(a) The emission of dense smoke within the City from any open fire, or from the smoke stack or chimney of any building, or premises, except for the period of or periods aggregating six minutes or less in any one hour at a time when the firebox is being cleaned out or a new fire being built therein, or from the stack of any locomotive for a period in excess of one continuous minute after the locomotive is ready for service, of a density equal to or of greater density than No. 2 smoke as defined by the Ringelmann Chart, is prohibited.
(b) The emission of dense smoke in violation of subsection (a) hereof is hereby declared to be a nuisance and may be summarily abated by the Director of Public Safety-Service or by anyone whom he may duly authorize for such purpose. Such abatement may be in addition to the fine hereinafter provided. (Ord. 754-A. Passed 7-9-56.)
(c) Whoever violates this section is guilty of a misdemeanor of the first degree.