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Protocole à la Convention de 1979 sur la pollution atmosphérique transfrontière à longue distance, relatif à la réduction de l'acidification, de l'eutrophisation et de l'ozone troposphérique
environ., UN	Gothenburg Protocol; 1999 Gothenburg Protocol to Abate Acidification, Eutrophication and Ground-level Ozone; Protocol to Abate Acidification, Eutrophication and Ground-level Ozone; Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution to abate Acidification, Eutrophication and Ground-Level Ozone