Dynamic Modelling of Selenium Biogeochemistry in an Estuarine Lake - Lake Macquarie, NSW Carroll, BI en_US Peters, G en_US Barford, JP en_US Wegenaar, K en_US Maher, WA en_US Reible, DD en_US 2021-11-25T13:23:41Z 2021-11-25T13:23:41Z 1996 en_US
dc.description.abstract The mobility and toxicity of selenium (Se) is a strong function of oxidation state, which in turn is affected by Eh and pH. Elevated levels of Se in fish from Lake Macquarie, NSW are potentially linked to reported high levels of Se in the sediment. Therefore, an understanding of the biogeochemical cycling of Se between the various environmental compartments in the Lake is important in predicting the formation and release of mobile and potentially toxic Se oxyanions to the water column. A computer-based dynamic model, developed in SPEEDUP, is described. The model simulates the biogeochemical cycling of Se in an estuarine ecosystem between the sediment and the water column. Model parameters were obtained from the literature and from data specific to Lake Macquarie. Transport of Se between and accumulation of Se within the various compartments is predicted. Selenium is expected to accumulate in volatile, organic and selenate forms in the water column, and to predominate as selenide in the sediment. The model is designed to allow future expansion into different environmental compartments, including air, biota and plants. en_US
dc.identifier.isbn 0858256495 en_US
dc.language English
dc.language.iso EN en_US
dc.publisher Institution of Engineers, Australia en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Dynamic Modelling of Selenium Biogeochemistry in an Estuarine Lake - Lake Macquarie, NSW en_US
dc.type Conference Paper en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofconferenceLocation Hobart, Australia en_US
unsw.relation.ispartofconferenceName 23rd Hydrology and Water Resources Symposium en_US
unsw.relation.ispartofconferenceProceedingsTitle Hydrology and Water Resources Symposium 1996: Water and the Environment en_US
unsw.relation.ispartofconferenceYear 1996 en_US
unsw.relation.ispartofpagefrompageto 677-678 en_US
unsw.relation.originalPublicationAffiliation Carroll, BI en_US
unsw.relation.originalPublicationAffiliation Peters, G, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Barford, JP en_US
unsw.relation.originalPublicationAffiliation Wegenaar, K en_US
unsw.relation.originalPublicationAffiliation Maher, WA en_US
unsw.relation.originalPublicationAffiliation Reible, DD en_US School of Civil and Environmental Engineering *
Resource type