microbiologia
Poluentes Químicos da Água/metabolismo
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Clorofenóis/análise
Penicillium/genética
Penicillium/isolamento & purificação
Salinidade
Eliminação de Resíduos Líquidos
Águas Residuais/química
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Waste Water); 0 (Water Pollutants, Chemical); R669TG1950 (2,4-dichlorophenol)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170630
[Lr] Data última revisão:
170630
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170626
[St] Status:MEDLINE


  8 / 3061 MEDLINE  
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[PMID]:28623828
[Au] Autor:Zhang M; Buekens A; Olie K; Li X
[Ad] Endereço:State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, China.
[Ti] Título:PCDD/F-isomers signature - Effect of metal chlorides and oxides.
[So] Source:Chemosphere;184:559-568, 2017 Oct.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A recent paper presented the results from de novo tests, involving 11 distinct catalytic systems (oxides and chlorides of Cd, Cr, Cu, Ni, and Zn, as well as a blank sample). Their PCDD and PCDF formation activity was shown. This paper further assesses their isomer signature, with special emphasis on those congeners associated with chlorophenol precursor routes, and on 2,3,7,8- and 1,9-substituted congeners. Each metal catalyst generates a significantly different signature, also affected by the presence or absence of oxygen in the reaction atmosphere. Oxide and chloride catalysts supply distinctive signatures, suggesting singly weighted pathways. Quite a large number of data was handled, so that throughout this analysis special attention was given to testing and developing an appropriate methodology, allowing appropriate correlation analysis and statistical data treatment. The large tables resulting relate to the 11 catalytic systems, studied at 3 levels of oxygen concentration, with 94 PCDD/F-congeners considered individually. They constitute an extensive reference data bank for confronting novel experimental data with this vast data set.
[Mh] Termos MeSH primário: Poluentes Ambientais/química
Metais/química
Dibenzodioxinas Policloradas/química
[Mh] Termos MeSH secundário: Catálise
Cloretos/química
Clorofenóis/química
Isomerismo
Óxidos/química
Oxigênio/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorides); 0 (Chlorophenols); 0 (Environmental Pollutants); 0 (Metals); 0 (Oxides); 0 (Polychlorinated Dibenzodioxins); S88TT14065 (Oxygen)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170618
[St] Status:MEDLINE


  9 / 3061 MEDLINE  
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[PMID]:28609737
[Au] Autor:Lv T; Carvalho PN; Casas ME; Bollmann UE; Arias CA; Brix H; Bester K
[Ad] Endereço:Department of Bioscience, Aarhus University, Aarhus 8000C, Denmark. Electronic address: lvtao@bios.au.dk.
[Ti] Título:Enantioselective uptake, translocation and degradation of the chiral pesticides tebuconazole and imazalil by Phragmites australis.
[So] Source:Environ Pollut;229:362-370, 2017 Oct.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Phytoremediation of realistic environmental concentrations (10 µg L ) of the chiral pesticides tebuconazole and imazalil by Phragmites australis was investigated. This study focussed on removal dynamics, enantioselective mechanisms and transformation products (TPs) in both hydroponic growth solutions and plant tissues. For the first time, we documented uptake, translocation and metabolisation of these pesticides inside wetland plants, using enantioselective analysis. Tebuconazole and imazalil removal efficiencies from water reached 96.1% and 99.8%, respectively, by the end of the experiment (day 24). Removal from the solutions could be described by first-order removal kinetics with removal rate constants of 0.14 d for tebuconazole and 0.31 d for imazalil. Removal of the pesticides from the hydroponic solution, plant uptake, within plant translocation and degradation occurred simultaneously. Tebuconazole and imazalil concentrations inside Phragmites peaked at day 10 and 5d, respectively, and decreased thereafter. TPs of tebuconazole i.e., (5-(4-Chlorophenyl)-2,2-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)-1,3-pentanediol and 5-(3-((1H-1,2,4-Triazol-1-yl)methyl)-3-hydroxy-4,4-dimethylpentyl)-2-chlorophenol) were quantified in solution, while the imazalil TPs (α-(2,4-Dichlorophenyl)-1H-imidazole-1-ethanol and 3-[1-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-yl)ethoxy]-1,2-propanediol) were quantified in both solution and plant tissue. Pesticide uptake by Phragmites was positively correlated with evapotranspiration. Pesticide removal from the hydroponic solution was not enantioselective. However, tebuconazole was degraded enantioselectively both in the roots and shoots. Imazalil translocation and degradation inside Phragmites were also enantioselective: R-imazalil translocated faster than S-imazalil.
[Mh] Termos MeSH primário: Imidazóis/metabolismo
Praguicidas/metabolismo
Poaceae/metabolismo
Triazóis/metabolismo
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Clorofenóis
Hidroponia
Imidazóis/química
Praguicidas/química
Raízes de Plantas/metabolismo
Propilenoglicol/metabolismo
Triazóis/química
Zonas Úmidas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chlorophenols); 0 (Imidazoles); 0 (Pesticides); 0 (Triazoles); 401ATW8TRW (tebuconazole); 6DC9Q167V3 (Propylene Glycol); 6K0NOF3XQ6 (enilconazole); 7GBN705NH1 (imidazole); K9KAV4K6BN (2-chlorophenol)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170614
[St] Status:MEDLINE


  10 / 3061 MEDLINE  
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[PMID]:28527415
[Au] Autor:Fang C; Wang Z; Feng M; Huang Y; Yang F; Liu J
[Ad] Endereço:State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
[Ti] Título:Trace bromide ion impurity leads to formation of chlorobromoaromatic by-products in peroxymonosulfate-based oxidation of chlorophenols.
[So] Source:Chemosphere;182:624-629, 2017 Sep.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Trace bromide (Br ) released from industrial effluents or brominated compounds is able to directly react with peroxymonosulfate (PMS) to generate a series of reactive oxidants which can oxidize and also halogenate organics. We report the identification and evolution of by-products during 2,4,6-trichlorophenol (TCP) degradation in the presence of PMS and trace Br . The influencing factors, including Br concentration and pH, were investigated. The depletion of TCP was accelerated with increasing trace Br concentration (0-0.2 mM) and was affected by the initial pH (3.0-7.0). The chlorinated and brominated compounds were identified in simulated wastewater during treatment with PMS. Notably, the potential formation of chlorobromoaromatic by-products was demonstrated for the first time in the presence of PMS and trace Br . The possible reaction pathways of TCP and its derivatives are discussed. These findings have important implications for the future applications of PMS-based oxidation processes.
[Mh] Termos MeSH primário: Brometos/química
Clorofenóis/química
Recuperação e Remediação Ambiental/métodos
Peróxidos/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Halogenação
Concentração de Íons de Hidrogênio
Oxirredução
Pesquisa
Águas Residuais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bromides); 0 (Chlorophenols); 0 (Peroxides); 0 (Waste Water); 0 (Water Pollutants, Chemical); 22047-43-4 (peroxymonosulfate); MHS8C5BAUZ (2,4,6-trichlorophenol)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170521
[St] Status:MEDLINE



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