[O-08] Poster presentations by senior high school students

[O08-P66] Relationship between Environmental Radiation Measured by Radiation Monitor "Cogamo" and Meteorological Factors

*Yuki Seto¹, Aoi Atobe², Hina Matsuno³ (1.Ishikawa Prefectural Nanao High School, 2.Junten Senior High School, 3.Waseda University Honjo Senior High School )

Keywords:Radiation, Weather, Thundercloud

Environmental radiation is broadly classified into cosmic radiation and radiation from natural radionuclides, and their arrival on the ground is expected to vary according to changes in meteorological factors.
We analyzed the correlation between meteorological factors such as temperature, humidity, and atmospheric pressure and environmental radiation doses using the observation network of the radiation monitor "Cogamo" distributed to households by the Citizen Science "Thundercloud Project".
As a result, a negative correlation was found between temperature and radiation detection frequency for radiation energies below 3 MeV, and no correlation was found for radiation energies above 3 MeV. Whether this is due to the nature of the detector or the actual evaluation of the increase or decrease in radiation dose remains to be determined and will be investigated further. No correlation was found between humidity and radiation detection frequency. On the other hand, a negative correlation was found between air pressure and radiation detection frequency. Since we did not isolate the weather (e.g., whether there was rainfall or snowfall), we plan to conduct a more detailed investigation in the future.