2026-09-24 イェール大学
＜関連情報＞
- https://www.architecture.yale.edu/news/yale-cea-designs-living-systems-outperforming-hvac
- https://www.sciencedirect.com/science/article/pii/S037877882601220X
持続不可能な大気中CO2濃度上昇の状況下における、建物一体型バイオレメディエーションインフラの評価 Assessing building-integrated bioremediation infrastructure within the context of unsustainable rising atmospheric CO2
Phoebe Mankiewicz Ledins, Christina Ciardullo, Chunxu Huang, Patrick Pease, Tian Ma, Rebecca Rubright, Charlotte Welch, Michelle L. Bell, Nusrat Jung, Krystal J. Godri Pollitt, Elizabeth Hénaffi, Anna Dyson
Energy and Buildings Available online: 29 August 2026
DOI:https://doi.org/10.1016/j.enbuild.2026.118160
Highlights
- Prevalent HVAC paradigms are rendered ineffective as atmospheric CO2 rises.
- Bioremediation of CO2 indoors could reduce building dependence on outdoor air.
- Scalable experimental frameworks support quantification for building integration.
- Customizing system design parameters resulted in 43-fold differences in performance.
- Multiple viable room-scale configurations reduce modeled CO2 exposure below outdoor levels.
Abstract
Atmospheric CO2 concentrations are projected to increase from current concentrations (420 ppm) to 670–936 ppm within the next 50 years. While not acutely toxic, emerging evidence raises concern that continuous, chronic exposure within this range may contribute to significant negative health outcomes, including systemic inflammation, bone demineralization, and oxidative stress. This trend is particularly concerning for urban residents, who spend 90% of their time indoors where CO2 regularly exceeds 700–1000 ppm and pollutant levels are 2 to 10 times higher than outdoors. Most contemporary heating, ventilation, and air-conditioning systems reduce indoor CO2 concentrations by increasing exchange with outdoor air, leaving indoor occupants increasingly exposed as atmospheric conditions deteriorate. This study investigates the potential for biogenic systems to decouple indoor CO2 levels from outdoor conditions through the incorporation of bioremediative metabolisms into building infrastructure. Quantification of performance across design parameters produced scalable remediation models, shown to be viable for a range of real building conditions. We calculated a 43-fold improvement in module-scale CO2 remediation capacity across common operational parameters, such as airflow orientation and light intensity, that could be modulated to meet the customized requirements of building occupancy, patterns of use, and building systems integration. Architectural, HVAC, and CFD modeling demonstrated that a range of scales and spatial configurations of bioremediation systems within the evaluated conditions may reduce indoor CO2 levels below outdoor baselines, while delivering psychological and biophysical co-benefits, including biophilia and microbiome diversification. These findings provide a quantitative framework for integrating living systems into building-scale air quality management, illustrating a pathway toward adaptive, multifunctional infrastructure capable of improving human exposures as climate change reshapes atmospheric conditions.
