Base de dados : MEDLINE
Pesquisa : D23.101.258 [Categoria DeCS]
Referências encontradas : 2 [refinar]
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[Au] Autor:Barroso PJ; Martín J; Santos JL; Aparicio I; Alonso E
[Ad] Endereço:Department of Analytical Chemistry, Escuela Politécnica Superior, University of Seville, C/ Virgen de África 7, 41011, Seville, Spain.
[Ti] Título:Analytical method for the evaluation of the outdoor air contamination by emerging pollutants using tree leaves as bioindicators.
[So] Source:Anal Bioanal Chem;410(2):417-428, 2018 Jan.
[Is] ISSN:1618-2650
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:In this work, an analytical method, based on sonication-assisted extraction, clean-up by dispersive solid-phase extraction and determination by liquid chromatography-tandem mass spectrometry, has been developed and validated for the simultaneous determination of 15 emerging pollutants in leaves from four ornamental tree species. Target compounds include perfluorinated organic compounds, plasticizers, surfactants, brominated flame retardant, and preservatives. The method was optimized using Box-Behnken statistical experimental design with response surface methodology and validated in terms of recovery, accuracy, precision, and method detection and quantification limits. Quantification of target compounds was carried out using matrix-matched calibration curves. The highest recoveries were achieved for the perfluorinated organic compounds (mean values up to 87%) and preservatives (up to 88%). The lowest recoveries were achieved for plasticizers (51%) and brominated flame retardant (63%). Method detection and quantification limits were in the ranges 0.01-0.09 ng/g dry matter (dm) and 0.02-0.30 ng/g dm, respectively, for most of the target compounds. The method was successfully applied to the determination of the target compounds on leaves from four tree species used as urban ornamental trees (Citrus aurantium, Celtis australis, Platanus hispanica, and Jacaranda mimosifolia). Graphical abstract Analytical method for the biomonitorization of emerging pollutants in outdoor air.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Folhas de Planta/química
Extração em Fase Sólida/métodos
Espectrometria de Massas em Tandem/métodos
[Mh] Termos MeSH secundário: Poluição do Ar/análise
Cromatografia Líquida de Alta Pressão/métodos
Biomarcadores Ambientais
Retardadores de Chama/análise
Limite de Detecção
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Environmental Biomarkers); 0 (Flame Retardants); 0 (Fluorocarbons); 0 (Plasticizers); 0 (Surface-Active Agents)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171208
[St] Status:MEDLINE
[do] DOI:10.1007/s00216-017-0733-8

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[Au] Autor:Sitko K; Rusinowski S; Kalaji HM; Szopinski M; Malkowski E
[Ad] Endereço:Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, 40-032 Katowice, Poland.
[Ti] Título:Photosynthetic Efficiency as Bioindicator of Environmental Pressure in .
[So] Source:Plant Physiol;175(1):290-302, 2017 Sep.
[Is] ISSN:1532-2548
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In earlier ecophysiological studies that were conducted on plants, scientists focused on the mechanisms of Cd and Zn hyperaccumulation but did not take into consideration the environmental factors that can significantly affect the physiological responses of plants in situ. In this study, we investigated that was growing on two nonmetalliferous and three metalliferous sites, which were characterized by different environmental conditions. We compared these populations in order to find differences within the metallicolous and nonmetallicolous groups that have not yet been investigated. The concentrations of several elements in the plant and soil samples also were investigated. To our knowledge, the concentration and fluorescence of chlorophyll were measured for in situ for the first time. Our study confirmed the hyperaccumulation of Cd and Zn for each metallicolous population. For the metallicolous populations, the inhibition of parameters that describe the efficiency of the photosynthetic apparatus with increasing accumulations of heavy metals in the shoots also was observed. It was found that the nonmetallicolous plant populations from the summit of Ciemniak Mountain had larger antenna dimensions and chlorophyll content but a lower percentage of active reaction centers. To our knowledge, in this study, the internal high physiological diversity within the populations that inhabit metalliferous and nonmetalliferous sites is presented for the first time.
[Mh] Termos MeSH primário: Arabidopsis/fisiologia
Biomarcadores Ambientais/efeitos dos fármacos
Metais Pesados/toxicidade
Fotossíntese/efeitos dos fármacos
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Arabidopsis/efeitos dos fármacos
Meio Ambiente
Metais Pesados/metabolismo
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/fisiologia
Brotos de Planta/efeitos dos fármacos
Brotos de Planta/fisiologia
Análise de Componente Principal
Poluentes do Solo/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Environmental Biomarkers); 0 (Metals, Heavy); 0 (Soil Pollutants); 00BH33GNGH (Cadmium); 2P299V784P (Lead); J41CSQ7QDS (Zinc)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE
[do] DOI:10.1104/pp.17.00212

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