Estudio de la contaminación por metales en sedimentos acuáticos de la Bahía de Matanzas

Química Nova

Odalys Quevedo²  Jorge Gómez²  Carmen Ramírez²  Tamara Estrada²  Carlos Moreno¹  Carolina Mendiguchía¹  Margarita Edelia Villanueva Tagle¹  Mario Simeón Pomares Alfonso¹ 

[1] ,Centro de Investigaciones del PetróleoLa Habana,Cuba

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

DOI  :  10.1590/S0100-40422012000500012

来源: SciELO

【 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】

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