What can we learn from high background radiation area (HBRA) studies in three Asian countries: India, China and Indonesia? Radiological aspects in various HBRAs.

Radiation is a pervasive natural phenomenon that has been present on earth since its inception. However, exposure to high background radiation levels can pose significant health risks to individuals living in affected areas. In recent years, several studies have been conducted in high background radiation areas (HBRAs), including high radon concentration areas, to understand the radiological aspects and the lessons learned of radiation exposure. The purpose of this article is to provide a comprehensive review of radiological hazards and lessons learned from studies in high-background radiation areas in some countries of Asia (India, China and Indonesia). In this article, we will explore the hazards associated with radiation exposure from terrestrial radiation and additionally radon inhalation, the different studies conducted in HBRA and the lessons learned from these studies. Ultimately, this article aims to provide a better understanding of the radiological aspects of HBRAs and to identify the key lessons learned from previous studies to prevent future health risks. Likewise, research conducted in different high-background radiation areas in some countries of Asia has provided valuable insights into the radiological aspects of these areas and their potential impact on human health.