The most recent data on fertiliser sales indicate that the usage of phosphorus chemical fertiliser in the year ended on 30 September 1998 was 50,000 tonnes, compared with an average annual usage of some 62,000 tonnes during the early to mid-1990s. This reduction of 20 per cent in phosphorus chemical fertiliser use although less than earlier estimates, is substantial by any standard and reflects, inter alia, the wide range of measures which have been taken as part of my Department's strategy to reduce phosphorus inputs to waters from all sectors, including agriculture.
The Local Government (Water Pollution) Act, 1997 (Water Quality Standards for Phosphorus) Regulations, 1998, which I made in July this year provide clearly formulated targets for reducing phosphorus levels in rivers and lakes within a specified timeframe. The targets are to be achieved, in general, over a ten year timeframe. The setting of water quality standards for phosphorus represents a key response by Ireland to EU Commission concerns about implementation of EU Directive 76/464 in relation to the protection of water against pollution caused by certain dangerous substances. The Commission has recognised for some time the predominant role which phosphorus plays in terms of water quality in Ireland. The phosphorus regulations underpin the comprehensive strategy which is designed to tackle all sources of phosphorus as detailed in Managing Ireland's Rivers and Lakes — A catchment-Based Strategy against Eutrophication.
A central feature of the strategy is the development of catchment-based initiatives which seek to integrate the energy and resources of all relevant interests under the overall direction of local authorities. Initiatives have been launched in respect of Lough Derg, Lough Ree, Lough Leane and the Rivers Liffey, Boyne, Suir and Barrow. Projected total investment in these catchments in respect of sewage infrastructure and monitoring and management systems is £130 million.
