The radiation environmental quality

Beijing, baotou, shijiazhuang, nanjing, changsha, nanning, guizhou, urumqi and other provinces and cities in the air radon concentration is 6.0 ~ 51.0 Bq/m3, and calendar year monitoring results are basically identical, the indoor radon concentration is lower than the state promulgated "standard of housing radon concentration control", but in the air of environment of baotou city Ji daughter and the ratio of the potential of radon daughter alpha was 0.72, 3.6 times for our country's average, Shanghai, tianjin, shijiazhuang, Qingdao, hangzhou, xi 'an city environments such as total alpha, beta radioactive aerosol specific activity to maintain the normal level.

Pollution sources around the radiation environment

In 2003, qinshan nuclear power base in zhejiang and guangdong daya bay/safe and normal operation of ling ao nuclear power station.

Qinshan nuclear power base of the nuclear power plant for the radioactive effluent is lower than the limit stipulated by the state, a slightly elevated ambient gamma radiation dose rate. In qinshan nuclear power base airborne effluent discharge of the dominant orientation of tritium gas content is < 5.2 ~ 386.7 mBq/m3 air, with a mean of 128.5 + / - 107.8 mBq/m3 air, slightly higher than the background value before operation. In a variety of other environmental media, nuclear power plant emissions of radioactive nuclide concentration are in front of the nuclear power plant running background fluctuation range.

In 2003 in guangdong daya bay/ambient gamma radiation dose rate of ling ao nuclear power station and radionuclide content remained in the air in the natural background levels before the nuclear power plant operation. In west daya bay waters, in addition to water content of tritium < 1.3 ~ 70.7 Bq/L, all the other artificial radionuclide content are at the end of this fluctuation range. In Marine aquatic organisms oyster samples, monitoring to the key of the nuclear power plant emissions of nuclide 110 mag, the range of 0.06 ~ 0.27 Bq/kg, fresh, annual average 0.14 Bq/kg, fresh. In a variety of other environmental media, nuclear power plant emissions of radioactive nuclide concentration are in front of the nuclear power plant running background fluctuation range.

The electromagnetic radiation pollution sources

Monitoring results show that in addition to the individual mobile communication base station electromagnetic radiation levels over the top of the aerial platform related national standards, the vast majority of the base station around the building indoor and environment sensitive electromagnetic radiation levels are in line with the state of the electromagnetic radiation protection regulations limit (GB8702-88); Part of the 500 kv high-voltage transmission lines around environmental electromagnetic radiation level exceed the limits set by the state; Close around the radio and TV stations, is apart from the antenna part of high-rise building the roof platform and residential window sensitive electromagnetic radiation level more than electromagnetic radiation protection regulations of the state, and from the tower antenna far, lower floors or not directly to towers sensitive electromagnetic radiation level consistent with national standards.