Story perspectives

Study: Los Alamos Plutonium Leak Could Kill 1,000, Cost $150B

7/11/2026

Summary

Story summary

A study using 2022 wind-precipitation data simulated 8,760 leak scenarios, finding a plutonium release at Los Alamos could cause 1,000 deaths, above the DOE’s estimate of nine.
Researchers estimated that releasing over one kilogram could cause 3,200 cancers, 1,000 deaths, and $150 billion in remediation.
National Nuclear Security Administration (NNSA) said PF-4 has redundant safety systems, noting that the ventilation upgrade recommended by the Defense Nuclear Facilities Safety Board remains unfunded.

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Story summary

A study using 2022 wind-precipitation data simulated 8,760 leak scenarios, finding a plutonium release at Los Alamos could cause 1,000 deaths, above the DOE’s estimate of nine.
Researchers estimated that releasing over one kilogram could cause 3,200 cancers, 1,000 deaths, and $150 billion in remediation.
National Nuclear Security Administration (NNSA) said PF-4 has redundant safety systems, noting that the ventilation upgrade recommended by the Defense Nuclear Facilities Safety Board remains unfunded.