有機 ゆうき汚染 おせん物質 ぶっしつでしょう
yūki osembusshitsudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 有機汚染物質

1. Organic pollutants, likely.; Probably organic pollutants.

Polite
Presumptive
Conjecture