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Evaluation of the genotoxic potential of municipal waste water discharged into the Paraguay River during periods of flood and drought
Author(s) -
Serra de Lima Moraes Danielle,
Jordão Berenice Quinzani
Publication year - 2001
Publication title -
environmental toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 77
eISSN - 1522-7278
pISSN - 1520-4081
DOI - 10.1002/tox.1013
Subject(s) - genotoxicity , environmental science , flood myth , wastewater , hydrology (agriculture) , ecotoxicology , environmental engineering , environmental chemistry , toxicology , biology , geography , chemistry , toxicity , geology , geotechnical engineering , archaeology , organic chemistry
Abstract The cytogenotoxic effects of the waste water from Corumbá and of the water of the Paraguay River, where this sewer discharges, were evaluated in flood and drought seasons. Allium cepa root meristems were exposed to 20 and 72 h treatments. Mitotic index, frequency, and types of aberrant cells were compared to the control. The waste water was genotoxic to this organism. The cycle of flood and drought influenced the levels of genotoxicity observed with the river water. © 2001 John Wiley & Sons, Inc. Environ Toxicol 16: 113–116, 2001