(ゆうがいぶっしつ)

ゆうがいぶっしつ
noun
harmful substance; hazardous material
1. harmful substance; hazardous material; toxic substance
A substance that can cause harm to humans, animals, or the environment. Commonly used in environmental, health, and safety contexts.
有害物質(ゆうがいぶっしつ)検出(けんしゅつ)された。
A harmful substance was detected.
工場(こうじょう)から有害物質(ゆうがいぶっしつ)流出(りゅうしゅつ)した。
Hazardous materials leaked from the factory.
飲料水(いんりょうすい)(ふく)まれる有害物質(ゆうがいぶっしつ)基準値(きじゅんち)法律(ほうりつ)(さだ)められている。
The standard limits for harmful substances in drinking water are set by law.

Composed of 有害(ゆうがい) (harmful, hazardous) + 物質(ぶっしつ) (substance, material). A formal compound frequently seen in news, environmental reports, health regulations, and product safety information.

COMMON COLLOCATIONS:

  • 有害物質(ゆうがいぶっしつ)(ふく)む: to contain harmful substances
  • 有害物質(ゆうがいぶっしつ)排出(はいしゅつ): emission of hazardous materials
  • 有害物質(ゆうがいぶっしつ)除去(じょきょ)する: to remove toxic substances
  • 有害物質(ゆうがいぶっしつ)規制(きせい): regulation of harmful substances

SIMILAR WORDS:

  • 有毒(ゆうどく): toxic, poisonous — more specifically about poison
  • 化学物質(かがくぶっしつ): chemical substance — neutral term, not inherently harmful
  • 汚染物質(おせんぶっしつ): pollutant — specifically a substance that contaminates the environment
  • 危険物(きけんぶつ): dangerous goods — broader category including flammable and explosive materials