| Autor: |
Díaz Rizo O; Instituto Superior de Tecnologías y Ciencias Aplicadas, 6163, 10600, La Habana, Cuba. odrizo@instec.cu, Olivares Reumont S, Viguri Fuente J, Díaz Arado O, López Pino N, D'Alessandro Rodríguez K, de la Rosa Medero D, Gelen Rudnikas A, Arencibia Carballo G |
| Jazyk: |
angličtina |
| Zdroj: |
Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2010 Jan; Vol. 84 (1), pp. 136-40. Date of Electronic Publication: 2009 Nov 14. |
| DOI: |
10.1007/s00128-009-9898-y |
| Abstrakt: |
Levels of iron, copper, zinc and lead were determined in sediments and soft tissue of the oyster Crassostrea rhizophorae collected from Guacanayabo Gulf, Cuba. Metal-to-Iron ratio in sediments shows an average enrichment for Cu (5,1), Pb (11,7) and Zn (1,3) in the last 20 years. Metal concentrations found in soft tissue of C. rhizophorae are site dependent. The average biota-sediment accumulation factors (BSAFs) obtained for Fe, Cu and Pb are less than unity in all cases, indicating that only a little fraction of Cu and Pb in the sediments is bioavailable, independently of their enrichments. Zinc has an average BSAF value of 2.4 and may represent a serious impact in the area. The concentrations of zinc and copper in some of the oysters are above typical public health recommended limits. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
Full text from SpringerLink