副ふく流りゅう煙えん

noun

sidestream smoke; secondhand smoke

Refers specifically to smoke that comes directly from the burning end of a cigarette, as opposed to mainstream smoke (主流煙) exhaled by the smoker. Often discussed in the context of passive smoking.

See also: 主流煙

• 副ふく流りゅう煙えんには多おおくの有ゆう害がい物ぶっ質しつが含ふくまれている。

  Sidestream smoke contains many harmful substances.

• 副ふく流りゅう煙えんによる受じゅ動どう喫きつ煙えんが問もん題だいになっている。

  Passive smoking from sidestream smoke has become a problem.