Definitions
Electromagnetic radiation refers to the propagation of electromagnetic waves, including visible light, radio waves, microwaves, infrared, and ultraviolet. It is a form of energy transfer that, in most cases, does not have enough energy to ionize molecules or atoms.
Ionizing radiation refers to radiation that can impart sufficient energy to molecules or atoms to cause ionization, that is, to release electrons or other ions from originally electrically neutral atoms or molecules, forming charged particles. Ionizing radiation primarily includes alpha particles, beta particles, X-rays, and gamma rays; these have enough energy to dislodge electrons from atoms or molecules.
In short, electromagnetic radiation is a broader category that includes many types of electromagnetic waves, while ionizing radiation is a subset with sufficiently high energy to cause ionization.
Mitigation Measures for Electromagnetic Radiation
To reduce human exposure to electromagnetic radiation, consider the following measures:
- Reduce exposure: Minimize prolonged time spent near strong electromagnetic sources, such as high-voltage power lines, radar equipment, and microwave ovens.
- Increase distance: Maintain an appropriate distance from radiation sources. Radiation intensity decreases with increasing distance.
- Shielding and protection: In specific environments or work settings, use shielding materials, protective garments, or equipment to reduce exposure to electromagnetic fields.
- Use electronic devices responsibly: Limit usage time and frequency, maintain good posture, and avoid prolonged close contact with computers and mobile phones.
- Choose low-emission products: Select low-emission devices and appliances that comply with applicable standards, such as low-emission phones and household appliances.
- Healthy lifestyle: Maintain a balanced diet, regular exercise, and adequate sleep to support overall health and recovery mechanisms.
These measures can be selected and applied according to actual circumstances and needs. If there are specific concerns, consult a qualified organization or specialist.