Both species probably arrived in Lake Baikal from the Arctic Ocean by swimming up the Yenisey and Angara Rivers
. This is supported by the fact that a louse (Echinophthirius horridus baicalensis) that parasitizes the Baikal seal is closely related to a species that parasitizes the seals of the northern seas.
According to the Russian State National Committee on Ecology, most of the mercury was released directly into the Angara River
and traveled several miles downstream where it now lies concentrated in the sediments of the huge Bratsk Reservoir.
The shimmering sapphire waters of the Angara river
on a sunny day contrasted sharply with the grey, grime-laden streets on a dull day.
Denikin (January 4, 1920); placed himself under Allied protection, but the Czechs turned him over to the Bolshevik authorities in Irkutsk (January 15); after a lengthy interrogation, he was executed by firing squad and his body thrown into the Angara River
(February 2, 1920).