Miljøstråling

Miljøstråling, often translated as environmental radiation, refers to the naturally occurring radioactive materials present in the Earth's environment. This radiation originates from several sources, including cosmic rays from outer space and terrestrial radiation from radioactive isotopes in the Earth's crust, such as uranium, thorium, and potassium. Everyday exposure to environmental radiation is a normal part of life.

The levels of miljøstråling can vary significantly depending on geographical location. Areas with higher concentrations of radioactive minerals in the soil and rock will generally have higher background radiation levels. Altitude also plays a role, as cosmic ray intensity increases at higher elevations. Indoor environments can also contribute to overall exposure due to the presence of building materials that may contain naturally occurring radioactive elements, or radon gas that can accumulate.

While the term "radiation" can sometimes evoke concern, it's important to distinguish between different types and levels of exposure. Miljøstråling is generally considered low-level and has been a constant factor throughout human evolution. However, understanding its sources and variations helps in assessing potential health impacts and in regulatory contexts concerning radiation safety.