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Monitoring of volatile and non-volatile urban air genotoxins using bacteria, human cells and plants

•Urban air contains many mutagenic pollutants.•Urban air in winter contains both volatile and non-volatile genotoxic substances.•Air pollutants induce genetic damage in bacteria, human cells and plants. Urban air contains many mutagenic pollutants. This research aimed to investigate the presence of...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2015-02, Vol.120, p.221-229
Main Authors: Ceretti, E., Zani, C., Zerbini, I., Viola, G., Moretti, M., Villarini, M., Dominici, L., Monarca, S., Feretti, D.
Format: Article
Language:English
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Summary:•Urban air contains many mutagenic pollutants.•Urban air in winter contains both volatile and non-volatile genotoxic substances.•Air pollutants induce genetic damage in bacteria, human cells and plants. Urban air contains many mutagenic pollutants. This research aimed to investigate the presence of mutagens in the air by short-term mutagenicity tests using bacteria, human cells and plants. Inflorescences of Tradescantia were exposed to air in situ for 6h, once a month from January to May, to monitor volatile compounds and micronuclei frequency was computed. On the same days PM10 was collected continuously for 24h. Half of each filter was extracted with organic solvents and studied by means of the Ames test, using Salmonella typhimurium TA98 and TA100 strains, and the comet assay on human leukocytes. A quarter of each filter was extracted with distilled water in which Tradescantia was exposed. PM10 concentration was particularly high in the winter season (>50μg/m3). In situ exposure of inflorescences to urban air induced a significant increase in micronuclei frequency at all the sites considered, but only in January (p
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2014.07.004