Related by context. Frequent words. (Click for all words.) 53 Chornobyl 51 Chernobyl 49 Krasnoyarsk 48 Novosibirsk 47 Irkutsk 46 Soviet republic 45 soviet 45 Almaty 44 oblast 44 Soviet era 44 Soviet 43 Altai 43 Sarov 43 atomic 43 radioactive fallout 42 Tomsk 42 Nizhny Novgorod 42 Khabarovsk 42 Dushanbe 42 USSR 42 Yakutia 42 Stavropol 42 Nakhchivan 42 Saratov 42 Kalmykia 42 Chernobyl reactor 41 steppe 41 Volgograd 41 Chernobyl disaster 41 Gyumri 41 Ekaterinburg 41 Primorye 41 Perm 41 Ulyanovsk 41 Urals 41 waste repository 41 Pokhran 41 Chechen Republic 41 Ural Mountains 40 Tver 40 Ryazan 40 Kharkiv 40 Grigor 40 Lvov 40 ITAR TASS 40 Chelyabinsk 40 Kazakhstan 40 Tuva 40 Aral Sea 40 Natanz 40 Fyodor 40 Arkhangelsk 40 Kharkov 40 Dnipropetrovsk 39 Yaroslavl 39 Soviet republics 39 Rocky Flats 39 Kazakh 39 Kamchatka 39 Artsakh 39 Voronezh 39 plutonium 39 Astrakhan 39 Daghestan 39 radioactive contamination 39 Kaluga 39 Nursultan Nazarbayev 39 Crimean 39 Kiriyenko 39 Kemerovo 38 Tajik 38 Kirov 38 Aghazadeh 38 Azerbaijanis 38 Baikal 38 Soviet Union 38 Stepanakert 38 Chita 38 atomic bomb 38 Fukushima Prefecture 38 Leningrad 38 Ashgabat 38 Pripyat 38 Kaliningrad 38 Yucca Mountain 38 Novgorod 38 Anatoly 38 Kamchatka Peninsula 38 Siberia 38 atom bomb 38 nuclear 38 Belene 37 Bashkortostan 37 Karelia 37 Georgy 37 Tyumen 37 Bishkek 37 Lviv 37 radionuclides 37 Bushehr 37 Murmansk