Radon Testing for Schools and Daycares in Michigan

There is a particular quality to the concern parents feel about the environments where their children spend their days. Schools and daycares are places where families extend a significant degree of trust — to the teachers, the administrators, and the physical environment itself. Most parents who think about indoor air quality in their children's school are thinking about ventilation, dust, or mold. Radon is rarely part of that conversation, and in Michigan, where no law currently requires radon testing in schools or daycare facilities, it is a concern that institutional administrators may never have formally addressed.

That gap between the risk and the institutional response deserves direct examination. Children spend six to eight hours daily in school and daycare environments — in buildings that sit on the same geology as the homes around them, with the same radon-producing processes operating beneath their foundations. The absence of a testing requirement does not make those buildings safe from radon. It simply means the question has not been asked.

The Exposure Reality in Educational Settings

The radon exposure dynamics in a school or daycare building are governed by the same physics as in a residential home. Radon rises from the soil beneath the building's foundation, enters through foundation cracks, utility penetrations, slab joints, and sump openings, and accumulates in the lower levels of the structure. A school building on a concrete slab in Kent County sits above the same Zone 1 geology as the homes in the neighborhoods surrounding it.

What distinguishes schools and daycares from homes in the radon exposure picture is the concentration of children in a single space for extended daily periods. A classroom of twenty-five children occupies the same room for six or more hours every school day. If that classroom is on the ground floor of a building with elevated radon levels, those twenty-five children are accumulating exposure simultaneously — and they will continue to accumulate it every school day for the years they spend in that building.

The cumulative exposure implications for a child who attends a school with elevated radon from kindergarten through fifth grade — six years of daily exposure during the most developmentally significant years of their respiratory development — are meaningful. As we discussed in our post on radon and children, young people face elevated risk from radon exposure relative to adults both because of their developing physiology and because of the longer time horizon over which cumulative exposure effects play out.

Michigan's Regulatory Gap for Schools

Michigan does not currently require radon testing in public or private schools. It does not require testing in licensed daycare facilities. It has no mandatory remediation standard for educational buildings where elevated radon is discovered voluntarily. This places Michigan outside the group of states that have taken formal action on school radon — including Illinois, which recommends testing every five years and requires reporting of results to the state board, Florida, which requires testing in schools in designated high-radon counties, and Delaware, which requires testing in licensed childcare facilities every five years.

At the federal level, the EPA has long recommended that all schools be tested for radon and has published specific guidance for school radon testing and mitigation. The EPA's guidance has been available for decades. The gap between federal recommendation and state-level action in Michigan means that whether a school has been tested depends entirely on whether the individual school district, building administrator, or local health department has chosen to act voluntarily.

The result is a patchwork — some Michigan school districts have tested comprehensively, others have tested selectively, and many have never tested at all. There is no publicly available comprehensive database of school radon test results in Michigan that would allow parents to know their child's school's status without asking directly.

What Federal Policy Changes Mean for Michigan Schools

A development worth noting for Michigan families is the 2024 update to HUD's radon policy requiring radon testing and mitigation for federally assisted housing. While this applies to residential housing rather than schools directly, it reflects a broader federal direction toward stronger radon requirements that may eventually extend to educational settings. The EPA has also increased its focus on school radon in recent years, providing updated guidance and funding support for state school testing programs.

For Michigan schools that receive federal Title I funding or other federal program support, the question of whether federal radon requirements may eventually attach to those funding streams is one that administrators and school boards should be monitoring. Proactive testing now — before any mandates arrive — puts schools in a position of informed action rather than reactive compliance.

Daycare Facilities: A Specific Priority

Within the educational setting category, licensed daycare facilities serving infants and toddlers deserve specific priority attention from a radon perspective. Several factors combine to make infant and toddler daycare environments particularly relevant.

Infants and toddlers spend more time at floor level than any other population — crawling, sitting, and playing directly on the floor, closer to the surface through which radon enters than any adult or older child in the same building. Radon concentrations are typically slightly higher near floor level than at breathing zone height for standing adults, meaning the effective exposure for floor-level infants may be somewhat higher than a standard measurement at mid-room height suggests.

The developmental vulnerability of infant and toddler lungs is also greater than that of older children and adults. Lung tissue in the first years of life is undergoing rapid development, and the sensitivity of developing tissue to radiation-induced cellular damage is meaningfully higher than in mature respiratory systems.

Delaware's requirement that childcare facilities test every five years and present evidence of freedom from radon hazards before licensing reflects a policy judgment that this population and this setting warrant specific protective action. Michigan has not made that judgment formally, but the underlying rationale — protecting the most vulnerable children in the settings where they are most concentrated — is compelling regardless of whether it has been codified in law.

What Parents Can Do

Parents who want to know their child's school or daycare facility's radon status have both the right to ask and, in many cases, the ability to advocate for testing if it has not been done.

The starting point is a direct inquiry to the building administrator or facilities director: has this building been tested for radon, and if so, what were the results and when was the testing conducted? Most administrators will respond to this question straightforwardly. The answer may be that testing was done years ago with acceptable results, that testing was done and elevated levels were found and addressed, that testing was done and elevated levels were found and not addressed, or that the building has never been tested.

Each of those answers informs different next steps. A building that was tested comprehensively within the past five years with acceptable results requires no immediate action. A building that has never been tested represents an information gap worth pursuing — through continued advocacy with the administration, through parent-teacher organizations, through the school board, or through contact with the county health department, which may have resources or influence to support school testing.

Parents who sit on school boards or PTO/PTA leadership committees are particularly well positioned to advance the school testing conversation within their institutions.

Bringing the EPA's school testing guidance to an administrator or board meeting, framing the request in terms of student health and liability risk management rather than as a criticism of the institution, tends to be more productive than adversarial approaches.

What School and Daycare Administrators Should Know

For administrators reading this post, the case for proactive voluntary testing is straightforward. The EPA has provided guidance, protocols, and in many cases funding support for school radon testing for decades. Testing is not technically complex or prohibitively expensive for a commercial building — the per-square-foot cost of a professional commercial radon assessment is modest, and many schools can be tested comprehensively for a cost that is negligible relative to annual operating budgets.

The liability dimension is also worth considering. An administrator who becomes aware through a parent complaint or media inquiry that their building has never been tested for a recognized carcinogen — particularly in a Zone 1 county where the geological risk is documented — is in a more difficult position than one who has proactively tested, documented the results, and addressed any elevated findings. Voluntary action before external pressure arrives is almost always the more defensible institutional position.

Elevated results, if found, are addressable. Commercial radon mitigation in school buildings follows the same principles as residential mitigation, adapted to the larger footprints, more complex HVAC systems, and specific construction types of institutional buildings. The process is manageable, the cost is definable, and the outcome — verified safe radon levels in the spaces where children spend their days — is a concrete and meaningful improvement in the health environment the institution provides.

The Broader Advocacy Opportunity

The school and daycare radon testing gap in Michigan is an area where informed parents, public health advocates, and radon professionals can work together to push for policy change that protects a large and vulnerable population. As we discussed in our post on the awareness gap around radon, the path toward legislative action in Michigan runs through public awareness, organized advocacy, and the kind of constituent pressure on legislators that only an informed public can generate.

Parents who have tested their own homes, found elevated levels, and mitigated — or who are simply aware of the radon risk in West Michigan — are natural advocates for school testing requirements. Their personal experience with radon gives them credibility and motivation that abstractions and statistics alone do not provide.

At All Michigan Mitigation, we conduct commercial radon testing for institutional buildings including schools and childcare facilities throughout West Michigan. We bring the technical expertise and institutional experience that educational building assessments require, and we understand the specific concerns and constraints that school administrators navigate.

Visit us at allmichiganmitigation.com to discuss commercial testing for a school or daycare facility, or to learn more about what a comprehensive institutional radon assessment involves.

All Michigan Mitigation is a West Michigan radon testing and mitigation company dedicated exclusively to helping homeowners understand and eliminate radon risk in their homes.