Air pollution is global

Air pollution is a major environmental health problem affecting everyone in developed and developing countries alike. It is largely and increasingly a consequence of the combustion of fossil fuels for transport, power generation and other human activities.

Outdoor air pollution remains a serious problem in cities throughout the world, particularly in the megacities of developing countries and it is estimated that a quarter of the world population is exposed to unhealthy concentrations of air pollutants. Children are particularly at risk due to the immaturity of their respiratory organ systems.

Exposure to air pollutants is largely beyond the control of individuals and requires action by public authorities at the national, regional and even international levels.

The Convention on Long-range Transboundary Air Pollution, often abbreviated as CLRTAPexternal link, opens in new window, is intended to protect the human environment against air pollution and to gradually reduce and prevent air pollution, including long-range transboundary air pollution.

Updated: 2011-06-10
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