<unk>  is critical in certain settings to minimize<unk> borne diseases. This is especially true for international travelers, military personnel, and anyone living in area with potentially contaminated<unk>  sources. Natural<unk>  can become contaminated through a myriad of ways including, but not limited to: organic or inorganic<unk> ial from land erosion, dissolution of minerals, decay of organic vegetation, biologic organisms that reside in soil and<unk> , industrial chemical pollutants, and microorganisms from animal or human biologic waste.
This article discuss the benefits good hygiene and adequate sanitation as well as provide ways to treat<unk>  for safe drinking.
Water purification
Poison control
Diving medicine
Blister chemical agents
Care under fire
Dialyzable drugs
Safety at sea
Dermatologic nomenclature