Estimation of world tailings dams by the database used.
Database
Scope
Number world
Number Brazil
Number United States
Factor
Estimated number world
BANM
Brazil
N/A
769
N/A
2.97
5,754
GRIDA
World
1938
259
263
3.23
6,251
USACE
United States
N/A
N/A
1,233
4.69
9,085
Factor refers to Equation (1), Equation (3), and Equation (5), respectively. Estimated number world refers to Equation (2), Equation (4), and Equation (6), respectively.