Human life in the radiation environment 

In fact, human life is not a moment left radioactive, radioactive natural radioactivity, mainly from three aspects: 

1. Cosmic rays; 

2. Radioactive ground and buildings; 

3. Internal body radioactivity. 

Trace amounts of radioactivity does not endanger health. 

People radioactive activity 

Many human activities are inseparable from radioactivity. For example, the radiation dose that people intake air, food, water is about 0.25 mSv / year. With luminous watch 0 02 mSv per year;. Air travel 2000 km to about 0.01 mSv;. Smoke 20 cigarettes a day, with 0 5-1 mSv per year;. First X-ray examination 0 1 mSv, and so on. . 

Nuclear radiation due to the increase in dose 

Experts study estimates show that: the collective radiation dose of humanity, and 3/4 from the natural world. About 1/5 share from the medical and diagnostic, nuclear power is 1/400. Assume global life expectancy is 60 years old human, then smoke a pack of cigarettes a day will eventually PYLL seven years, and the impact of nuclear power is PYLL 24 seconds. 

For nuclear radiation contamination, radioactive contamination that is, ordinary people often noticed hazardous radioactive substances in modern scientific research in nuclear radiation nuclear plant caused by some special workshop produced only, or the effects of radioactive X-rays generated by the treatment of the hospital and caused damage, without considering the life there will be radioactive pollution. In fact, the life of a radioactive substance into the human body through a variety of ways, causing chronic damage to the body. To prevent life radioactive pollution on human health hazards, the law enforcement authorities to enhance environmental awareness promotion. Other hand, government and law enforcement departments should strengthen the management of radioactive materials, commodities easily contaminated radioactive substances to be monitored regularly. 

Note bedroom radioactive contamination 

With industrial development, often use industrial waste to make building materials, may cause some of the building materials containing radioactive substances, produced by the radioactive decay of radioactive gases and their daughter products, suspended in indoor air, radon and its daughter products emit higher energy α-rays (particles), if a man sucked into this gas that will be irradiated human lung tissue. If long been irradiated, it is easy to produce bronchitis and lung cancer and other diseases. According to foreign reports, the majority of the family room in the naturally occurring radioactive gas radon, if mixed with gas, will have fatal consequences. Radon is a risk factor for lung cancer. In addition, granite and other stone materials decorated room with board also contains a certain amount of radon, especially poor ventilation, can cause increased radioactive contamination within the room. After monitoring showed multiple indoor radon accumulation in places with poor ventilation, open bedroom window so often to promote air circulation, so that radon is diluted, which is to reduce indoor radon concentrations for good measure. Renovated stone house with a (board) material should be used selectively. Radionuclide content with different stone deposits, location and other natural conditions increase or decrease, it must be monitored in order to know whether the appropriate room decoration. 

Beware of nuclear contamination of drinking water 

To strengthen environmental protection of drinking water sources, beware of drinking water by the nuclear contamination. Radioactive contaminated water can be drunk directly. If water contaminated with radioactive substances irrigate crops, vegetables. Content of radioactive substances is significantly increased, harmful to human health food.

China mineral water rich, which also has a lot of water flowing through the way in being artificial or natural radioactive contamination. According to reports, monitored by the relevant departments, some of the blind development of mineral water containing radon concentration is too high, if the long-term consumption of this mineral water will harm the body. Therefore, the law enforcement and supervision departments over the country, you want to mineral development projects should be strictly managed, not only to strictly control the health indicators mineral commodities, but also attention to whether it is contaminated radioactive material. 

To the anti-coal radioactive contamination 

Coal often contain small amounts of radioactive material. Analysis indicates that many coal flue gas containing U, Th, Ra, 210Po and 210Pb. In most cases, although the content of these substances scarce, but if the long-term accumulation, with its air and radioactive material would bake food into the body, causing chronic damage to the body. 

Normal life, the use of coal, pay attention to ventilation, wary of soot into the body through breathing. Prohibit the consumption of coal directly baked goods, especially tea, tobacco, meat and biscuits. Also note that if you must use coal (carbon) baked shield, do not let the food in direct contact with soot. 

Mo to long-term wear gold and silver jewelry 

Wear gold and silver jewelry that people, especially the ladies, enjoyable and beauty make-up. Little do they know often wear jewelry will bring trouble to the people, and that is likely to suffer, "jewelry disease", namely skin diseases. 

In general, other than pure gold (24K) jewelry, other jewelry in the production process should incorporate small amounts of steel, chrome, nickel and other materials, especially those abnormal dazzling jewelry or cheap synthetic products, these jewelry products material composition is more complex, more likely to cause harm to human skin. According to reports, U.S. experts in the inspection found thousands of pieces of jewelry, which has hundreds of items containing radioactive substances, these radioactive elements on the human body have seriously compromised if long-term wear, may induce skin disease or skin cancer. Gold and silver jewelry, should always wear. Often wear jewelry products, preferably containing radioactive substances measured. 

Although the volume and weight of the indoor ornaments are small, but they are "pet" Close close people sometimes hurt radioactivity: 

Precious stones, there are precious diamond (diamond), ruby, sapphire, emerald and opal as well as ordinary jewel crystal, agate and garnet. Such gems tested, have not been found highly radioactive, such as crystal, quartz crystal, radioactivity was very low, not high radioactivity agate. 

Jade, jadeite and nephrite, including minerals and rocks as well as for a variety of arts and crafts carving, such as Liaoning Xiuyan and Xinjiang and nephrite, Guangdong "wide piece," Zhejiang "Qingtian jade" Tianjin "color jade "and Hubei" loose stone "and so on. One such as marble and marble with similar, white marble, red Northeast Northeast green, curved lines jade, pink, Ai Ye, Quyang jade, etc., and their products are made of metamorphism of limestone, radioactivity is very low. 

"Night Pearl", it is learned, after first being part of barite barium replaced radium, and after processing, the night can be light, strong radioactivity; Second, the fluorite through processing, heating or significant fluorescence under ultraviolet light, and after being irradiated uranium, can have different levels of radioactivity; three is processed by certain phosphorus-containing substances, the general radioactive; fourth is processed by certain materials made; five by radiation from. "Night Pearl" is a wounding of radioactivity, a look radiological safety proof, second, through measurement, and international or national standards.