Festival Pyrotechnic Safety & Blast Perimeter Planner

5.0+ psi: Severe Lung Trauma / Lethal

2.3 psi: Eardrum Rupture Threshold

1.0 psi: Personnel Knockdown

0.5 psi: Window Glass Shatter

NFPA 1123 Standoff: Minimum Safe Clearance

Standoff Compliance NON-COMPLIANT

Actual Spectator Dist.

22.0 m

NFPA 1123 Required

85.3 m

TNT Equivalent Mass

12.5 kg

Peak Barrier Overpressure

4.8 psi

Estimated Crowd Casualties

Lethal / Severe Trauma

Injuries (Concussive/Burn)

Calculated from Kingery-Bulmash blast overpressure integrals over active crowd density clusters (2.5 persons/m²). Matches patron saint festival incident empirical metrics.

Pyrotechnic & Site Parameters

Bulk Storage Cache 25 kg

Mortar Shell Caliber 4 in (102 mm)

Crowd Packing Density 2.5 p/m²

Install Sandbag Revetment Barrier (-45% Blast Vector) Include 15 km/h Wind Debris / Fallout Drift