69. (Replaced, O.C. 501-2011)Asbestos fibres: Any crushing, drying, drilling and dry rock storage and the processing of ore used in a mine or in an asbestos processing plant and any new process used for processing asbestos must not emit into the atmosphere more than 2 asbestos fibres per cubic centimetre of air.
For the purposes of this section, only asbestos fibres of 5 µm or more in length with a length to width ratio equal to or greater than 3 to 1 are calculated.
This section applies from 1 December 1980, to existing processes used for processing asbestos.
R.R.Q., 1981, c. Q-2, r. 20, s. 69; O.C. 501-2011, s. 215.