All uses of land, buildings and structures or industrial processes that may be noxious or injurious by reason of the production or emission of dust, smoke, refuse matter, odor, gas, fumes, noise, vibration or similar substances or conditions; provided, however, that any such uses may be permitted if approved by the Zoning Hearing Board and subject to such conditions, restrictions and safeguards as may be deemed necessary by said Board for the purpose of protecting the health, safety and morals and the general welfare of the community.