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Air quality analysis in Moscow
February 1990. USSR. Moscow. Senior technician G. Yu. Krasnov during a demonstration of the filter after a 24-hour pass of city atmospheric air. The exact date of the photo is unknown. Viktor Velikzhanin/TASS
| Location: | USSR, Moscow |
| Photo: | №123174 |
| Date of shooting: | 02.01.1990 |
| Authors: | |