PMFモデリングを用いた豚舎におけるPM発生源の特定:粒子径分布データに基づく解析
Pradeep Kumar1, Seyit Uguz2, Shalini Tiwari1
1Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD, 57007, USA.
The Science of the total environment
|February 10, 2026
まとめ
豚舎内の粒子状物質(PM)は健康リスクとなる。発生源特定モデリングにより、生産室内のPMの主要な発生源として、動物用飼料、堆積粉塵、糞便が特定された。
科学分野:
- 環境科学
- 農業工学
- 公衆衛生
背景:
- 豚舎内の粒子状物質(PM)は、動物と人間の両方にとって健康リスクとなります。
- 効果的な空気質管理のためには、PMの具体的な発生源を理解することが不可欠です。
研究 の 目的:
- 豚生産環境におけるPM濃度と粒子径分布(PSD)を測定すること。
- 正値行列因子分解(PMF)モデリングを用いてPM発生源を特定すること。
- PM発生源特定のための低コストセンサーを評価すること。
主な方法:
- 夏と冬の生産室およびオフィスで、Grimm 11-D OPCを使用してPM濃度(PM2.5、PM10、TSP)とPSDを測定しました。
- 発生源特定のためにPSDデータにPMFモデリングを適用しました。
- Alphasense OPC-N3センサーの性能を評価しました。
主要な成果:
- 冬の生産室では、より高いPM濃度が観察されました。
- PMFモデリングにより、冬の生産室におけるTSPの主要な発生源として、動物用飼料、堆積粉塵、糞便が特定されました。
- 換気と浸入は、サブミクロン粒子に大きく寄与しました。
結論:
- PSDベースのPMFモデリングは、畜産業におけるPM発生源特定のための費用対効果の高い方法です。
- 本研究の知見は、豚生産環境における空気質管理に役立ちます。
- 低コストセンサーは、同様のアプリケーションで有望であることが示されました。
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