What is Radon?


Radon is a naturally occurring, invisible, and odorless radioactive gas that can enter and build up in homes and buildings, presenting significant health risks


Naturally Occurring

Radon gas, released from the decay of uranium in soil and rock, is a naturally occurring yet hazardous element

Invisible and Odorless

Undetectable by human senses, radon remains a hidden hazard in homes and buildings

Health Hazard

Exposure to elevated radon levels significantly raises the risk of developing lung cancer

Health Risks of Radon Exposure


Prolonged exposure to radon is a major health concern, primarily due to its strong link to lung cancer, even in non-smokers


Lung Cancer Risk

Radon is the leading cause of lung cancer among non-smokers worldwide, and the second leading cause among smokers

Silent but Deadly

Without proper testing, radon's presence and its harmful effects can go unnoticed for years

Cumulative Effect

The risk of cancer increases with the level of radon and the length of exposure; even low levels can be hazardous

Lack of Radon Regulations in Japan


Japan currently lacks specific regulations for radon levels in homes and public buildings, leading to a gap in awareness and safety measures against this invisible health hazard


No Standard Limits

In Japan, unlike some countries, there are no established legal limits for radon levels in residential or public spaces

Unregulated Exposure

Many individuals may unknowingly live or work in environments with high radon levels

Need for Awareness

The absence of official guidelines highlights the need for proactive radon testing and mitigation

Populations at Risk in Japan


In Japan, the risk of radon exposure is notably high for both the general population and US military personnel living off-base, primarily due to the absence of regulatory limits and a general lack of awareness about the dangers


General Japanese Population

Many residential areas in Japan are built on soil with natural uranium deposits, increasing the risk of radon accumulation in homes

US Military Living Off-Base

Personnel and their families living off-base may reside in housing with unknown radon levels, as these are not monitored by military authorities

Construction Standards

Different construction and ventilation practices result in varying indoor radon levels, making certain homes more susceptible

How Radon Enters and Accumulates in Buildings


Radon gas can infiltrate buildings through various entry points, often accumulating to dangerous levels without proper mitigation strategies


Entry Through Foundations

Radon can seep into buildings from the ground, entering through cracks in floors, walls, and foundations

Internal Accumulation

Radon levels can build up indoors, especially in basements and ground floors, often surpassing safe health thresholds

Weather Influence

Rain and snow can also impact soil conditions, potentially increasing radon gas release into the building's foundation

Measurement and Mitigation of Radon


Inicia specializes in both the precise measurement and effective mitigation of radon, providing comprehensive solutions to address this invisible health risk


Accurate Measurement

Inicia employs real-time measuring devices and long-term devices for precise radon level assessment, laying the groundwork for effective mitigation strategies

Expert Mitigation Solutions

Based on measurement results, Inicia offers tailored radon mitigation solutions, from simple fixes to complex system installations

Commitment to Safety

Inicia's approach prioritizes long-term safety and health, ensuring that homes and workplaces are not just compliant, but truly radon-safe

Resources and Further Reading


Discover more about radon's impacts and stay informed through these carefully selected resources


WHO's Insight on Radon

Dive into the World Health Organization's (WHO) extensive fact sheet on radon and its impact on health. This resource provides a detailed overview of radon, its contribution to lung cancer, and effective strategies for its mitigation in homes and workplaces.

Read More

EPA’s Guide on Radon Risks

The U.S. Environmental Protection Agency (EPA) offers an in-depth exploration of the health risks associated with radon exposure. This guide covers radon’s impact on lung cancer risk, presenting crucial data and advice for mitigating this invisible threat in homes and workplaces.

Read More

WHO Handbook on Radon

Download the World Health Organizations's (WHO) Handbook on Indoor Radon, a key resource for understanding this public health challenge. This handbook covers radon exposure, its link to lung cancer, and effective strategies for indoor radon management.

Download Page


Risk for U.S. Military in Japan

Discover key insights into radon exposure risks for U.S. military families living off-base in Japan, detailed in Inicia's report. It highlights the need for radon safety measures in non-military housing.

Read Report

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