Detection of the genotoxicity of air pollutants in and around the city of São Paulo (Brazil) with the Tradescantia-micronucleus (Trad-MCN) assay

Guimarães, Eliane Tigre; Domingos, Marisa; Alves, Edenise Segala; N, Caldini; Lobo, D.J.A.; Lichtenfels, A.J.F.C.; Saldiva, Paulo Hilário Nascimento

doi:10.1016/s0098-8472(00)00050-2

Cited by 86 publications

(80 citation statements)

References 16 publications

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“…Plants maintained in the area of Congonhas tended to present higher levels than did those kept in Cerqueira César, and both polluted sites exhibited much higher levels of most elements than did the control area. These findings were similar to previous measurements of mutagenesis in Tradescantia performed in the same locations, 11,12 reinforcing the possible role of this higher plant as a detector of the effects of airborne contaminants.…”

Section: Discussionsupporting

confidence: 90%

“…Previous studies from our group reported an increased frequency of mutation in the DNA of pollen mother cells in T. pallida samples exposed to urban air pollution in São Paulo. 11,12 In the present study, the feasibility of using T. pallida for the biomonitoring of air pollution was explored further, assessing the capability of this plant to accumulate air pollution within its leaves, acting as a biological pollution sampler. The specific aim of this study was to verify whether the elemental composition of leaves taken from T. pallida could characterize areas with different air pollution levels in São Paulo.…”

Section: Discussionmentioning

confidence: 99%

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Tradescantia pallida cv. purpurea Boom in the Characterization of Air Pollution by Accumulation of Trace Elements

Sumita

Mendes

Macchione

et al. 2003

Journal of the Air & Waste Management Association

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Tradescantia pallida cv. purpurea, a plant species widely employed for ornamentation in Brazil, has been successfully used for monitoring the genotoxicity of various agents by the micronucleus assay. To amplify knowledge about its suitability as a bioindicator species, its capacity for accumulating trace elements from urban air pollution was evaluated. T. pallida was rooted using standardized soil, and the vases were distributed in two highly polluted sites of the urban area of São Paulo, Brazil (Cerqueira César and Congonhas districts), and in one unpolluted control site situated approximately 50 km from downtown São Paulo (in Caucaia do Alto). Approximately six months after exposure to pollutants, adult leaves of this plant were collected monthly for 12 months. The leaves were washed with deionized water, dried, and ground for analyses. Characterization of element levels was carried out by neutron activation analysis. Powdered samples and standards were irradiated at the IEA-R1 nuclear reactor for short and long periods, and concentrations of As,

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Tradescantia pallida cv. purpurea Boom in the Characterization of Air Pollution by Accumulation of Trace Elements

Sumita

Mendes

Macchione

et al. 2003

Journal of the Air & Waste Management Association

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“…An appropriate alternative to the environmental conditions found in tropical countries is the use of Tradescantia pallida. Several studies have demonstrated its sensitivity to the genotoxic compounds from air pollutants in situ (Batalha et al, 1999;Guimarães et al, 2000;Carreras et al, 2006;Prajapati and Tripathi, 2008;Mariani et al, 2009;Meireles et al, 2009;Savóia et al, 2009;Sisenando et al, 2011;Pereira et al, 2013) and ex situ (Carvalho-Oliveira et al, 2005;Alves et al, 2011Alves et al, , 2014Carreras et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Cashew nut roasting: Chemical characterization of particulate matter and genotocixity analysis

Galvão

Cabral

André

et al. 2014

Environmental Research

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“…Para Guimarães et al (2000) em estudo realizado na cidade de São Paulo em duas regiões que possuem diversas avenidas com intenso tráfego veicular com diversos tipos de veículos, Congonhas e Cerqueira Cesar, a frequência de MCN observada foi em torno de 5,7% e 3,9%, respectivamente.…”

Section: Resultsunclassified

Biomonitoramento do ar com Tradescantia pallida (Rose) D. R. Hunt var purpurea Boom (Commelinaceae)

Teixeira¹,

Barbério²

2012

Ambi-Agua

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RESUMOO crescimento populacional e o conforto gerado pelo progresso têm contribuído amplamente para o aumento da poluição do ar, fazendo com que o ar de vários centros urbanos apresente cada vez mais substâncias nocivas aos seres vivos. O presente estudo objetivou caracterizar a qualidade do ar no município de Taubaté, Vale do Paraíba-SP utilizando biomonitoramento com Tradescantia pallida (Rose) D. R. Hunt purpurea Boom (Commelinaceae). O estudo foi desenvolvido num período de 10 meses (setembro/2010 a junho/2011) em cinco localidades (Rodovia Presidente Dutra -tráfego veicular intenso; Estiva -área residencial; Parque Aeroporto -área industrial; Campus Bom Conselho -centro da cidade com alto fluxo veicular e Agronomia -área rural. Foram realizadas semanalmente coletas das inflorescências jovens das plantas expostas. Após a coleta, as inflorescências foram fixadas em solução de etanol/ácido acético glacial (3:1) por 24 h, transferidas para solução de etanol 70% e conservadas sob refrigeração. As mesmas foram submetidas à coloração com carmim acético e quantificado o número de micronúcleos em aproximadamente 300 tétrades para cada inflorescência, sendo confeccionadas lâminas com 10 inflorescências/semana para cada ponto estudado. As médias e desvios padrões foram: Dutra (2,24 ± 1,58), Estiva (2,07 ± 1,33), Parque Aeroporto (1,47 ± 1,05), Bom Conselho (1,42 ± 0,90) e Agronomia (0,82 ± 0,80). Apesar de Taubaté ser uma região em crescimento urbano, os dados revelaram que o ar da cidade apresentou boa qualidade. Manter esse equilíbrio é fundamental, requer esforços e aferição periódica, neste sentido, o biomonitoramento é um método rápido, barato e eficiente. ABSTRACTThe population growth and the comfort generated by progress have greatly contributed with the increase in the air pollution, making the air in several urban centers polluted by substances that are harmful to human being. This study characterized the air quality in the city of Taubaté, Vale do Paraíba-SP using biomonitoring with Tradescantia pallida (Rose) D. R. Hunt purpurea Boom (Commelinaceae). The study was developed in a period of 10 months (September/2010 to June/2011) in five locations (Rodovia Presidente Dutra -heavy vehicle traffic; Estiva -residential area; Parque Aeroporto -industrial area); Campus Bom Conselho -area in the city with heavy vehicle traffic and Agronomy -rural area. Samples were TEIXEIRA, M. C. V.; BARBÉRIO, A. Biomonitoramento do ar com Tradescantia pallida (Rose) D. R. Hunt var purpurea Boom (Commelinaceae). Ambi-Agua, Taubaté, v. 7, n. 3, p. 279-292, 2012. (http://dx.doi.org/10.4136/ambi-agua.982) 280 collected on a weekly basis from young inflorescences of exposed plants. After the inflorescences were collected, they were fixed in an absolute ethanol-glacial acetic acid (3:1) solution for 24 h, transferred to ethanol 70% solution and maintained under refrigeration. They were submitted to coloration with acetic carmine and the number of micronucleus was quantified in approximately 300 tetrads for each inflorescence, and slid...

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Detection of the genotoxicity of air pollutants in and around the city of São Paulo (Brazil) with the Tradescantia-micronucleus (Trad-MCN) assay

Cited by 86 publications

References 16 publications

Tradescantia pallida cv. purpurea Boom in the Characterization of Air Pollution by Accumulation of Trace Elements

Tradescantia pallida cv. purpurea Boom in the Characterization of Air Pollution by Accumulation of Trace Elements

Cashew nut roasting: Chemical characterization of particulate matter and genotocixity analysis

Biomonitoramento do ar com Tradescantia pallida (Rose) D. R. Hunt var purpurea Boom (Commelinaceae)

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