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Table 1 Pressure change and lung volume with depth

From: Underwater and Hyperbaric Medicine as a Branch of Occupational and Environmental Medicine

Depth Depth Absolute pressure Lung volume
(fsw) (m) (ata) (%)
0 0 1 100
33 10 2 50
66 20 3 33
99 30 4 25
132 40 5 20
165 50 6 16.7
  1. fsw (feet sea water), ata (atmospheres absolute pressure).