No use shall be permitted, and no process, equipment or material shall be employed which is found by the planning commission to be objectionable to persons residing or working in the vicinity by reason of odor, insect nuisance, fumes, dust, smoke, cinders, dirt, refuse, water-carried wastes, noise, vibration, illumination, glare, unsightliness, or heavy truck traffic or to involve any hazard of fire or explosion.