Traduction de «élimination des oxydes d'azote » (Français → Anglais) :

There are a range of compositions that can be denoted as MONi or MONij, where i and j are integers representing the percentage of Nitric Oxide in the mixture (e.g., MON3 contains 3 % Nitric Oxide, MON25 25 % Nitric Oxide. An upper limit is MON40, 40 % by weight).

(9) Whereas reductions in emission limits applicable from the year 2000 corresponding to abatements of 30 % in emissions of carbon monoxide, total hydrocarbons, NOx and particulate matter have been identified by the Auto-oil programme as key measures to achieving satisfactory medium-term air quality; whereas a reduction of 30 % in exhaust smoke opacity over that measured on current engine types and complementing Council Directive 72/306/EEC(11) will contribute to the reduction of particulate matter; whereas additional reductions in emission limits applicable from 2005 of 30 % carbon monoxide, total hydrocarbons and NOx and 80 % in part ...[+++]iculates will greatly contribute to medium-term air quality benefits; whereas these reductions will take into account the effect on emissions of new test cycles that better represent the driving patterns experienced by in-service vehicles; whereas the additional NOx limit applicable from 2008 will result in a further 43 % reduction in the emission limit for this pollutant; whereas, no later than the end of 2002, the Commission is to consider the available technology with a view to confirming the mandatory NOx standard for 2008 in a report to the European Parliament and the Council, accompanied, if necessary, by appropriate proposals;

Pursuant to that requirement, Directive 1999/30/EC contains limit values * for concentrations of sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter and lead and alert thresholds * for concentrations of sulphur dioxide and nitrogen dioxide in ambient air.

To maintain or improve the quality of ambient air, the European Union has established limit values for concentrations of sulphur dioxide, nitrogen dioxide and nitrogen oxides, particulate matter and lead, as well as alert thresholds for concentrations of sulphur dioxide and nitrogen oxide, in ambient air.

EUROPA - EU law and publications - EUR-Lex - EUR-Lex - l28098 - EN - Sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter and lead in ambient air

1. The Parties shall, as soon as possible and as a first step, take effective measures to control and/or reduce their national annual emissions of nitrogen oxides or their transboundary fluxes so that these, at the latest by 31 December 1994, do not exceed their national annual emissions of nitrogen oxides or transboundary fluxes of such emissions for the calendar year 1987 or any previous year to be specified upon signature of, or accession to, the Protocol, provided that in addition, with respect to any party specifying such a previous year, its national average annual transboundary fluxes or n ...[+++]ational average annual emissions of nitrogen oxides for the period from 1 January 1987 to 1 January 1996 do not exceed its transboundary fluxes or national emissions for the calendar year 1987.