Study of metal contamination in aquatic sediments of the Bay of Matanzas

Química Nova

Gómez, Jorge¹  Pomares Alfonso, Mario Simeón¹  Moreno, Carlos¹  Quevedo, Odalys¹  Ramírez, Carmen¹  Universidad de Cádiz, Puerto Real, España¹  Villanueva Tagle, Margarita Edelia¹  Estrada, Tamara¹  Centro de Investigaciones del Petróleo, La Habana, Cuba¹  Universidad de La Habana, La Habana, Cuba¹  Mendiguchía, Carolina¹ 

关键词: metal pollution;    marine sediments;    digestion and extraction methods.;   

DOI  :  10.1590/S0100-40422012000500012

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Surface sediments of the Bay of Matanzas (Cuba) were studied to assess its environmental quality by using several criteria (metal content index, pollution load index and sediment quality guidelines). Two partial digestion sediment procedures and a modified BCR sequential extraction were used. The concentrations of metals were measured by atomic spectroscopy methods. The founded contents of Cu (2,4-27,9 mg kg-1), Zn (2,5-55,5 mg kg-1) and Ni (8,8-99,2 mg kg-1) were below those reported by other authors. The results obtained suggested that the most polluted sites were 3, 5, and 6. The sequential extraction procedure showed that most of the studied metals were associated to the more stable fractions.

【 授权许可】

Unknown