生物 せいぶつ濃縮 のうしゅくじゃありませんでした
seibutsunōshukujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 生物濃縮

1. Was not bioaccumulation.; Was not bioconcentration.

Past/Perfective
Negative
Polite
Terminal Form