| biomonitoring hospital effluents by the allium cepa l. test. | hospital effluents are serious problems in developing countries like brazil, and when not treated adequately, can cause mutagenic effects on live organisms. biomonitors, like allium cepa l., which is one of the most used plant species when monitoring effluent genotoxicity, have been used to alert the world population about environmental contamination and genotoxic chemical emissions. the allium cepa test was used to evaluate the genotoxicity of a hospital effluent in santa maria, rio grande do s ... | 2009 | 19224103 |
| mutagenic potential of water from pelotas creek in rio grande do sul, brazil. | water resource degradation is one of mankind's greatest worries, as it causes direct and indirect damage to the associated biota. we initiated a water monitoring study in pelotas creek in 2003 in order to assess the mutagenic effect of the creek's waters. allium cepa cells exposed to water samples and a chronically exposed macrophyte were analyzed, through evaluation of the mitotic index, mitotic anomalies, interphase anomalies, and total anomalies. five points were chosen along the lower course ... | 2009 | 19731216 |
| ecotoxicological and genotoxic assessment of hospital laundry wastewaters. | the aim of the present study was to assess the ecotoxicity and genotoxicity of hospital laundry wastewaters generated from a regional hospital located in rio pardo valley in the state of rio grande do sul, brazil. physicochemical, microbiological, ecotoxicological, and genotoxic analyses were performed, and the results indicate that some parameters were not in accordance with the limit concentrations established by brazilian and international guidelines for urban wastewaters. daphnia magna (ec50 ... | 2015 | 25135422 |