常呂川の英語ポスター

科学英語交流発表会に出展する常呂川のポスターです。

 常呂川の水質に関係する２つの化学物質（リン酸イオン，硝酸態窒素）を比較すると，川への流入経路異なっているようだ，という内容です。 

 This is a poster to display in the Exibition of Science English in Hokkaido.

 The summary of this poster is as follows. 

We measured the phosphate ion concentration and nitrate nitrogen concentration to examine a relationship between rainfall and the river’s water quality. Also, we calculated their inlet flow. The phosphate ion attaches itself to the soil strongly, but nitrate nitrogen attaches itself weakly. We understood that this difference affects the river’s water quality.