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<p>This study examines temporal fluctuations in indoor radon (Rn-222) concentrations within a representative residential building in Strahoninec near Čakovec, Northern Croatia, constructed in 1960. Continuous radon monitoring was performed over four months, encompassing both heating (cold) and non-heating (warm) seasons. During the cold season, basement radon concentrations exceeded 1000&#xa0;Bqm<sup>−3</sup>, while increased ventilation during warmer months reduced concentrations to acceptable levels. The results demonstrate a clear relationship between indoor air quality and meteorological conditions. These findings emphasise the importance of renovating older housing units to enhance both mechanical and natural ventilation, thereby mitigating public health risks in similar geological and architectural settings.</p>

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Indoor air quality in residential building: effects of radon concentration

  • 期刊论文

  • 发表日期：

    2026年4月27日

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  • Anita Ptiček Siročić,
  • Davor Stanko,
  • Stell Tuksar

摘要

This study examines temporal fluctuations in indoor radon (Rn-222) concentrations within a representative residential building in Strahoninec near Čakovec, Northern Croatia, constructed in 1960. Continuous radon monitoring was performed over four months, encompassing both heating (cold) and non-heating (warm) seasons. During the cold season, basement radon concentrations exceeded 1000 Bqm−3, while increased ventilation during warmer months reduced concentrations to acceptable levels. The results demonstrate a clear relationship between indoor air quality and meteorological conditions. These findings emphasise the importance of renovating older housing units to enhance both mechanical and natural ventilation, thereby mitigating public health risks in similar geological and architectural settings.