Q-2, r. 4.1 - Clean Air Regulation

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77. If the wood or wood waste used as fuel has been treated with a product containing chromium, copper or arsenic, the fuel burning equipment must have a rated power equal to or greater than 3 MW and must not emit into the atmosphere
(1)  particles in excess of 100 mg/Rm3 of dry gas in the case of existing fuel burning equipment, or 70 mg/Rm3 of dry gas in the case of new equipment; or
(2)  chromium, copper or arsenic in such manner that the contaminant concentrations in the atmosphere exceed the concentrations listed in Schedule G, using an air dispersion model in accordance with Schedule H.
O.C. 501-2011, s. 77.