Determination of long-term spatial and seasonal distribution of contaminants in an urban river and estuarine system using polarographic techniques.
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|Title:||Determination of long-term spatial and seasonal distribution of contaminants in an urban river and estuarine system using polarographic techniques.||Authors:||Buggy, Conor J.||Permanent link:||http://hdl.handle.net/10197/9993||Date:||Sep-2006||Online since:||2019-04-17T08:08:02Z||Abstract:||The Tolka River and Estuary, Co. Dublin, Ireland, is a typical Irish urban river and estuarine system. It has significant metal and organometal contaminant loading. A one-month rapid sampling and analysis regime was devised to optimise riverine and estuarine sampling techniques and to determine seasonality of contaminant distribution. Over a thirty-month period contaminant concentrations within the surface sediment of the aquatic system were analysed from twenty sampling points. Six metals (Cd, Cr, Cu, Ni, Pb and Zn) and an organometal (TBT) were analysed using Differential Pulse Polarography for thirty and nineteen months respectively. Organic Matter, Suspended Particulate Matter, pH, Salinity and metal content of the water column were also analysed. This thirty-month assessment created an extensive database to determine spatial and seasonal distributions of contaminants over time and various in situ environmental and anthropogenic parameters that influence these distributions. It was found that contaminant concentrations within surface sediment are highly variable over a twelve-month period and that environmental conditions and anthropogenic sources of contaminants are the key factors affecting spatial and seasonal distributions.||Funding Details:||Environmental Protection Agency||Type of material:||Doctoral Thesis||Publisher:||DCU||Keywords:||Contaminant distribution; Differential Pulse Polarography; Environmental conditions; Anthropogenic sources of contaminants; Spatial and seasonal distributions||Other versions:||http://doras.dcu.ie/17251/||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Public Health, Physiotherapy and Sports Science Research Collection|
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