[Dust prevention in Belgian coal mines. Situation at the beginning of 1974].

The present communication gives a general view of the methods of dust control in the Belgian coal mines at the beginning of 1974. The statistical data received from the mines are presented in tabular form. The length and the output of coal faces treated by the classical methods of pre-spraying of the wall, wet cutting, water infusion and wet pneumatic picks, are given separately; in some cases two or more of these techniques are used together on the same coal face. The number of stone drivages in which different methods of dust control are used, are also given.