What Was Never Studied: Health Surveillance, Radon, and the Population That Was Relocated Before the Questions Were Answered

A parallel institutional failure runs alongside the Centralia record. This report examines it directly.

The six-part Centralia Files series examined how a Pennsylvania coal borough was dismantled through cost-benefit logic, jurisdictional deflection, service withdrawal, and eminent domain. It documented how the relocation of a community was framed as assistance, how the remaining residents were reframed as irrational, and how the place itself was eventually absorbed into spectacle.

What the series did not fully examine was a parallel failure that runs alongside the institutional record: the failure to formally study what the fire, and decades of exposure to its byproducts, actually did to the health of the people who lived above it.

This special report examines that failure directly.

The Science: What a Burning Coal Seam Produces

Coal is not chemically inert. It contains carbon, sulfur, and a range of mineral impurities including arsenic, cadmium, nickel, and silica. When it burns, it releases those compounds as gases, particulates, and aerosols. A coal seam fire burning through an interconnected network of mine workings beneath an occupied town is not a controlled combustion event. It is an open system, venting through surface fissures, basement penetrations, and ground cracks into the air that residents breathe.

The primary documented acute hazards of the Centralia fire were carbon monoxide and sulfurous gases. Carbon monoxide is odorless, colorless, and lethal at sufficient concentrations. It was monitored in Centralia homes throughout the 1970s and into the 1980s, and elevated readings were documented and recorded by state and federal agencies. Residents described symptoms consistent with chronic low-level carbon monoxide exposure: headaches, fatigue, respiratory irritation, and cognitive effects. David DeKok’s reporting documented these conditions in detail, and they are part of the agency record.

What is less well documented in the Centralia-specific literature, but well established in the broader scientific record, is a second hazard pathway: radon.

Radon is a naturally occurring radioactive gas produced by the decay of radium, which is itself a decay product of uranium and thorium. Both are present, in varying concentrations, in coal and in the rock formations associated with coal seams. As coal burns and the surrounding geology is heated and disturbed, radon gas is mobilized — freed from the matrix of rock and coal where it would otherwise decay in place — and migrates upward through fissures and mine passages toward the surface.

The health consequence of radon exposure is lung cancer. This is not disputed in the scientific literature. The EPA, the National Cancer Institute, and the World Health Organization all classify radon as a Group A human carcinogen — the highest classification, reserved for substances with definitive evidence of human carcinogenicity. Radon is the second leading cause of lung cancer in the United States after smoking, responsible for an estimated 21,000 deaths annually. — The Centralia Files Special Report

The mechanism is specific. Radon itself is chemically inert and passes through the lungs largely without effect. Its decay products — primarily polonium-218 and polonium-214 — are not inert. They emit alpha particles, attach to airborne dust, and are inhaled and deposited in the bronchial epithelium. Alpha particle radiation causes DNA damage at the cellular level, initiating the carcinogenic process. The dose-response relationship is linear: more exposure, more risk, with no established threshold below which exposure is safe.

What this means for Centralia is mechanistically clear. A burning coal seam beneath an occupied town, venting through a disturbed subsurface into residential structures with imperfect sealing, created conditions in which radon mobilization and accumulation were plausible and potentially significant. The fire heated the ground, disrupted the geology, and created pathways for gas migration that normal soil conditions would not have provided. Whether radon was in fact present at harmful levels in Centralia homes is a question the available record does not fully answer. That is the problem.

What Was Documented: The Hershey Finding and Its Limits

The most specific documented statement about the health of Centralia’s residents relative to surrounding communities comes from Hershey Medical Center, which confirmed that residents of Centralia suffered a greater incidence of health problems than those living in neighboring towns. This finding appears in the historical literature on Centralia and has been cited in subsequent accounts of the borough’s decline.

Who Had Authority and What They Did

Three federal and state agencies had the mandate, authority, or both to conduct formal health surveillance of Centralia’s affected population. The record of each warrants examination.

The Radon Gap: What the Record Can and Cannot Support

The claim that has circulated in public discussion — that coal isotope degradation produced a radon-driven cancer cluster in the Centralia area — is worth evaluating on the terms Clutch Justice applies to all claims: what does the record support, what does it not support, and where is the boundary?

What Should Have Happened and What Could Still

A formal health study of Centralia’s former resident population was feasible at the time of relocation and remains feasible now, in diminished form, for those still living and willing to participate.

What such a study would have required at relocation: a systematic health history of all relocated residents, including documentation of specific conditions, duration of residence, proximity to identified high-exposure areas, and occupational histories that might confound exposure attribution. Biological sampling where appropriate. Longitudinal follow-up. A comparison population. A lead agency with the authority and funding to conduct the work. ATSDR, EPA, and Pennsylvania DOH each had jurisdictional claims on some portion of that mandate. None, in the publicly available record, exercised it comprehensively.

What remains possible now: the former residents of Centralia are an aging population. Some have died. The window for prospective health study narrows with each year. What could still be done is a retrospective mortality analysis — comparing cause-of-death records for former Centralia residents against appropriate comparison populations — and a systematic review of whatever health monitoring records were generated during the fire period. That work would not answer every question. It would answer some of them, and it would establish formally whether the health differential Hershey Medical Center identified in the 1970s and 1980s persisted into elevated mortality from conditions most consistent with the documented exposures.

That study has not been done. Its absence is not a neutral fact. It is a decision, distributed across three agencies and several decades, that the health outcomes of Centralia’s former residents did not rise to the level of formal investigation.

The Surveillance Gap as Structural Pattern

The failure to study Centralia’s health outcomes is not an isolated oversight. It is consistent with a well-documented pattern in environmental public health: communities that are relocated or displaced in response to contamination are less likely to receive formal long-term health follow-up than communities that remain in place, because the institutional rationale for engagement dissolves when the population is no longer present at the site.

Once Centralia’s residents were relocated, the site became an abandoned borough above a burning mine. The monitoring that continued was environmental — ground temperature readings, gas monitoring, subsidence tracking — not epidemiological. The people had been moved. The institutional attention moved with the site, not with the people.

This pattern appears in other managed relocation contexts. Communities relocated from flood plains under FEMA buyout programs do not receive systematic health follow-up. Communities displaced from Superfund-adjacent areas are not routinely tracked for long-term health outcomes after relocation. The displacement resolves the agency’s immediate problem. The long-term health record of the displaced population is not part of the program’s design.

Centralia illustrates this pattern with the same legibility it brings to every other dimension of managed decline. The documentation is recoverable. The decision chain is visible. The gap between what was known, what was studied, and what was formally established is identifiable in the record precisely because the record exists.