1. non-ionizing radiation:
Electromagnetic radiation: electromagnetic radiation includes radio wave radiation of TV, computer, mobile phone, microwave oven and other equipment. Long-term and high-intensity electromagnetic radiation may be related to some health problems, such as headache, sleep problems and eye discomfort.
Ultraviolet (UV) radiation: Ultraviolet rays come from the sun and are mainly divided into three types: UV-A, UV-B and UV-C. UV-B and UV-C are harmful to skin and eyes, which may lead to sunburn, skin cancer, cataract and so on.
Visible light radiation: natural light and artificial illumination usually do not cause obvious harm to human body, but looking directly at strong light sources for a long time may cause harm to eyes.
2. Ionizing radiation:
X-rays and γ-rays: These high-energy ionizing radiation are mainly used in medical and industrial applications, but long-term or excessive exposure will increase the risk of cancer.
α-rays and β-rays: These particle radiations are mainly produced by radioactive substances, which may cause harm to human tissues and cells. Radioactive substances in food and drinking water may also cause exposure.
How to reduce radiation damage;
Reduce electromagnetic radiation:
Use hands-free equipment to reduce the contact between the mobile phone and the head.
Reduce the use time of electronic equipment, especially at night.
Try to stay away from microwave ovens and areas with strong electromagnetic fields.
When using computers and other equipment, keep your distance and use radiation protection equipment.
Sun protection:
Use sunscreen, sunglasses and wide-brimmed hat in strong sunlight to reduce the damage of ultraviolet rays to skin and eyes.
Avoid prolonged exposure to the sun, especially at noon.
Controlling exposure to ionizing radiation:
In medical examination, X-ray or CT scanning is only accepted at the doctor's suggestion.
In an industrial environment, observe safety regulations and wear appropriate protective equipment.
Food safety:
Avoid eating too much food contaminated by radiation, especially food from irradiated areas.
Drinking safe water sources and regularly testing water quality.
Generally speaking, the key to reduce radiation injury is to be aware of potential radiation sources, take appropriate preventive measures, and follow safety guidelines and suggestions. For electromagnetic radiation, it is important to keep proper use and distance from the radiation source; For ionizing radiation, it is very important to follow the advice of medical professionals and safety regulations.