There are 5 points in Vietnam that detect radioisotopes

The report of the Ministry of Science and Technology said that radioactive iodine has been detected in the air in Ninh Thuan, HCMC. In Hanoi also detected radioactive isotopes Cs-137, but did not affect human health.

The measurement results obtained on March 30 recorded that the radioactive isotope I-131 in the gas sample in Ninh Thuan was 19.2 micro Berquerel (calculated wrongly) on a m ^{3 of} gas, higher. normal level. Similarly, the measurement results obtained on March 29 recorded that the artificial radioisotope I-131 in the gas sample in HCMC was 20.1 micro Berquerel (calculated wrongly) on a m ^{3 of} gas. . The threshold for detection of this radioactive substance is 0.5 μBq / m ³ .

According to the Ministry's report, in addition to the radioactive isotope I-131, the Nuclear Science and Technology Institute in Hanoi today discovered the radioactive isotopes Cs-137 and Cs-134 (serial), corresponding to the sample results were 11,4 micro Berquerel (calculated error) and 10,4 micro Berquerel (calculated error) on a m ^{3 of} gas.

So far the stations have detected radioactive isotopes in 5 locations: Lang Son, Hanoi, Ho Chi Minh City, Da Lat and Ninh Thuan.

However, according to Dr. Dang Thanh Luong, Deputy Director of Department of Nuclear Radiation Safety, the amount of radiation measured is hundreds of thousands of times lower than the standard, so it does not affect people's health and the environment.

Mr. Liang said that this radiation could come from the incident of the Fukushima nuclear power plant in Japan.

Explaining more about this, Dr. Nguyen Nhi Dien, Director of Da Lat Nuclear Research Institute, said that during this time, only Japan had such a large amount of radiation spread out.

Department of radioactive isotope inspection at Da Lat Nuclear Research Institute. Photo Vnexpress

Referring to the possibility of rain in Hanoi yesterday may increase the effect of radioactive isotopes in the air or not, Mr. Dien said, the content of that substance is very low, does not affect health and people do not need to worry.

"If there is rain, radioactive material will fall to the ground. If there is a high concentration of radioactive air, it will affect the crop. However, the concentration is much lower than the current standard, no problem. "Mr. Dien stressed.

According to Dr. Dien, radiation in Vietnam will tend to decrease gradually, without any incidents from Japan's nuclear power plant. The half-life of iodine is 8 days (ie, every 1 to 8 days will reduce the amount of radiation).

In the time to come, the monitoring stations of Vietnam continue to measure radioactive changes in the country and monitor the situation of Japanese nuclear incidents.

Meanwhile, the CTBTO (National Data Center of the Comprehensive Nuclear Test Ban Treaty) today said I-131 was detected at several stations in the Middle East such as Kuwait and North Africa and Mongolia.

In Southeast Asia, only stations in the Philippines have found radionuclides.

' Based on the calculated radioactive cloud image for today and tomorrow, in Southeast Asia, though the main cloud part, though not yet on the Vietnamese continental shelf, tends to be broken down and spreading widely in Southeast Asia and flying in the region between the Philippines, Indonesia, Malaysia, Laos, Champhuchia and Vietnam ', reported CTBTO.

The monitoring stations of CTBTO network are very sensitive and can detect radioactive nuclei with very low concentrations in the atmosphere.

In the coming days, small clouds can pass through Laos, Vietnam and Cambodia but it is difficult to detect its influence on the current radiation background in Vietnam, because of the very high radioactive nucleus concentration. small, can't change the background of radiation. Therefore, it does not affect human health.

Forecasting until today, radioactive clouds have not entered the continental shelf of our country. The monitoring stations of CTBTO network are very sensitive and can detect radioactive nuclei with very low concentrations in the atmosphere.