United Nations. Economic Commission for Europe

Subjects

Congresses, Environmental aspects, Air, Pollution, Transboundary pollution, ACIDIFICATION, AIR POLLUTANTS, Effect of air pollution on, Factory and trade waste, Forest conservation, Law and legislation, Luchtverontreiniging, NITROGEN OXIDES, Sulfur, TRANSBOUNDARY AIR POLLUTION, Trees, AIR POLLUTION, AIR QUALITY MANAGEMENT, Air quality management, Altstadtsanierung, Aquatic animals, Armenia (republic), economic conditions, Asia, statistics, Aspect de l'environnement, Bossen

Places

Europe, Eastern Europe, Armenia (Republic), Asie centrale, Caucase, Caucasus, Central Asia, Eurasia, Europe de l'Est

Time

1991-