A New Nuclear Weapons Map Brings America’s Health Legacy Closer to Home
As eligible families seek radiation compensation, a national mapping project connects the weapons complex to the communities that helped sustain it.
A former workplace. A childhood neighborhood. The land around an abandoned mine. For families trying to understand a serious illness, the history of America’s nuclear weapons program can be deeply personal—and difficult to reconstruct.
A new digital map at NuclearImpacts.org aims to make that history easier to find. According to its creators’ October 22 announcement, the project documents nearly 4,000 sites connected to U.S. nuclear weapons across all 50 states and beyond. The announcement describes a resource that combines publicly available, unclassified government records, previous reporting and interviews with local organizations and residents.
Its arrival comes as some affected families have a renewed opportunity to seek compensation. The Radiation Exposure Compensation Act, or RECA, was reauthorized and expanded in July 2025. The Justice Department says all claims must be filed by December 31, 2027.
The map cannot determine whether someone’s illness resulted from radiation or whether a family qualifies for benefits. It can, however, offer a starting point for questions that deserve answers.
A health legacy beyond the test site
The health consequences of nuclear weapons extend beyond an explosion’s immediate reach. Following orders from Congress, U.S. government health agencies have spent years trying to reconstruct and better understand the impact of radioactive fallout from atmospheric tests traveled thousands of miles. Radioactive iodine reached pastures, entered milk and exposed people far from testing grounds. They found that childhood exposure, in certain regions, can increase thyroid cancer risk, although the scientists involved found that the cause of most individual cases of thyroid cancer is not known.
Mining left another complicated legacy. The Environmental Protection Agency, for example, identifies more than 500 abandoned uranium mines on and near the Navajo Nation, along with homes and water sources with elevated radiation levels. Closed facilities do not necessarily mean that exposure concerns have ended.
Those examples also show why a national map needs local context. A military installation, a contaminated mine and a remediated property do not present identical hazards. Understanding a particular site requires information about its operations, contaminants, cleanup status and possible exposure pathways. The map, intended as a starting point, includes links to organizations who have worked to push local, state, and federal government agencies to increase their transparency and oversight of these sites.
Secrecy makes the record harder to reconstruct
Government secrecy has complicated what is publicly known. The Energy Department’s own account of its 1993 openness initiative says the disclosures revealed that one-fifth of the nation’s nuclear weapons tests had been kept secret.
Even where records are public, they may not resolve an individual family’s questions. The National Cancer Institute describes incomplete and unreliable historical information as an obstacle to estimating personal fallout doses and associated risks.
The mapping project’s creators say they are bringing unclassified sources together with community accounts and information about assistance programs. That approach can help residents identify which records to pursue, while preserving the distinction between a community’s experience and a medical finding about an individual.
What families can check now
Under RECA’s current rules, eligibility depends on the claimant category, a covered diagnosis and specified work or presence in designated places during qualifying periods. Categories include downwinders, onsite test participants, certain uranium workers and people affected by designated Manhattan Project waste areas. Applicants do not have to prove that radiation caused their disease, but must meet the statutory criteria.
Families can begin by reviewing the official requirements and collecting medical records and documentation of residence or employment. The Justice Department provides application instructions and an electronic filing option. Different categories have different compensation provisions; appearing on the map does not establish entitlement.
Today’s production brings tomorrow’s responsibilities
The health story also reaches forward. One of the National Nuclear Security Administration’s core missions is to maintain and modernize the U.S. nuclear weapons stockpile. That mission is now being turbocharged;, NNSA leadership has emphasized the importance of modernization, with NNSA Administrator Brandon Williams saying in 2026 that “we will be defined primarily as an organization focused on weapons production.” Evaluating that mission includes understanding its consequences for workers and neighboring communities.
A 2024 Government Accountability Office review found that NNSA’s strategy for anticipated waste from maintenance and modernization was incomplete, including its treatment of future plutonium production waste.
A map cannot replace exposure research, accessible records or medical care. But it can help families locate the history behind their questions—and, where the law provides assistance, find a path toward applying for it.
