Do tiles have radiation?

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Yes, tiles do have radiation, but their radioactivity levels are usually low and do not pose a health risk to humans. Here are some key points:

1. Sources of Radiation in Tiles: The raw materials of tiles, such as stone powder, quartz powder, feldspar powder, and zircon sand, emit a special kind of ray during the decay process, which is known as radioactivity. Additionally, additives used in tile processing, such as zirconia added to ultra-white polished tiles or uranium and potassium contained in dark glazes, also produce radiation.
2. Types of Radiation: The radiation from tiles to humans includes internal radiation and external radiation. Internal radiation mainly refers to the radiation of radon to the human body. Radon is a radioactive natural substance that is colorless and odorless, easily diffusible, soluble in water, and highly soluble in fats. External radiation mainly comes from the chemical elements contained in the raw materials, such as gamma and beta rays produced by the decay of elements like radium and thorium.
3. Radiation Safety Standards: According to the Chinese national mandatory standard “Limits of Radioactive Nuclides in Building Materials” (GB 6566), the radioactivity level of building decoration materials such as tiles is divided into three categories: A, B, and C. Generally, qualified tile products have controllable radiation within the safety range allowed by the state.
4. Impact on Humans: Although tiles have radiation, the radiation produced by qualified tiles does not harm human health. Humans are already in a natural radioactive environment, and as long as the radiation dose does not exceed the personal dose limit, radioactivity will not cause harm to the human body.
5. Purchase Advice: When purchasing tiles, you can check the radioactivity level grade marked on the tile packaging. Tiles that meet the usage standards will not harm human health.

In summary, tiles do have radiation, but as long as you choose qualified products that meet national standards, their radiation levels are safe and will not affect human health.