Mo. Rev. Stat. § 79.370

The board of aldermen shall have power, by ordinance, to secure the general health of the inhabitants of the city by any measure to regulate, suppress and abate slaughterhouses, slaughtering animals, stockyards, soap and other factories, pig pens, cow stables, and other stables and dairies, and to remove the same, and to regulate or prevent the carrying on of any business which may be dangerous or detrimental to the public health, or the manufacturing or rendering of articles obnoxious to the health of the inhabitants; and to pass ordinances for the prevention of nuisances and their abatement.