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Analysis of genotoxic effects on plants exposed to high traffic volume in urban crossing intersections
Chemosphere ( IF 5.778 ) Pub Date : 2020-06-29 , DOI: 10.1016/j.chemosphere.2020.127511
Carlos Fernando Campos; Matheus Campos Cunha; Vanessa Santana Vieira Santos; Edimar Olegário de Campos Júnior; Ana Maria Bonetti; Boscolli Barbosa Pereira

A biological assessment of environmental quality was performed using the tropical plant species Tradescantia pallida (Rose) D.R. Hunt. var. purpurea exposed to different levels of air contamination in urban intersections with high volume of vehicle traffic. Air quality (average daily levels of particulate material in the PM1, 2.5, 10 fractions) and traffic volume in crossing intersections were monitored for 30 days before the collection of plants. Frequency of micronuclei and pollen abortivity in inflorescences collected at different intersections with gradual levels of traffic volume were evaluated as biomarkers of genotoxicity. In addition, the concentrations of bioaccumulated heavy metals in the leaves of the collected plants were also investigated. The proposed biological assessment model found a positive association between the environmental variables (traffic volume; concentration of particulate material) and biological effects (leaf concentration of Cr and Cd; micronucleus frequencies and pollen abortivity).
更新日期:2020-06-29

 

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