41. (Replaced, O.C. 501-2011)Opacity: The concentration of contaminants discharged into the atmosphere by the pot lines of a new aluminium smelter must not exceed 10% of opacity according to the method of measure provided for in paragraph a of section 96. This standard is 20&% for contaminants discharged into the atmosphere by an anode plant used by a new aluminium smelter.
Section 10 applies from 1 December 1983 to existing aluminium smelters.
R.R.Q., 1981, c. Q-2, r. 20, s. 41; O.C. 501-2011, s. 215.