水すい質しつ

noun

water quality

Refers to the chemical, physical, and biological characteristics of water, often in environmental, industrial, or public health contexts.

• この地ち域いきの水すい質しつはとても良よい。

  The water quality in this area is very good.

• 水すい質しつ汚お染せんが深しん刻こくな問もん題だいになっている。

  Water pollution has become a serious problem.