水質(すいしつ)

すいしつ
noun
water quality
naturescience
1. water quality
The chemical, physical, and biological characteristics of water, typically evaluated to determine its suitability for drinking, swimming, agriculture, or environmental health.
水質(すいしつ)検査(けんさ)を行(おこな)う。
To conduct a water quality test.
この川(かわ)の水質(すいしつ)は良好(りょうこう)だ。
The water quality of this river is good.
工場(こうじょう)の排水(はいすい)が原因(げんいん)で、周辺(しゅうへん)の水質(すいしつ)が悪化(あっか)している。
The water quality in the surrounding area has deteriorated due to factory wastewater.

Composed of 水(すい) (water) and 質(しつ) (quality). A key term in environmental science and public health. Water quality monitoring is an important part of environmental protection in Japan.

Common collocations

Related words

  • 水質(すいしつ)汚濁(おだく): water contamination — a more technical term for water pollution
  • 浄水(じょうすい): water purification / purified water
  • 下水(げすい): sewage — wastewater
  • 飲料水(いんりょうすい): drinking water

Related Words

Related: 下水(げすい) (sewage)
Related: 飲料水(いんりょうすい) (drinking water)
general
Added 2026.4.6 6:08 · Revised 2026.9.2 13:02
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