Traduction de «Dépôt d'azote » (Français → Anglais) :

Ecosystems are also damaged by (1) the deposition of the acidifying substances – nitrogen oxides, sulphur dioxide and ammonia – which lead to loss of flora and fauna; (2) excess nutrient nitrogen in the form of ammonia and nitrogen oxides can disrupt plant communities, leach into freshwaters leading in each case to a loss of biodiversity (called “eutrophication”); and (3) ground level ozone that results in physical damage and reduced growth of agricultural crops, forests and plants.

The critical load of nutrient nitrogen is the maximum deposition of nitrogen not causing eutrophication of ecosystems.

Ammonia and other nitrogen deposition (resulting from emissions from agriculture, traffic and industry) causes the unwanted enrichment of soils and subsequent decline of biodiversity of forests and of high nature value pastures.

(16) Sea transport is a significant contributor to emissions of sulphur dioxide and nitrogen oxides and also to concentrations and depositions of air pollutants in the Community.

Meeting those objectives is expected to result in a reduction of soil eutrophication to such an extent that the Community area with depositions of nutrient nitrogen in excess of the critical loads will be reduced by about 30% compared with the situation in 1990.

No later than 31 December 2003 the Commission shall submit to the European Parliament and the Council a report based on the experience acquired in the application of this Directive and, in particular, on the results of the most recent scientific research concerning the effects on human health and ecosystems of exposure to sulphur dioxide, nitrogen dioxide and oxides of nitrogen, different fractions of particulate matter and lead, and on technological developments including the progress achieved in methods of measuring and otherwise assessing concentrations of particulate matter in ambient air and the deposition of particulate matter and ...[+++]lead on surfaces.