水すい質しつ汚お染せん

noun

water pollution

Refers to contamination of water bodies such as rivers, lakes, and oceans, often used in environmental contexts.

• 工こう場じょう排はい水すいが原げん因いんで水すい質しつ汚お染せんが進すすんでいる。

  Water pollution is worsening due to factory wastewater.

• 水すい質しつ汚お染せんを防ふせぐために、法ほう律りつが強きょう化かされた。

  Laws were strengthened to prevent water pollution.