Q-2, r. 4.1 - Clean Air Regulation

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146. A cement plant must have a system that continuously measures and records the opacity of the gases emitted into the atmosphere by the kiln and the clinker cooler, or their particle concentration.
This section does not apply if the clinker cooler has a fabric filter gas scrubber, provided that the scrubber has a continuous leak or malfunction detection device.
O.C. 501-2011, s. 146.