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.
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.
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|Item Type:||Journal Article|
|Keywords:||Pollution index, Nemerow Pollution Index, bioavailability assessment, heavy metals, sediment contamination, modified pollution index|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > Schools > School of Earth, Environmental & Biological Sciences
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:||12 May 2016 02:08|
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