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in: Research

Eutrophication From Agricultural Sources: Phosphorus Concentration And Flow

Final Report - ERTDI Report 40 - Doody et al , May 2006

Year: 2006

Investigates processes controlling phosphorus (P) loss in overland flow, to identify, describe and evaluate mechanisms responsible for this observed increase in dissolved P concentration with an increase in overland flow rate.

Impact Assessment Of Highway Drainage On Surface Water Quality

Synthesis Report - ERTDI Report 49 - Bruen et al , January 2006

Year: 2006

Assesses the environmental impacts of road run-off including a review of existing practice in road drainage design and maintenance for rural dual carriageways and motorways in Ireland and the assessment of any environmental impacts of such run-off.

Evaluation Of The Use Of The Sodium Dominance Index As A Potential Measure Of Acid Sensitivity

Synthesis Report - ERTDI Report 50 - Cruikshanks et al , January 2006

Year: 2006

Evaluates the efficacy of the SDI approach to site designation under Irish conditions. The water chemistry of 257 sites across Ireland were examined during base flow. A further 65 sites were sampled at base and elevated flow and more detailed hydrological events were monitored at a smaller number of sites.

Nutrient Levels And The Zebra Mussel Population In Lough Key - Final Report

Final Report (2000-MS-5-M1) - Lucy et al , May 2005

Year: 2005

This study aims to quantify the total number and biomass of zebra mussels and assess changes to the population during the course of the study. Relevant water parameters and phytoplankton samples were analysed; direct ecological changes were also noted during the project.

Water Framework Directive: Identification And Ranking Of Nature Conservation Designated Areas, Where The Status Of Water Is An Important Factor

Final Report - ERTDI Report 24 - Ó Riain et al , May 2005

Year: 2005

The development of a methodology for identifying water-dependent habitats and hence protected areas with such habitats. It recorded these sites in digital form within a combined database and mapping system and recorded the water-dependent habitats and the species they contain.

Eutrophication From Agricultural Sources: Small Plot Study On The Impact Of Grazing Animals On Nutrient Losses To Water

Final Report - ERTDI Report 41 - Kurz et al , May 2005

Year: 2005

Project measuring the impact of cattle on soil physical properties relevant to the hydrological characteristics of a site, and assessing whether their presence is likely to influence the quality of the overland flow produced at a site.

Eutrophication From Agricultural Sources: Phosphorus Chemistry Of Mineral And Peat Soils In Ireland

ERTDI Report 38 - Final Report - Daly et al , May 2005

Year: 2005

An examination of the impact of soil chemical properties on P sorption and desorption, so that a risk assessment of P loss from soil types could be developed using identifiable soil chemical characteristics.

Nutrient Levels And The Zebra Mussel Population In Lough Key - Final Report

Final Report (2000-MS-5-M1) - Lucy et al , January 2005

Year: 2005

This study aims to quantify the total number and biomass of zebra mussels and assess changes to the population during the course of the study. Relevant water parameters and phytoplankton samples were analysed; direct ecological changes were also noted during the project.

An Investigation Into The Performance Of Subsoils And Stratified Sand Filters For The Treatment Of Wastewater From On-Site Systems

Synthesis Report - ERTDI Report 27 - Gill et al , January 2005

Year: 2005

The results from four separate field trials at separate sites covering a range of different subsoil types, whereby two sites were discharging septic tank effluent into conventional percolation areas and the other two were discharging secondary treated effluent from a peat filter into similar percolation areas.

Water Framework Directive – The Application Of Mathematical Models As Decision-Support Tools (2002-W-DS-11) Final Report

Final Report (2002-W-DS/11-M1)- Irvine et al , January 2005

Year: 2005

Identifies and reviews many situations where mathematical modelling can be a useful tool to assist in the understanding of hydrological and chemical transport and processes that occur in catchments, and the ecological response to anthropogenic alterations that affect them.

Water Framework Directive: Characterisation Of Reference Conditions And Testing Of Typology Of Rivers

Final Report - ERTDI Report 31 - Kelly-Quinn et al , January 2005

Year: 2005

A survey of 50 sites previously classified as high quality by the EPA, to determine whether they were of high ecological status (and thus could be used as reference conditions) and to use these spatial reference sites to develop the river typology for the Water Framework Directive.

Endocrine Disruptors In The Irish Aquatic Environment - Final Report

Final Report (2000-MS-2-M2)- Tarrant et al , January 2005

Year: 2005

A study that asks whether Irish rivers contain estrogenic compounds. If so, at what concentrations? Are these levels likely to pose a threat to aquatic ecosystems, particularly wild fish? Is there a risk to drinking water supplies?

Endocrine Disruptors In The Irish Aquatic Environment - Final Report

Final Report (2000-MS-2-M2)- Tarrant et al , January 2005

Year: 2005

A study that asks whether Irish rivers contain estrogenic compounds. If so, at what concentrations? Are these levels likely to pose a threat to aquatic ecosystems, particularly wild fish? Is there a risk to drinking water supplies?

Eutrophication From Agricultural Sources: A Comparison Of SWAT, HSPF And SHETRAN/GOPC Phosphorus Models For Three Irish Catchments Final Report

Final Report (2000-LS-2.2.2-M2) - Nasr et al , January 2005

Year: 2005

Report on the use of modelling non-point phosphorus loss from rural catchments in terms of the Water Framework Directive (WFD) objectives. The study focuses on physically based catchment-scale models which to date have not been applied to model phosphorus losses in Ireland.

Water Framework Directive: Identification And Ranking Of Nature Conservation Designated Areas, Where The Status Of Water Is An Important Factor

Final Report - ERTDI Report 24 - Ó Riain et al , January 2005

Year: 2005

The development of a methodology for identifying water-dependent habitats and hence protected areas with such habitats. It recorded these sites in digital form within a combined database and mapping system and recorded the water-dependent habitats and the species they contain.

Water Framework Directive: Development Of A Methodology For The Characterisation Of Unpolluted Groundwater

Final Report (2002-W-DS/7-M1) - Buss et al , January 2004

Year: 2004

The principal aim of this project was to develop a methodology for the derivation of the natural background quality for Irish groundwater bodies (it was not the intention to determine the composition of pristine groundwater bodies). International groundwater characterisation methodologies were also reviewed.

An Investigation Into The Performance Of Subsoils And Stratified Sand Filters For The Treatment Of Wastewater From On-site System - Literature Review

Literature Review for project 2000-MS-15-M1 - Gill et al , January 2004

Year: 2004

Review of literature

Eutrophication From Agriculture Sources: Seasonal Patterns & Effects of Phosphorus

Final Report - ERTDI Report 13 - Jennings et al , May 2003

Year: 2003

Study of phosphate discharges to water bodies, as part of the large-scale study

Eutrophication From Agricultural Sources: Environmental Soil Phosphorus Test

Final Report - ERTDI Report 14 - K. Daly & A. Casey, May 2003

Year: 2003

This project on soil P testing questions conventional sample depth, sample pre-treatment, choice of extractant and extract ratios against a background of dissolved reactive P (DRP) and suspended solids (SS) concentrations monitored from the same sample sites.

Review Of Monitoring And Research To Meet The Needs Of The EU Water Framework Directive

Final Report - ERTDI Report 1 - Irvine et al , May 2002

Year: 2002

Desk study to review monitoring and research requirements for implementing the Water Framework Directive, and the state of preparation of Ireland within the timescale and milestones prescribed.

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