Acid deposition to exceed "critical loads" into next century

Despite substantial reductions in acid emissions, large areas of Britain will continue to receive acid inputs sufficient to cause ecological damage to 2005 and beyond, research funded by the Department of the Environment (DoE) has shown.1

Critical loads are the levels of acid deposition which ecosystems can tolerate in the long term without suffering adverse effects. The DoE's Critical Loads Advisory Group, co-ordinated by the Institute of Terrestrial Ecology, has been assembling data to calculate critical loads across the UK.

The results have been presented as maps which show areas where acid inputs presently exceed critical loads (ENDS Report 185, pp 8-9). The latest map

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