カーボンニュートラル下におけるアミン系炭素回収が大気粒子生成に及ぼす顕在化しつつある重大な影響
Substantial Emerging Impact of Amine-Based Carbon Capture on Atmospheric Particle Formation under Carbon Neutrality (原題)
Zeqi Li, Jiewen Shen, Bin Zhao, Shuxiao Wang, Jingfan Xu, Yisheng Sun, Hong‐Bin Xie, Yafang Cheng, Xiaochun Wang, Da Gao, Dejia Yin, Zhaojin An, Yiqi Zhao, Jingkun Jiang, Xi Lu, Jiacong Li, Kebin He, Hong He, Jincai Zhao
🤖 gxceed AI 要約
日本語
MEAを用いたアミン吸収型炭素回収が大気中に漏出し、新粒子生成（NPF）を促進する影響を三次元モデルで評価した。中国の石炭火力で2060年に中程度のCC導入でも大気中MEA濃度が数十pptvに達し、H2SO4-MEA核生成が広域（約100万km2）でDMA核生成を凌駕する。粒子数濃度が50〜187%増加し、約4.3億人がWHO高曝露基準を超え、超微小粒子により2060年に中国で約34,800人の追加死亡が推定される。
English
A 3D model incorporating quantum-chemical and cluster-dynamics data evaluates atmospheric MEA from amine-based carbon capture at China's coal plants under carbon-neutrality scenarios. By 2060, even moderate CC deployment raises MEA to tens of pptv, making H2SO4-MEA nucleation dominate over H2SO4-DMA across ~1 million km2 and boosting particle numbers 50-187%. This exposes ~430 million people above WHO high-exposure benchmarks and is estimated to cause ~34,800 additional deaths in China in 2060.
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
日本でもCCS/CCUSはGX推進の柱であり、アミン漏出の大気質・健康リスクは環境アセスメントや地域合意形成の論点となる。脱炭素技術の副作用を事前評価する視点は、日本のGX政策・企業のCCUS導入判断に示唆を与える。
In the global GX context
As CCUS scales under net-zero pathways globally, this study flags a trade-off between climate benefits and air-quality/health burdens that disclosure and environmental review frameworks must increasingly account for. It adds empirical weight to calls for proactive monitoring and preventive design standards for amine-based capture.
👥 読者別の含意
🔬研究者:CCUSの大気質・健康への副作用をモデル化する手法と、核生成化学から曝露・死亡推定までの連携評価の枠組みを参考にできる。
🏢実務担当者:CCS/CCUS導入検討時に、アミン漏出の大気影響モニタリングや環境アセス項目の追加を検討する根拠となる。
🏛政策担当者:CCUS大規模導入政策において、気候便益と大気質・健康コストのトレードオフを事前評価する規制設計の必要性を示す。
📄 Abstract（原文）
Abstract Carbon capture (CC) is indispensable to carbon neutrality, and amine-based absorption using monoethanolamine (MEA) is among the most mature CC technologies. MEA can enhance atmospheric new particle formation (NPF), the primary source of atmospheric particles. However, the atmospheric impacts of MEA escaping from future large-scale CC deployment remain unknown. Here, we develop a three-dimensional model that represents MEA sources, sinks, and H2SO4-MEA nucleation based on quantum chemical and cluster dynamics calculations, to evaluate atmospheric MEA and its impacts from CC deployment at China’s coal-fired power plants under carbon-neutrality scenarios. By 2060, even moderate CC deployment raises atmospheric MEA concentrations to tens of pptv, exceeding dimethylamine (DMA), the canonical urban NPF agent. H2SO4-MEA nucleation consequently overtakes H2SO4-DMA nucleation across extensive CC-deployment regions (∼1 million km2) and is more than 10 times stronger within the CC-intensive core (∼0.2 million km2), raising particle number concentrations by 50–187% and exposing ∼430 million people to levels exceeding the WHO high-exposure benchmark. The associated rise in ultrafine particles is estimated to cause ∼34,800 additional deaths across China in 2060. We reveal that CC deployment may deliver climate benefits while inadvertently worsening particulate pollution and public-health burdens, warranting proactive and early preventive action.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acs.est.6c12903first seen 2026-10-29 04:47:49 · last seen 2026-11-06 04:47:57
- primary_source https://doi.org/10.1021/acs.est.6c12903first seen 2026-11-01 23:58:42
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