The Korea Institute of Nuclear Safety (KINS) and the Korea Meteorological Administration say that the radioactive substances leaked from the Fukushima nuclear power plant may reach South Korea around Thursday.

The amounts of the substances, however, are expected to be minimal, with little impact on human body.

The spokesman of the weather agency, Kim Seung-bae, told reporters on Monday that as Japan is expected to see the development of the high atmospheric pressure around Thursday morning, an air current one to three kilometers away from the ground surface will likely reach South Korea by the southwest wind, bringing with it significant precipitation to the nation.

Kim added that the nation is also likely see similar weather conditions more often in spring.

Meanwhile, chief of KINS Yoon Chul-ho, said that even if radioactive materials from the Fukushima plant flows into South Korea, the amount will be insignificant, noting that the levels of radiation leaked from the plant are steadily decreasing.