Korkeataajuussäteilyn

Korkeataajuussäteily, also known as radio frequency (RF) radiation, refers to electromagnetic waves in the frequency range of approximately 3 kilohertz to 300 gigahertz. This spectrum includes radio waves and microwaves. These waves are a form of non-ionizing radiation, meaning they do not have enough energy to remove electrons from atoms or molecules.

Naturally occurring sources of korkeataajuussäteily include lightning and cosmic radiation. However, the majority of exposure in modern life comes from artificial sources. These include a wide range of communication technologies such as mobile phones, Wi-Fi networks, radio and television broadcasting, radar systems, and microwave ovens.

The interaction of korkeataajuussäteily with matter primarily involves heating effects. At higher intensities, this thermal effect can cause tissue damage. The human body absorbs RF energy, and this absorption rate is measured by the specific absorption rate (SAR). Regulatory bodies worldwide set limits on RF exposure to prevent harmful heating effects.

Scientific research has investigated potential non-thermal effects of korkeataajuussäteily, but a consensus on such effects remains elusive. Organizations like the World Health Organization (WHO) and national health agencies continue to monitor and evaluate the scientific evidence regarding the health impacts of RF exposure. Public understanding of korkeataajuussäteily is often influenced by widespread technological use and ongoing scientific inquiry.