INEDES   24797
INSTITUTO DE ECOLOGIA Y DESARROLLO SUSTENTABLE
Unidad Ejecutora - UE
artículos
Título:
Water pollution monitoring of the Lujan River (Argentina): Chemical analyses and hepatic biomarkers in Lithobates catesbeianus tadpoles
Autor/es:
OSSANA, NATALIA ALEJANDRA; SALIBIÁN, ALFREDO; EISSA, BETTINA LORENA; CASTAÑÉ, PATRICIA MÓNICA
Revista:
International Journal of Environment and Health
Editorial:
Inderscience Enterprises Ltd.
Referencias:
Año: 2017 vol. 8 p. 150 - 163
ISSN:
1743-4955
Resumen:
The toxicological water quality of the Lujan River (Argentina) was monitored during one year seasonal samplings. Water samples were collected at two points and their toxicological profiles were compared: S1 (reference site), located downstream of a major city and S2, located further downstream, beyond a joint urban sewage and industrial discharge point. A number of abiotic parameters were determined and three water quality indices (WQIs) calculated on the samples. Laboratory toxicity bioassays were conducted exposing Lithobates catesbeianus larvae to samples; a third group of animals were exposed to tap water (controls). Hepatic biomarkers were determined: catalase (CAT), glutathione-S-transferase (GST) and superoxide dismutase (SOD) activities, lipid peroxidation (LPO) and GSH content; CF and HSI were calculated. The scores of the WQIs corresponded to a high pollution condition at both sampling points. ANOVA showed significant differences between sampling sites and controls mainly in CAT activity, GSH content and GST in autumn.