§ 22.199 SMOKE.

   Emissions of smoke shall not exceed the maximum permitted smoke units as defined in § 22.011 and Ringelmann Number ratings in Table 25.

(Ord. 480B, passed 8-21-1953; Ord. 90-O-036, passed 11-8-1990; Ord. 14-O-36, passed 11-14-2014)

 

Table 25: Maximum Smoke Emissions
	During One-Hour Per 24-Hour Day*		All Other Times
	Heavy Industrial	Other	Heavy Industrial	Other
Maximum permitted smoke units *** per hour per stack	32	16	16	8
Highest Ringelmann number permitted	3**	2**	2	1
*   When blowing soot or cleaning fires **   For a maximum duration of 3 minutes ***   The number of smoke units is the product of the Ringelmann Number and the number of minutes the smoke is visible

 

(Ord. 480B, passed 8-21-1953; Ord. 90-O-036, passed 11-8-1990; Ord. 14-O-36, passed 11-14-2014)