940 resultados para Environmental assessment - São Lourenço da Serra (SP)


Relevância:

50.00% 50.00%

Publicador:

Resumo:

This study aimed to evaluate the environmental quality of the marine portion of Xixová-Japuí State Park (XJSP), an urban marine protected area, which is influenced by multiple contamination sources, by using ecotoxicological and geochemical analyses. Sediments were predominantly sandy, with low CaCO3 and organic matter contents, and presented contamination by metals (Cd,Cu,Zn). Acute toxicity was detected in three tested samples, and copepod exposed to sediments from four stations exhibited lower fecundities, despite the absence of significant effects. Contamination and toxicity seemed to be associated, suggesting that the environment is degraded and presents risks to the biota. Whole sediment TIE indicated ammonia as a main responsible for toxicity, suggesting sewage is a main contributor to sediment degradation. As external contamination sources seem to be negatively influencing the sediment quality, the park conservation objectives are not being fully reached, demanding actions to mitigate impacts. © 2013 Elsevier Ltd.

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Pós-graduação em Educação - IBRC

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Pós-graduação em Geociências e Meio Ambiente - IGCE

Relevância:

50.00% 50.00%

Publicador:

Resumo:

Pós-graduação em Microbiologia - IBILCE