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International Programs

Transboundary Air Pollution

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Because air pollution does not stop at national borders, many countries are both sources and receptors for transboundary air pollution. Transboundary flows of pollutants occur between the United States and our closest neighbors, Mexico and Canada, as well as between North America and other continents. A variety of international efforts are underway to deal with the transboundary effects of air pollution.

EPA Information on Transboundary Air Pollution

Additional U.S. Government Information on Transboundary Air Pollution

International Efforts to Address Long-Range Transport of Air Pollution

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