title: Biomonitoring air quality during and after a public transportation strike in the center of Uberlândia, Minas Gerais, Brazil by Tradescantia micronucleus bioassay.
abstract: The aim of this study was to address the lack of information concerning the air quality in the city of Uberlândia, Minas Gerais, Brazil. In this study, we conducted an unprecedented experiment involving the in situ biomonitoring of air genotoxicity in the city center during and after a public transportation strike using the Tradescantia micronucleus test. The frequency of micronuclei was significantly higher in the city center compared with the reference site (Mann-Whitney test, p < 0.05), with the highest MN levels being observed during public transport stoppage (Kruskal-Wallis, Dunn p < 0.01). In addition, the multiple linear regression analyses revealed that the low circulation of buses during public transport stoppage and the increase in the concentration of particulate matter from the increased flow of vehicles in the city center during the strike positively influenced the MN frequency. The climatic factors did not change during the biomonitoring period, reflecting the fact that climatic factors did not influence the MN frequency.
authors.affiliation: Department of Environmental Health, Laboratory of Vigilance in Environmental Health, Federal University of Uberlandia, Santa Monica Campus, Avenida João Naves de Ávila, 2121, 38.400-902, Uberlandia, Minas Gerais, Brazil, boscolli86@hotmail.com.
authors.forename: Boscolli Barbosa
authors.initials: BB
authors.lastname: Pereira
authors.forename: Edimar Olegário
authors.initials: EO
authors.lastname: de Campos
authors.forename: Euclides Antônio Pereira
authors.initials: EA
authors.lastname: de Lima
authors.forename: Marcos Antonio Souza
authors.initials: MA
authors.lastname: Barrozo
authors.forename: Sandra
authors.initials: S
authors.lastname: Morelli
mesh_terms: D000393:Air Pollutants / Q000032:analysis / Q000633:toxicity*; D001938:Brazil; D002947:Cities; D004249:DNA Damage; D018744:DNA, Plant; D004784:Environmental Monitoring / Q000379:methods; D035264:Flowers / Q000187:drug effects / Q000235:genetics; D015162:Micronucleus Tests; D018986:Motor Vehicles; D052638:Particulate Matter / Q000032:analysis / Q000633:toxicity*; D013317:Strikes, Employee; D034823:Tradescantia / Q000187:drug effects* / Q000235:genetics; D001335:Vehicle Emissions / Q000032:analysis / Q000633:toxicity*
chemical_list: D000393:Air Pollutants; D018744:DNA, Plant; D052638:Particulate Matter; D001335:Vehicle Emissions