The Depth and Gas Dilemma
نویسندگان
چکیده
During the last decade, the recreational diving community demonstrated a renewed interest in deep scuba diving. In spite of instructional agency decree, increasing numbers of divers are answering the call of the deep. Mixtures of helium, nitrogen, and oxygen were used to extend scuba diving depth beyond 800 feet. This paper explores individual motivations, physiological responses, and diver responsibility associated with diving to depths beyond 130 feet. Human nature inspires individuals to explore the unknown and achieve the impossible. The diver has the right to confront the environmental, physiological, and psychological limits of depth. Unfortunately, today's educational programs do not address the true nature and limiting factors of breathing gases at high pressures. Although most recreational divers learn of nitrogen narcosis during deep diving specialty training, the potential problems associated with carbon dioxide and oxygen are seldom addressed. The roles of nitrogen-carbon dioxide synergism and elevated partial pressure of oxygen pose potential risks in deep air diving. Individuals who choose to challenge the depths of our aquatic environment and extend beyond conventional limits must recognize their responsibilities to families, friends, and themselves.
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