Origin, patterns and anthropogenic accumulation of potentially toxic elements (PTEs) in surface sediments of the Aviles estuary (Asturias, northern Spain)

被引：35

作者：

Sierra, C. ^{[1
]}

Boado, C. ^{[2
]}

Saavedra, A. ^{[2
]}

Ordonez, C. ^{[3
]}

Gallego, J. R. ^{[3
]}

机构：

[1] ESPOL, Fac Ciencias Tierra, Guayaquil, Ecuador

[2] Polytech Sch Mieres, Dept Min Exploitat & Prospecting, Burgos, Spain

[3] Polytech Sch Mieres, Dept Min Exploitat & Prospecting, Burgos, Spain

来源：

MARINE POLLUTION BULLETIN | 2014年 / 86卷 / 1-2期

关键词：

Particulate emissions; Sediment contamination; Multivariate analysis; Geostatistics; Enrichment factors; HEAVY-METALS; MULTIVARIATE; BAY;

D O I：

10.1016/j.marpolbul.2014.06.052

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sediment quality has been assessed within the Aviles estuary, an important industrial area in the NW of Spain. The study started with a geochemical characterization of the superficial sediments that revealed some anomalous metal(oid)s concentrations in sensitive areas such as beaches or dunes. These data were studied by means of multivariate statistical techniques and enrichment factors calculation to evaluate the correlations and geochemical origin within the different elements. A novel approach using the combination of enrichment factors with a sequential application of factor analysis, clustering and kriging was essential to identify the possible sources of pollution. The collected information suggested that Cd (strongly correlated with Zn and Pb) was the potentially toxic element most widely distributed and problematic. Furthermore, particulate emissions from Zn metallurgy, as well as dust generated by the mineral loading and stockpile activities in the port were identified as the most important sources of pollution. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：530 / 538

页数：9

共 42 条

[1] Factorial Kriging Analysis As a Tool for Explaining the Complex Spatial Distribution of Metals in Sediments [J].