TOXICITY EVALUATION OF SEDIMENTS FROM THE LERMA RIVER UPPER COURSE, MEXICO
The aim of this study was to evaluate the toxicity of sediments in the upper course of the Lerma River (UCLR), in the State of Mexico by means of Microtox® test using the basic solid phase test protocol. The surface sediment samples were collected in 23 sites distributed following the main stream fl...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/52368 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/RICA.2018.34.01.10 |
| Access Level: | acceso abierto |
| Palabra clave: | microtox® water pollution contaminación en agua |
| Sumario: | The aim of this study was to evaluate the toxicity of sediments in the upper course of the Lerma River (UCLR), in the State of Mexico by means of Microtox® test using the basic solid phase test protocol. The surface sediment samples were collected in 23 sites distributed following the main stream flow of the river: 12 on the river and 11 on its tributaries for two sampling campaigns in a one year period. Half maximal effective concentration (EC50) in Vibrio fischeri varied in the river sediment from 139 mg/L to 3588 mg/L and for the tributaries it varied between 108 mg/L to 16436 mg/L. In general, sediments of the UCLR can be classified as extremely toxics which show the impact of anthropogenic contributions that come from urban and industrial untreated discharges. |
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