Group of tributaries (% of the total water inflow)

The average annual water flow, %

Periods between chemical runoff observation runs, years

Selenga (50%), Upper Angara (13.6%), Bargusin (6.6%)

~70

3 - 5

Snezhnaya (2.6%), Turka (2.5%), Tiya (1.9%)

~7

5 - 7

Tompuda (1.5%), Kika (1.4%), Khara-Murin (1.4%)

~4

7 - 10

Others (<1% each one)

<20

10 - 12