How blast injuries cause trauma

Source: Armed Forces Radiobiology Research Institute's Medical Effects of Ionizing Radiation Course on CD-ROM (1999)

Physical injuries due to flying or collapsing buildings/debris: missile injury, crush injury
Direct blast overpressure injuries
- Injury to ear drum: 5 psi
- Injury to lung: 15 psi
- Injury fatal (LD50): 50 psi
Indirect blast wind-related injury