No ordinance or resolution shall be passed or adopted as an emergency measure unless it shall have been introduced as such and unless it shall set forth in the final section thereof a declaration of the circumstances constituting the emergency which exists, necessitating the immediate going into effect of the ordinance or resolution in order to provide for the preservation of the public peace, property, health, safety or welfare from an immediate danger, or to provide for the usual daily operation of a department or an office of the City.
(1969 Code 3.05)