Chemical spill assessment carried out for the Derwent River, Tasmania

James Donald, Sasha Zigic, Charles Lemckert, Trevor Gilbert, Nathan Benfer

Research output: Contribution to conference (non-published works)Paper

Abstract

Chemical spills caused by shipping incidents can have catastrophic effects on a region's environment, population and economy. For that very reason the following paper investigates hypothetical chemical spill modelling for the Derwent River, in southern Tasmania, Australia. The modelling assessed the likely movement and fate of two chemicals (sodium hydroxide and sulphuric acid) released into the estuary under range of seasonal conditions. The modelling study was carried out in stages. Firstly, a validated ocean/coastal model (HYDROMAP) was used to generate tidal current data for the study site. Secondly, the ambient tidal and locally measured wind data were used as input into an advanced 3-dimensional chemical model, CHEMMAP, to assess the likely fate of each chemical and the toxicity to nearby marine organisms. The modelling results indicated that there would be a build up of higher concentrations along the coastline surrounding the Hobart and Risdon Ports, as a result of the sluggish tidal currents unable to readily disperse the chemicals. Consequently, with these regions predicted to be exposed to pollutant levels above the recommended guidelines for healthy waterways, there is potential for adverse effects on known protected spotted handfish and sea grass habitats.

Original languageEnglish
Pages322-328
Number of pages7
Publication statusPublished - 2009
Externally publishedYes
Event19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009 - Wellington, New Zealand
Duration: 16 Sep 200918 Sep 2009

Conference

Conference19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009
CountryNew Zealand
CityWellington
Period16/09/0918/09/09

Fingerprint

Hazardous materials spills
Rivers
Estuaries
Freight transportation
Toxicity
Sodium
Acids

Cite this

Donald, J., Zigic, S., Lemckert, C., Gilbert, T., & Benfer, N. (2009). Chemical spill assessment carried out for the Derwent River, Tasmania. 322-328. Paper presented at 19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009, Wellington, New Zealand.
Donald, James ; Zigic, Sasha ; Lemckert, Charles ; Gilbert, Trevor ; Benfer, Nathan. / Chemical spill assessment carried out for the Derwent River, Tasmania. Paper presented at 19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009, Wellington, New Zealand.7 p.
@conference{78b5d9ed700f4431babb81f53d27eae3,
title = "Chemical spill assessment carried out for the Derwent River, Tasmania",
abstract = "Chemical spills caused by shipping incidents can have catastrophic effects on a region's environment, population and economy. For that very reason the following paper investigates hypothetical chemical spill modelling for the Derwent River, in southern Tasmania, Australia. The modelling assessed the likely movement and fate of two chemicals (sodium hydroxide and sulphuric acid) released into the estuary under range of seasonal conditions. The modelling study was carried out in stages. Firstly, a validated ocean/coastal model (HYDROMAP) was used to generate tidal current data for the study site. Secondly, the ambient tidal and locally measured wind data were used as input into an advanced 3-dimensional chemical model, CHEMMAP, to assess the likely fate of each chemical and the toxicity to nearby marine organisms. The modelling results indicated that there would be a build up of higher concentrations along the coastline surrounding the Hobart and Risdon Ports, as a result of the sluggish tidal currents unable to readily disperse the chemicals. Consequently, with these regions predicted to be exposed to pollutant levels above the recommended guidelines for healthy waterways, there is potential for adverse effects on known protected spotted handfish and sea grass habitats.",
author = "James Donald and Sasha Zigic and Charles Lemckert and Trevor Gilbert and Nathan Benfer",
year = "2009",
language = "English",
pages = "322--328",
note = "19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009 ; Conference date: 16-09-2009 Through 18-09-2009",

}

Donald, J, Zigic, S, Lemckert, C, Gilbert, T & Benfer, N 2009, 'Chemical spill assessment carried out for the Derwent River, Tasmania' Paper presented at 19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009, Wellington, New Zealand, 16/09/09 - 18/09/09, pp. 322-328.

Chemical spill assessment carried out for the Derwent River, Tasmania. / Donald, James; Zigic, Sasha; Lemckert, Charles; Gilbert, Trevor; Benfer, Nathan.

2009. 322-328 Paper presented at 19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009, Wellington, New Zealand.

Research output: Contribution to conference (non-published works)Paper

TY - CONF

T1 - Chemical spill assessment carried out for the Derwent River, Tasmania

AU - Donald, James

AU - Zigic, Sasha

AU - Lemckert, Charles

AU - Gilbert, Trevor

AU - Benfer, Nathan

PY - 2009

Y1 - 2009

N2 - Chemical spills caused by shipping incidents can have catastrophic effects on a region's environment, population and economy. For that very reason the following paper investigates hypothetical chemical spill modelling for the Derwent River, in southern Tasmania, Australia. The modelling assessed the likely movement and fate of two chemicals (sodium hydroxide and sulphuric acid) released into the estuary under range of seasonal conditions. The modelling study was carried out in stages. Firstly, a validated ocean/coastal model (HYDROMAP) was used to generate tidal current data for the study site. Secondly, the ambient tidal and locally measured wind data were used as input into an advanced 3-dimensional chemical model, CHEMMAP, to assess the likely fate of each chemical and the toxicity to nearby marine organisms. The modelling results indicated that there would be a build up of higher concentrations along the coastline surrounding the Hobart and Risdon Ports, as a result of the sluggish tidal currents unable to readily disperse the chemicals. Consequently, with these regions predicted to be exposed to pollutant levels above the recommended guidelines for healthy waterways, there is potential for adverse effects on known protected spotted handfish and sea grass habitats.

AB - Chemical spills caused by shipping incidents can have catastrophic effects on a region's environment, population and economy. For that very reason the following paper investigates hypothetical chemical spill modelling for the Derwent River, in southern Tasmania, Australia. The modelling assessed the likely movement and fate of two chemicals (sodium hydroxide and sulphuric acid) released into the estuary under range of seasonal conditions. The modelling study was carried out in stages. Firstly, a validated ocean/coastal model (HYDROMAP) was used to generate tidal current data for the study site. Secondly, the ambient tidal and locally measured wind data were used as input into an advanced 3-dimensional chemical model, CHEMMAP, to assess the likely fate of each chemical and the toxicity to nearby marine organisms. The modelling results indicated that there would be a build up of higher concentrations along the coastline surrounding the Hobart and Risdon Ports, as a result of the sluggish tidal currents unable to readily disperse the chemicals. Consequently, with these regions predicted to be exposed to pollutant levels above the recommended guidelines for healthy waterways, there is potential for adverse effects on known protected spotted handfish and sea grass habitats.

UR - http://www.scopus.com/inward/record.url?scp=84874127234&partnerID=8YFLogxK

M3 - Paper

SP - 322

EP - 328

ER -

Donald J, Zigic S, Lemckert C, Gilbert T, Benfer N. Chemical spill assessment carried out for the Derwent River, Tasmania. 2009. Paper presented at 19th Australasian Coastal and Ocean Engineering Conference 2009, COASTS 2009 and the 12th Australasian Port and Harbour Conference 2009, PORTS 2009, Wellington, New Zealand.