Radiation levels in Vietnam drop

TUOITRE

The radiation levels of the radioactive clouds from Japan’s quake-hit Fukushima I nuclear power plant that have covered Vietnam for several days have dropped, the Ministry of Science and Technology said.
Dr. Trinh Van Giap, Director of the Institute of Nuclear Science and Technology said in a meeting this morning that if there was no new nuclear problem in Japan, radiation levels in the air in Vietnam would continue to drop as radioactive particles would be diluted in air and rainwater. 

As of 15 p.m. yesterday, radioactive isotopes Be-7, K-40, Th-232 and U-238 were recorded at very low levels in Da Lat City by the Da Lat Nuclear Research Institute’s radiation observation stations. 

The institute said the levels of these radioactive materials would continue to drop sharply in days to come. 

Meanwhile, the stations no longer found Cs-134 and Cs-137 in the air in Da Lat. 
On April 16, the concentration of I-131 in the air in Hanoi also went down significantly, according to the Vietnam Atomic Energy Institute. 

Radioactive isotope I-131 in rainwater samples taken in various locations on April 15 was also recorded at very low levels that could not be harmful to human health, the Vietnam Agency for Radiation and Nuclear Safety reported.

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