All authorities shall create and maintain an environment conducive to the good health, safety, morals, welfare and comfort of authority tenants. Persons whose conduct and behavior create effects and influences adverse and detrimental to the project and persons residing therein, interfere with and prevent the achievement of the objectives of the Public Housing Law. In order to effectuate the policy hereinabove set forth, to protect the property of the authority and to facilitate proper administration by the authority of its projects, the standard of desirabilityhereinafter set forth (see section 1627-7.2 of this Part) shall be followed by authorities in approving eligibility for admission or continued occupancy.