Assessment of the Genotoxic Potential of Sediments Contaminated with POPs and Agricultural Soils Using Vicia faba Micronucleus Assay

作者：Juarez Santacruz Libertad; Garcia Nieto Edelmira^*; Costilla Salazar Rogelio; Garcia Gallegos Elizabeth; Coronel Olivares Claudia; Gomez Camarillo Madai; Gaytan Oyarzun Juan

来源：SOIL & SEDIMENT CONTAMINATION, 2013, 22(3): 288-300.

DOI：10.1080/15320383.2013.726293

• Genotoxicity
• PCB congeners
• pesticides
• Zahuapan and Atoyac rivers

The aim of this study was to assess the levels of some persistent organic pollutants in the surface sediments from the Zahuapan and Atoyac rivers (Tlaxcala, Mexico), as well as to determine the genotoxic potential, by the micronucleus test in Vicia faba, of the sediments and agricultural soils irrigated with water from these rivers. This document is the first study on the presence of POPs in surface sediments of the above-mentioned rivers; among the compounds analyzed are the HCH isomers, DDT and its metabolite DDE, HCB, mirex, aldrin, and 41 PCB congeners. The concentrations of HCB, sigma DDTs, sigma HCHs, and sigma PCBs ranged from 138510, 45450, 327, and 591876g kg(1) dry weight, respectively. The highest levels of HCB, HCH isomers, and PCB congeners were found in the Atoyac River, and these compounds have the potential for causing an environmental impact. On the other hand, biological testing shows that both sediments and agricultural soils possess a genotoxic potential, given that the micronuclei frequency in V. faba is increased.

• 出版日期2013-4-1