Ecotoxicological and genotoxic assessment of hospital laundry wastewaters.
Arch Environ Contam Toxicol
; 68(1): 64-73, 2015 Jan.
Article
en En
| MEDLINE
| ID: mdl-25135422
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 2.01%) and Danio rerio (LC50 29.25%) acute toxicity was detected, and sublethal effects were identified in Lactuca sativa (IC25 12.50%) and Allium cepa (IC25 51.25%). Cytotoxicity was observed at the five wastewater concentrations used yielding statistically significant differences (p < 0.05) in the meristematic cells of A. cepa compared with the negative control. The results obtained here warn about the necessity to develop treatment methods that can mitigate the environmental impacts caused by the ecotoxicity and genotoxicity of hospital laundry wastewaters.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Monitoreo del Ambiente
/
Aguas Residuales
/
Servicio de Lavandería en Hospital
Tipo de estudio:
Guideline
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Arch Environ Contam Toxicol
Año:
2015
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Estados Unidos