(a) Dense Smoke Prohibited. No person shall operate any stove, furnace, boiler or combustion apparatus of any kind, nor shall any person owning any stove, furnace, boiler or combustion apparatus of any kind permit the same to be operated in a manner so as to emit dense smoke and/or the ingredients thereof. However, the emission of dense smoke and/or the ingredients thereof for a period of twenty minutes in any one hour, once in every twenty-four hours, when a new fire is being kindled, shall not constitute a violation of this section. Furthermore, the emission of dense smoke and/or the ingredients thereof for a period aggregating eight minutes in any one hour and not exceeding two minutes of continuous emission shall not be deemed a violation of this section.
(1975 Code Sec. 9.81)
(b) Smoke Measurement. For the purpose of defining the term "dense smoke," which shall constitute a prohibited density hereunder, the standards established by the Ringelmann Smoke Chart, 1955 Edition, as amended or revised, are hereby adopted. Such standards are published by the Department of Interior, Bureau of Mines (IC 7718), with an accompanying publication written by Ralph Rudolph Kudlich and revised by L. R. Durdick, as published by the Bureau of Mines, Publication - Distribution Section, 4800 Forbes Street, Pittsburgh, Pennsylvania, in accordance with the Department of Interior Public Notice Number 84932. Smoke of a density equal to or greater than the density described as number two on the Ringelmann Smoke Chart shall be considered and held to be "dense smoke," as the term is used in subsection (a) hereof.
(1975 Code Sec. 9.82)