25. (Replaced, O.C. 501-2011)Concentration: No mill, distillery, brewery, powder milk plant, fertilizer mixing plant, concrete plant, vitreous enamel, earthenware, and ceramic products plant, polyvinyl chloride production or processing plant or wood processing plant must emit particulate matter into the atmosphere with a concentration higher than 50 mg per cubic metre, under standard conditions.
This standard applies also to emissions coming from any transfer of bulk material except wood, any storage in confined environment, any digging other than the sinking of a supply water well, any welding operation metal works in indoor sandblasting and to any process for the preparation, concentration, agglomeration or drying of ore or ore concentrate, as well as to the related handling operations done in a plant for the preparation, concentration, agglomeration or drying of metallic ores, except for the process of aluminium hydrate calcining.
R.R.Q., 1981, c. Q-2, r. 20, s. 25; O.C. 501-2011, s. 215.