Scientists have identified dangerous radon gas as a hidden risk for lung cancer in parts of Ghana. This invisible, radioactive gas seeps from the ground. Prolonged breathing of radon can increase the risk of lung cancer. This is true even for people who do not smoke.
Dr. Irene Opoku-Ntim, a senior research scientist at the Ghana Atomic Energy Commission, explained this concern. She stated that while dust and smoke are known pollutants, radon presents a silent danger. "There's also another hidden risk that is radon," she said. "Which is giving people lung cancer beyond smoking and the other pollutants that we know out there." Radon can enter homes through cracks and poorly ventilated spaces. Once trapped inside, it can be inhaled over time without immediate detection.
The World Health Organisation (WHO) recommends action if indoor radon levels exceed 100 becquerels per cubic metre. Levels above this threshold pose a health risk. Researchers in Ghana have created a preliminary radon map. This map shows areas with high radon concentrations. These high-radon areas often correlate with locations experiencing earthquakes. Specific research has focused on areas like Weija, Kasoa, and McCarthy Hill. These places lie along geological fault lines. Radon levels are elevated in these zones due to this correlation with seismic activity.
Scientists offer practical advice to reduce radon exposure. "If you test the soil and the levels are high, we will advise you on how to build," Dr. Opoku-Ntim noted. Using polyethylene sheeting during foundation casting can help. This method can reduce radon's impact. Sealing any cracks in homes is also crucial to prevent gas entry. Greater public awareness and testing are key steps for families. This will help them protect themselves from this pervasive, unseen pollutant.