Assessment of the Toxic Potential of Sewage Sludge in the Midgut of the Diplopod Rhinocricus padbergi


Autoria(s): Perez, Danielli Giuliano; Fontanetti, Carmem Silvia
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/06/2011

Resumo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The destination of sewage sludge is a problem faced by sewage treatment plants (STPs). Many alternatives have been sought, such as the application of sewage sludge in degraded soils and in agriculture as fertilizer. However, due to the risk of contamination with pathogens and/or metals, the use of sludge should be done cautiously. By the habits that diplopods present, they have been considered good environmental indicators for soil analysis. In this study, animals from the Rhinocricus padbergi species were exposed to two sewage sludge samples from two STPs in the So Paulo State, for different periods. The midgut of the animals were removed and histologically processed and subjected to histochemical tests. It was detected the following tissular responses: clusters of haemocytes through the cells of the fat body layer, increase in the quantity of intracellular granules in the cells of the fat body layer, increase in the release of secretion vesicles of the intestinal epithelium, and intense vacuolization of the cytoplasm of epithelial cells. The results suggest the presence of toxic substances to the studied species in both sludge samples used.

Formato

437-444

Identificador

http://dx.doi.org/10.1007/s11270-010-0657-9

Water Air and Soil Pollution. Dordrecht: Springer, v. 218, n. 1-4, p. 437-444, 2011.

0049-6979

http://hdl.handle.net/11449/19888

10.1007/s11270-010-0657-9

WOS:000290724400039

Idioma(s)

eng

Publicador

Springer

Relação

Water, Air, and Soil Pollution

Direitos

closedAccess

Palavras-Chave #Histochemistry #Histopathology #Invertebrate #Millipede #Soil toxicity
Tipo

info:eu-repo/semantics/article