[18] Examples of underlying indicators are CO2, NOx and SO2 emissions, increase in built-up land, water pollution, exceedance of critical loads of pollution, etc.

(b) reduce the environmental impact of aviation, by reducing fuel consumption, CO2, NOX and other chemical pollutants and noise pollution.

Developing countries, however, face a number of local environmental problems, particularly air pollution, and many are also concerned about transboundary air pollution due to emission of SO2, NOx and heavy metals.

Following on from the work carried out under the CAFE Programme, the Commission has fixed targets for reducing certain pollutants (SO2, NOx, VOCs, ammonia and PM2.5) and is strengthening the legislative framework for combating air pollution in two ways, firstly by improving Community environmental legislation and, secondly, by taking account of concerns about air quality in related policies.

Following on from the work carried out under the CAFE Programme, the Commission has fixed targets for reducing certain pollutants (SO2, NOx, VOCs, ammonia and PM2.5) and is strengthening the legislative framework for combating air pollution in two ways, firstly by improving Community environmental legislation and, secondly, by taking account of concerns about air quality in related policies.

(1) Whereas the Community programme of policy and action in relation to the environment and sustainable development (4) recognizes as a fundamental principle that all persons should be effectively protected against recognized health risks from air pollution and that this necessitates in particular the control of emissions of nitrogen dioxide (NO2), particulates (PT) - black smoke, and other pollutants such as carbon monoxide (CO); whereas with regard to the prevention of tropospheric ozone (O3) formation and its associated health and environmental impact, the emissions of the precursors nitrogenoxides (NOx) and hydrocarbons (HC) must be ...[+++] reduced; whereas the environmental damage caused by acidification will also require reductions inter alia on the emission of NOx and HC;