LABILE COPPER AND ZINC FRACTIONS UNDER DIFFERENT SALINITY CONDITIONS IN A SHIPYARD AREA IN THE PATOS LAGOON ESTUARY, SOUTH OF BRAZIL

被引：9

作者：

Fonseca Costa, Luiza Dy ^{[1
]}

de Oliveira Casartelli, Maria Regina ^{[1
]}

Wallner-Kersanach, Monica ^{[1
]}

机构：

[1] Univ Fed Rio Grande, Inst Oceanog, Lab Hidroquim, BR-96203900 Rio Grande, RS, Brazil

来源：

QUIMICA NOVA | 2013年 / 36卷 / 08期

关键词：

labile metals; DGT; suspended particulate matter; DISSOLVED ORGANIC-CARBON; IN-SITU MEASUREMENT; DIFFUSIVE GRADIENTS; TRACE-METALS; THIN-FILMS; SPECIATION; CONTAMINATION; RELEASE; MARINAS; WATERS;

D O I：

10.1590/S0100-40422013000800002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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 mu g L-1), DGT-Zn (0.54-18.39 mu g L-1), LPF-Cu (1.22-3.77 mu g g(-1)), and LPF-Zn (4.29-19.12 mu g g(-1)) concentration were related to changes in their physico-chemical parameters and as a result of boat maintenance activities.

引用

页码：1089 / 1095

页数：7

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