Q-2, r. 4.1 - Clean Air Regulation

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167. The operator of a secondary lead smelter or plant that processes, uses or remelts lead or lead compounds must, at least once a year, perform source emissions testing of the gases emitted into the atmosphere by each emission source referred to in section 164, calculate the concentration of the contaminants referred to in that section, and for that purpose, measure each of the parameters necessary for the calculation.
O.C. 501-2011, s. 167.