How toxic is the radioactive cloud?

On the mass media, there are often headlines that cause many people to be concerned about the extent of the impact of radioactive clouds. In fact, how high is the 'radioactive' cloud?

Scientists say, in terms of radiation safety expertise, μSv / h (read as a microphone per hour) is a measure of radiation dose rate.

Artwork of radioactive clouds (Photo: VARANS).

For example, in the incident information of the Fukushima Japan nuclear power plant information posted on the website of the Ministry of Science and Technology on April 1, 2011, the measured value of the environmental radiation dose rate in Hanoi is 0.172 μSv / h (rounded to 0.2 μSv / h).

Suppose, this radioactivity persists for 1 month in Hanoi and assumes that you stay outdoors continuously for 24 hours, you will receive a radiation dose (cumulative dose) of: 0.2 μSv / hx 24 hours x 30 days = 144 μSv. For humans, this is a very small dose value because only one X-ray, your body received radiation doses up to 610 µSv.

According to the Radiation in Daily Life document published by the Japanese Ministry of Science and Technology : 10,000 μSv is the dose that every Brazilian citizen receives each year (due to the environmental font this is high); 400 μSv is the dose received after each round trip Tokyo - New York; 600 μSv is the dose received each time a stomach X-ray is taken; 50 μSv is the dose received for each chest X-ray.

April 13-14 in Phan Rang City, Ninh Thuan Provincial People's Committee and Rosatom State Atomic Energy Group (Russian Federation) organized a dialogue forum 'Ninh Thuan Province with atomic energy sector: The reception of society on atomic energy, economic and social aspects in the future development of Ninh Thuan province '. Attending the seminar were Russian Ambassador Extraordinary and Plenipotentiary Andrei Grigorievich Kovtun.

Mr. Sergei Alexandrovich Boyarkin - program director of Rosatom Group - introduced the principles to ensure the highest safety in construction and operation of nuclear reactors such as: deep line prevention to prevent possible problems happening; check and detect possible incidents; incident management, avoiding risks, radioactive leakage to the outside .

At the forum, Rosatom Group experts also provided analyzes and explanations from the selection of plant construction sites, careful study of geology, distance to ensure safety when there are earthquake or wave incidents. God came to study and survey the fault points before starting construction.

Today (April 14), Rosatom Group will introduce experiences on social propaganda when building nuclear power plants in Russia, policies to support staff training for the future atomic energy industry. of Vietnam. At the same time, organize an open class for high school students in Phan Rang City on atomic energy.