(a) No person shall discharge or cause to be discharged into the atmosphere from any new source of process equipment or fuel-burning equipment, approved for installation after the effective date of this Air Pollution Code (Ordinance 221-70, passed July 19, 1971), emission of any air contaminant which is darker in shade or density than that designated as No. 1 on the Ringelmann Chart or of such opacity as to obscure an observer's view to a degree equal to or greater than that designated as No. 1 on the Ringelmann Chart for smoke.
(b) No person shall discharge or cause to be discharged into the atmosphere from existing sources of process equipment or fuel-burning equipment or open fire approved in accordance with Section 1530.28, emission of any air contaminant which is darker in shade or density than that designated as No. 1 on the Ringelmann Chart for smoke.
(c) No person shall discharge or cause to be discharged into the atmosphere from any refuse-burning equipment emission of any air contaminant which is darker in shade or density than that designated as No. 1 on the Ringelmann Chart or of such opacity as to obscure an observer's view to a degree equal to or greater than that designated as No. 1 on the Ringelmann Chart for smoke.
(Ord. 221-70. Passed 7-19-71.)