Labile copper and zinc fractions under different salinity conditions in a shipyard area in the patos lagoon estuary, south of Brazil

Química Nova

Luiza Dy Fonseca Costa¹  Maria Regina De Oliveira Casartelli¹  Mônica Wallner-kersanach¹ 

[1] ,Universidade Federal do Rio Grande Instituto de Oceanografia Rio Grande RS ,Brasil

关键词: labile metals;    DGT;    suspended particulate matter;   

DOI  :  10.1590/S0100-40422013000800002

来源: SciELO

【 摘 要 】

Copper and zinc are common elements in paint residues and can be toxic to estuarine organisms. This study aims to determine the labile dissolved and labile particulate fractions (LPFs) of copper and zinc in the estuarine waters of a shipyard in southern Brazil under different salinity levels and in different seasons. The labile dissolved fraction was determined using the diffusive gradient in thin-film (DGT) technique. The variations in DGT-Cu (0.22-1.05 µg L-1), DGT-Zn (0.54-18.39 µg L-1), LPF-Cu (1.22-3.77 µg g-1), and LPF-Zn (4.29-19.12 µg g-1) concentration were related to changes in their physico-chemical parameters and as a result of boat maintenance activities.

【 授权许可】

CC BY-NC   
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