title: Biomonitoring of the environmental genotoxic potential of emissions from a complex of ceramic industries in Monte Carmelo, Minas Gerais, Brazil, using Tradescantia pallida.
abstract: The micronucleus (MN) test and analysis of heavy metal biological accumulation in Tradescantia pallida (T. pallida) were bioassays used to assess the genotoxic potential of emissions from a complex of ceramic industries into the atmosphere in a city in Brazil that is considered a national reference source for roof tile production. The ceramic industry emission-exposed T. pallida plants were biomonitored during the dry season, in June, July, and August 2013. In addition to the contaminated monitoring site, a reference site in a peri-urban area was utilized, for comparative purposes. Genotoxicity assessments were determined monthly, while heavy metal bioaccumulation was measured at the end of the total exposure period. The MN frequency was significantly greater in T. pallida plants exposed in the ceramic industry emission monitored area compared to the reference site, and highest MN rates were observed in July and August. With respect to heavy metal bioaccumulation in T. pallida leaves, cadmium (Cd) and chromium (Cr) concentrations were significantly higher in plants at the ceramic industry emission monitoring site. Thus, in relation to the parameters assessed, T. pallida was found to be sensitive to atmospheric contamination by heavy metals attributed to ceramic products emissions generated by the ceramic industry, confirming that this plant species may be employed as a reference organism in biomonitoring studies.
authors.affiliation: a Federal University of Uberlândia, Department of Genetics and Biochemistry , Laboratory of Cytogenetics and Mutagenesis, Umuarama Campus , Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais , Brazil.
authors.forename: Carlos Fernando
authors.initials: CF
authors.lastname: Campos
authors.affiliation: a Federal University of Uberlândia, Department of Genetics and Biochemistry , Laboratory of Cytogenetics and Mutagenesis, Umuarama Campus , Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais , Brazil.
authors.forename: Edimar Olegário de Campos
authors.initials: EO
authors.lastname: Júnior
authors.affiliation: a Federal University of Uberlândia, Department of Genetics and Biochemistry , Laboratory of Cytogenetics and Mutagenesis, Umuarama Campus , Avenida Pará, 1720, 38.400-902 Uberlândia, Minas Gerais , Brazil.
authors.forename: Henrique Nazareth
authors.initials: HN
authors.lastname: Souto
authors.affiliation: b Fundação Carmelitana Mário Palmério , Department of Biological Sciences , Avenida Brasil Oeste, 38.500-000, Monte Carmelo, Minas Gerais , Brazil.
authors.forename: Eduardo de Freitas
authors.initials: Ede F
authors.lastname: Sousa
authors.affiliation: c Federal University of Uberlândia, Department of Environmental Health , Laboratory of Environmental Health, Santa Monica Campus , Avenida João Naves de Ávila, 2121, 38.408-100, Uberlândia, Minas Gerais , Brazil.
authors.forename: Boscolli Barbosa
authors.initials: BB
authors.lastname: Pereira
mesh_terms: D001681:Biological Assay / Q000379:methods; D001938:Brazil; D002104:Cadmium / Q000032:analysis; D002516:Ceramics; D002857:Chromium / Q000032:analysis; D004249:DNA Damage / Q000187:drug effects*; D004784:Environmental Monitoring / Q000379:methods*; D007220:Industrial Waste / Q000009:adverse effects; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis; D015162:Micronucleus Tests; D009532:Nickel / Q000032:analysis; D012621:Seasons; D034823:Tradescantia / Q000737:chemistry / Q000187:drug effects*
chemical_list: D007220:Industrial Waste; D019216:Metals, Heavy; D002104:Cadmium; D002857:Chromium; D007854:Lead; D009532:Nickel