What to stockpile and prepare in advance to survive a nuclear detonation or radiological event, including shelter supplies, medical items, and communication tools.
Preparing specifically for nuclear or radiological threats requires supplies beyond a standard emergency kit. Radiation is invisible, odourless, and penetrates deeply — you cannot sense it directly. Preparation focuses on shielding, early detection, internal dose reduction, and prolonged shelter capability. This guide details what to stockpile, why each item matters, and how to organise your supplies for rapid use.
A nuclear or radiological event differs from most emergencies in three key ways:
| Factor | Implication for Preparedness |
|---|---|
| Fallout arrives silently | You need a radiation source (radio, alert) to know it's coming |
| Contamination is external AND internal | Decontamination and avoiding ingestion are both critical |
| Shelter-in-place works | Staying inside a sturdy structure dramatically reduces dose |
| Duration extends beyond 24 hours | Supplies must last days, not hours |
| Medical treatment is limited | Prevention of exposure is far more effective than treatment |
Water is your most critical supply for extended shelter:
Potassium iodide protects the thyroid gland from radioactive iodine — one of the most harmful components of nuclear fallout:
Your shelter-in-place location should be enhanced with:
| Item | Purpose |
|---|---|
| Plastic sheeting (thick, heavy) | Seal windows, doors, vents |
| Duct tape | Seal plastic sheeting |
| Pre-cut plastic to window sizes | Faster sealing under time pressure |
| Draft excluders or foam strips | Seal door gaps |
| N95/FFP2 or better respirators | Reduces inhalation of contaminated particles while sealing |
Most effective shelter locations: interior rooms with no windows, below ground (basement), centre of a large building, upper floors of a high-rise (above fallout at ground level). Avoid top floors of any building and wooden structures.
To decontaminate before sheltering or after a brief outdoor exposure:
In addition to standard first aid:
The value of preparedness is zero if you cannot access your supplies under stress. Organise so that:
⚠️ The window between a nuclear detonation and arriving fallout is typically 10–15 minutes to several hours depending on distance and wind. Supplies that take 20 minutes to locate are less useful than basic supplies that can be accessed in 2 minutes.
| Category | Minimum Quantity / Notes |
|---|---|
| Water | 4 L/person/day × 14 days; sealed containers |
| Food | 14-day supply; sealed packaging |
| Potassium iodide | One adult dose per person; age-appropriate; take only on instruction |
| Sealing materials | Plastic sheeting + duct tape pre-cut to window/door sizes |
| N95/FFP2 respirators | One per person minimum |
| Radiation dosimeter | At least one per household |
| Radio (hand-crank or battery) | Charged and accessible |
| Decontamination bags | Multiple large plastic bags; soap; extra clothing |
| Medical extras | Prescription medications (14-day supply); anti-nausea; ORS |
Take Nuclear Threat Preparedness Kit with you — no internet needed when it matters most.
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