低コストPMセンサーの職業衛生用途における性能の定量化と改善
Sander Ruiter1,2, Eelco Kuijpers1, Susan Peters2
1Netherlands Organization for Applied Scientific Research (TNO), Healthy Living and Work, RAPID, Princetonlaan 6, Utrecht 3584 CB, The Netherlands.
Annals of work exposures and health
|February 2, 2026
まとめ
低コストセンサーを使用して粒子数から粒子質量を再計算すると、職業環境におけるバイアスが大幅に減少します。この実用的な方法は、広範な参照測定なしで危険な粒子曝露モニタリングを改善し、職場環境の安全性を向上させます。
科学分野:
- 労働安全衛生
- 環境モニタリング
- センサー技術
背景:
- 低コストの粒子状物質（PM）センサーは、職場での曝露評価を提供しますが、粒子タイプによって異なるバイアスと誤差を示します。
- 従来の校正には広範な参照測定が必要ですが、多様な職業環境では実用的でないことがよくあります。
- 危険な浮遊粒子による健康リスクを軽減するには、正確なPMモニタリングが不可欠です。
主な方法:
- 6つの異なる職業状況で、粒子数と質量濃度のセンサー測定値と参照測定値をペアで収集しました。
- センサー報告の測定値と、物理ベースのアルゴリズムを含む、粒子数カウントから質量を計算する4つの方法を評価しました。
- すべての測定および再計算方法について、絶対バイアスと相対バイアス、および誤差を計算しました。
結論:
- 粒子数カウントから質量を再計算することは、低コストPMセンサーデータのバイアスを減らすための実行可能な戦略です。
- このアプローチは、広範な参照データを必要とせずに、職業曝露評価のためのセンサー精度を向上させます。
- センサー性能の向上は、危険な粒子曝露のより良い管理に役立ち、労働者の健康を促進します。
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