Carbon Dioxide Effects under Conditions of Raised Environmental Pressure

摘要: Abstract : Exposure to the increased barometric pressure, such as encountered under water, affects mechanics of respiration and in particular behavior respiratory gases. Carbon dioxide plays a major role physiology high-pressure environment since breathing resistance easily leads carbon retention, has frequently been noted scuba helmet diving. Pulmonary gas exchange breathhold diving is influenced by compression decompression events, resulting reversed gradient during descent. The alveolar level can be controlled ascent from depth controlling speed which significance both buoyant ascents submarine escape. Investigations pulmonary rest exercise exposure high pressure while helium-oxygen mixtures have demonstrated existence limitations associated CO2 retention when divers are performing heavy work. In shallow habitat air using combinations normoxic nitrogen-oxygen mixtures, evidence for development slight acidosis was obtained.