Carbon Dioxide Emissions from Acid Mine Drainage Neutralization Are a Major Component of Metal Mining Carbon Footprints
酸性鉱山排水の中和による二酸化炭素排出は金属採掘のカーボンフットプリントの主要な構成要素である (AI 翻訳)
Stanisław Kołodziejski, Eva E. Stüeken, Laura Sánchez López, José Miguel Nieto, Carlos Ruiz Cánovas, Rafael Pérez‐López, Luke Bridgestock
🤖 gxceed AI 要約
日本語
酸性鉱山排水（AMD）の中和が金属鉱山のカーボンフットプリントの大きな割合を占めることを示した。イベリア黄鉄鉱帯のデータから、AMD関連CO2排出量は銅生産の従来排出量と同程度であり、将来の廃硫化物鉱物の酸化によりさらに増大する。鉱業のネットゼロ移行にはAMD排出の考慮が必要である。
English
This study reveals that CO2 emissions from acid mine drainage (AMD) neutralization are a major component of metal mining carbon footprints. Using data from the Iberian Pyrite Belt, they show AMD emissions are comparable to conventional copper production emissions and will increase with waste sulfide mineral oxidation. The findings emphasize the need to account for AMD emissions in mining's net-zero transition.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は金属資源の多くを輸入に依存しており、鉱山からのCO2排出の全容把握はサプライチェーン排出削減に重要である。本論文はAMD中和に伴う排出の重要性を示し、海外鉱山からの調達におけるScope3排出算定に活用できる知見を提供する。
In the global GX context
This study identifies a significant but previously unaccounted source of CO2 emissions from metal mining—acid mine drainage neutralization. For global decarbonization, accurate accounting of all mining emissions is essential, especially as metal demand rises for renewables and EVs. The findings call for updates to mining carbon footprint methodologies.
👥 読者別の含意
🔬研究者:Provides empirical data on AMD emissions for refining lifecycle assessment models of metals.
🏢実務担当者:Mining companies should incorporate AMD neutralization emissions into carbon inventories and explore mitigation.
🏛政策担当者:Regulators should consider AMD-related emission factors in mining sector guidelines for net-zero targets.
📄 Abstract（原文）
High Resolution Image Download MS PowerPoint Slide Achieving the transition to net zero human greenhouse gas emissions requires a large increase in metal production by mining. Acid mine drainage (AMD) neutralization is a potentially important but poorly quantified source of mining industry CO 2 emissions. Here, we show that AMD neutralization-related CO 2 emissions can be a major component of metal production carbon footprints. Data from the rivers and estuarine system draining the central and eastern Iberian Pyrite Belt show that AMD neutralization emits 32 ± 11 kt CO 2 /yr. Normalized to historic copper production rates, AMD-associated emissions (0.3–4.2 t CO 2 per t Cu) are of similar magnitude as conventional copper production carbon footprints (1–9 t CO 2 per t Cu). However, continual oxidative weathering of waste sulfide minerals will increase AMD-related CO 2 emission budgets into the future. Complete oxidative weathering of waste sulfide minerals extracted from this region will yield AMD-related CO 2 emissions (7–165 t CO 2 per t Cu) that exceed conventional Cu production carbon footprints by more than 1 order of magnitude. These findings highlight the need to account for AMD-related CO 2 emissions from metal mining to support the transition toward net zero greenhouse gas emissions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.est.6c05684first seen 2026-07-24 05:51:49
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。