Zoning regulations and use districts as herein set forth are approved and established. The Zoning Map which accompanies this chapter is hereby declared to be a part hereof, and all notations, references, etc., shown thereon shall be as much a part of this chapter as if fully described herein. No building or land shall be used and no building shall be erected or structurally altered except in conformity with this chapter. No building or land shall be used for any trade, industry or purpose that is noxious or offensive by reason of emission of odor, dust, smoke, gas fumes, noise, etc., or that is detrimental to the health, safety, morals or general welfare of the community.