Spatial and temporal variations of trace element distribution in soils and street dust of an industrial town in NW Spain: 15 years of study

Ordóñez, Almudena and Álvarez, R. and Miguel García, Eduardo de and Charlesworth, Susanne (2015). Spatial and temporal variations of trace element distribution in soils and street dust of an industrial town in NW Spain: 15 years of study. "Science of the total environment", v. 524-25 ; pp. 93-103. ISSN 0048-9697. https://doi.org/10.1016/j.scitotenv.2015.04.024.

Description

Title: Spatial and temporal variations of trace element distribution in soils and street dust of an industrial town in NW Spain: 15 years of study
Author/s:
  • Ordóñez, Almudena
  • Álvarez, R.
  • Miguel García, Eduardo de
  • Charlesworth, Susanne
Item Type: Article
Título de Revista/Publicación: Science of the total environment
Date: 15 August 2015
ISSN: 0048-9697
Volume: 524-25
Subjects:
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Energía y Combustibles
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Extensive spatial and temporal surveys, over 15 years, have been conducted in soil in urban parks and street dusts in one of the most polluted cities in western Europe, Avilés (NW Spain). The first survey was carried out in 1996, and since then monitoring has been undertaken every five years. Whilst the sampling site is a relatively small town, industrial activities (mainly the steel industry and Zn and Al metallurgy) and other less significant urban sources, such as traffic, strongly affect the load of heavy metals in the urban aerosol. Elemental tracers have been used to characterise the influence of these sources on the composition of soil and dust. Although PM10 has decreased over these years as a result of environmental measures undertaken in the city, some of the “industrial” elements still remain in concentrations of concern for example, up to 4.6% and 0.5% of Zn in dust and soil, respectively. Spatial trends in metals such as Zn and Cd clearly reflect sources from the processing industries. The concentrations of these elements across Europe have reduced over time, however the most recent results from Avilés revealed an upward trend in concentration for Zn, Cd, Hg and As. A risk assessment of the soil highlighted As as an element of concern since its cancer risk in adults was more than double the value above which regulatory agencies deem it to be unacceptable. If children were considered to be the receptors, then the risk nearly doubles from this element.

More information

Item ID: 35001
DC Identifier: http://oa.upm.es/35001/
OAI Identifier: oai:oa.upm.es:35001
DOI: 10.1016/j.scitotenv.2015.04.024
Official URL: http://www.sciencedirect.com/science/article/pii/S004896971500460X
Deposited by: Memoria Investigacion
Deposited on: 29 Apr 2015 08:37
Last Modified: 29 Apr 2015 08:37
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