Development of a hybrid pollution index for heavy metals in marine and estuarine sediments

Brady, James P., Ayoko, Godwin A., Martens, Wayde N., & Goonetilleke, Ashantha (2015) Development of a hybrid pollution index for heavy metals in marine and estuarine sediments. Environmental Monitoring and Assessment, 187(5), Article:306.

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Abstract

Heavy metal pollution of sediments is a growing concern in most parts of the world, and numerous studies focussed on identifying contaminated sediments by using a range of digestion methods and pollution indices to estimate sediment contamination have been described in the literature. The current work provides a critical review of the more commonly used sediment digestion methods and identifies that weak acid digestion is more likely to provide guidance on elements that are likely to be bioavailable than other traditional methods of digestion. This work also reviews common pollution indices and identifies the Nemerow Pollution Index as the most appropriate method for establishing overall sediment quality. Consequently, a modified Pollution Index that can lead to a more reliable understanding of whole sediment quality is proposed. This modified pollution index is then tested against a number of existing studies and demonstrated to give a reliable and rapid estimate of sediment contamination and quality.

Impact and interest:

14 citations in Scopus
7 citations in Web of Science®
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36 since deposited on 07 May 2015
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ID Code: 84002
Item Type: Journal Article
Refereed: Yes
Keywords: Pollution index, Nemerow Pollution Index, bioavailability assessment, heavy metals, sediment contamination, modified pollution index
DOI: 10.1007/s10661-015-4563-x
ISSN: 1573-2959
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 Springer International Publishing Switzerland
Copyright Statement: The final publication is available at Springer via http://dx.doi.org/10.1007/s10661-015-4563-x
Deposited On: 07 May 2015 22:59
Last Modified: 25 Jun 2017 14:52

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