No person shall, either by himself, his employee or agent, or as an employee or agent of another, cause, suffer or permit to be discharged, from any source whatsoever, such quantities of fumes, gases, odors, smells, acids which cause injury, detriment, nuisance or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public or which cause or have a natural tendency to cause injury or damage to business or property.
(Prior code § 4400.3)