In addition to the condensation of muriatic acid gas as aforesaid, the owner of every alkali work shall use the best practicable means for preventing the escape of noxious or offensive gases by the exit flue of any apparatus used in any process carried on in the work, and for preventing the discharge, whether directly or indirectly, of such gases into the atmosphere, and for rendering such gases where discharged harmless and inoffensive, subject to the qualification that, on the basis of the amount of acid gas per cubic foot, no objection shall be taken under this section by an inspector to any muriatic acid gas in the air, smoke, or gases discharged into the atmosphere by a chimney or other final outlet where the amount of such acid gas in each cubic foot of air, smoke, or gases so discharged does not exceed the amount limited by the last preceding section.

If the owner of any alkali work fails, in the opinion of the court having cognisance of the matter, to use such means, he shall be liable to a fine not exceeding in the case of the first offence twenty pounds, and in the case of every subsequent offence fifty pounds with a further sum not exceeding five pounds for every day during which any such subsequent offence has continued.