Japan Geoscience Union Meeting 2016

Presentation information


Symbol O (Public) » Public

[O-02] Poster presentations by senior high school students

Sun. May 22, 2016 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Keiko Konya(Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University), Kou Yamada(Waseda University)

1:45 PM - 3:15 PM

[O02-P46] Chemical Substances and its components in rainwater

*Shoki Yabutani1, Nozomu Karai1, Atsushi Miwa1, Kazuo Osada2 (1.Taki High School, 2.Nagoya University)

Keywords:meteorology, atmospheric pollution, acid rain

Large amount of nitrogen oxide and sulfide oxide is emitted from factories and homes from winter to spring every year, and problems of air pollutant for example PM2.5,are taken up. We decided to study how much air pollutants is contained in rainwater by gathering rainwater and checking air pollutants dissolving in rainwater. It is still being researched now but we submit an interim report.

1 : Gather rainwater with “raingoround” (“raingoround“ is a device developed by HORIBA factory which can gather rainwater by 5mm.
2 : Analyze rainwater with ion chromatograph system.

1 : Rainwater on Dec 11 had thick constituent concentration of the sea (Na or Cl).
→Rainwater brought by south wind have more sea water than that brought by north wind.
2 : Through four times experiments (Dec 11, 13, Jan 18, 29) as rain down, the concentration becomes low.
3 : We can find the tendency that the conductance becomes low steadily while pH doesn’t have any clear tendency.
→The rain has a lot of air pollutants in the beginning.
*After this experiments we want to study continuously how weather condition affects substances in rainwater and each amount of them.