排出

• Reading: はいしゅつ
• Romaji: haishutsu
• Kanji breakdown: 排 (hai) — expel, push out; 出 (shutsu) — go out, emit, release
• Pronunciation: /hai.ɕɯ.tsɯ/

Meaning

Discharge; emission; excretion. The act of releasing or expelling substances outward.

A noun and suru-verb meaning to discharge, emit, or expel. Most commonly used in environmental contexts for CO2 emissions (CO2排出 or 排出量, haishutsuryou, emission volume). Also used in biology for excretion and in industry for waste discharge. The verb form 排出する means to emit or discharge. A key term in climate change discussions.

Examples

1. この工場は年間で大量のCO2を排出している。 This factory emits a large amount of CO2 every year.
2. 排出量を減らすための新しい技術が開発された。 New technology to reduce emission volumes has been developed.
3. 汚染物質の排出基準が厳しくなった。 The emission standards for pollutants have become stricter.

Usage Guide

Context: environment, industry, biology

Tone: neutral

Origin & History

From Sino-Japanese: 排 (hai, expel/push out) + 出 (shutsu, go out/emit). Literally 'push out and emit' — the forceful release of something outward.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal