How Safe is the Environmental Electromagnetic Radiation?

(2014)
Method

Dosimetry:

Purpose: Quantifies how external EMFs induce internal electric fields/currents in tissues.

Tools: Computational modeling (e.g., FEM simulations) + physical phantoms.

Output: Basis for safetyguidelines (e.g., SAR values).

Source

EMFs

Result

Sources of Electromagnetic Fields (EMFs)

1-Natural Sources:

  • Terrestrial (Earth’s magnetic field, atmospheric electricity)
  • Extraterrestrial (solar radiation, cosmic rays)

2-Man-Made Sources:

Power generation, transmission, and appliances

Mobile phones & telecommunications

Interaction with the Human Body

  • Incident fields couple with the body, inducing:
  • Internal electric & magnetic fields
  • Currents in tissues

Tissue Conductivity & Current Distribution

Induced current distribution depends on tissue conductivity

Higher conductivity (e.g., muscles, nerves) → higher current density

Non-uniform exposure across organs