Chapter 43 AIR POLLUTION.
Section 43-2 GRADING OF SMOKE DENSITY.
For the purpose of grading the density of smoke under this chapter, the Ringelmann
now published and used by the United States Bureau of Mines, which is hereby made a part
hereof by reference, shall be the standard. Two (2) copies of such chart shall be deposited with
the Town Manager. Smoke shall be considered dense when it is equal to or of greater density
than No. 2 on such chart.