牙醫診所室內懸浮微粒濃度特性分析研究;Analysis of Indoor Suspended Particulate Matter Concentration Characteristics in Dental Clinics

NCUIR > Engineering College > Executive Master of Environmental Engineering > Electronic Thesis & Dissertation > Item 987654321/98695

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/98695

Title:	牙醫診所室內懸浮微粒濃度特性分析研究;Analysis of Indoor Suspended Particulate Matter Concentration Characteristics in Dental Clinics
Authors:	陳俊文;Chen, Chun-Wen
Contributors:	環境工程研究所在職專班
Keywords:	室內空氣品質;懸浮微粒;牙醫診所;微感測器;indoor air quality;particulate matter;dental clinic;microsensors
Date:	2025-08-27
Issue Date:	2025-10-17 13:05:22 (UTC+8)
Publisher:	國立中央大學
Abstract:	本研究探討牙醫診所內部不同空間的懸浮微粒（Particulate matter,PM)PM2.5與PM10）濃度變化，評估不同診間與時段差異對室內空氣品質之影響，並驗證空氣清淨機對室內空氣品質改善之效益，並使用空氣品質監測儀器及空氣盒子（AirBox）進行不同區域空氣品質監控，並記錄通風系統運作狀況、儀器使用頻率及病患流量等相關影響因素。另以直讀式儀器（TSI-8530、M2000 與TES-1370H）與微感測器（PMS5003、SCD30）交叉比對CO2 濃度變化以確保數據可信度。研究結果顯示，清洗室因石膏研磨產生最高濃度微粒（PM₂.₅與PM₁₀尖峰濃度可逾200 μg/m³），為主要污染來源。半開放式診療區於尖峰時段亦因人員及機械操作頻繁而濃度升高（中位數約19–20 μg/m³），而候診區於離峰及清潔時段出現累積現象（24.6–25.4 μg/m³），反映換氣不足導致公共空間亦存在暴露風險。相較之下，臨近出入口或靠近清淨機區域的PM 濃度則相對較低。空氣清淨機可在研磨操作與候診時段顯著降低PM 濃度（50–80%），但若未搭配局部排氣，仍不足以完全降低高峰期懸浮微粒暴露於空間中。牙醫診所內懸浮微粒分佈與作業活動及通風效率密切相關。針對高風險區（如石膏研磨）與人員聚集區（如診療區），建議採高效空氣清淨機與局部排氣系統為主，並輔以安裝全熱交換器提升整體換氣率，以及持續進行 CO₂ 監測作為通風管理指標，進一步提升牙醫診所的室內空氣品質。此外，執行高暴露風險作業之人員應配戴 N95 等級以上的個人防護裝備，保障醫護人員健康。;This study investigates spatiotemporal variations in particulate matter (PM₂.₅ and PM₁₀) across functional zones of a dental clinic, evaluates how room type and time period affect indoor air quality (IAQ), and verifies the effectiveness of air purifiers in improving IAQ. Air quality was continuously monitored in multiple areas using reference instruments and Air Box sensors; operation of the ventilation system, instrument usage frequency, and patient flow were recorded as potential covariates. To ensure data reliability, CO₂ concentration variations were cross-checked using directreading instruments (TSI-8530, M2000, and TES-1370H) and microsensors (PMS5003 and SCD30). Results show that the cleaning room (plaster grinding area) generated the highest particle concentrations (PM₂.₅/PM₁₀ peaks >200 μg/m³), indicating a primary source of emissions. In the semi-open treatment area, concentrations rose during peak hours due to frequent personnel movement and equipment operation (median ≈19–20 μg/m³). The waiting area exhibited accumulation during off-peak and cleaning periods (24.6–25.4 μg/m³), reflecting inadequate ventilation and exposure risks in public spaces. By contrast, zones near entrances or close to air purifiers had relatively lower PM levels. Air purifiers reduced PM concentrations substantially during grinding and waiting periods (by 50–80%), but without local exhaust ventilation they were insufficient to fully mitigate peak exposures. PM distributions in dental clinics are closely linked to work activities and ventilation efficiency. For high-risk zones (e.g., plaster grinding) and crowded treatment areas, we recommend deploying high-efficiency air purifiers together with local exhaust ventilation, supplemented by installing energy recovery ventilators to increase overall air-change rates, and continuous CO₂ monitoring as a ventilation management indicator to further improve IAQ. Personnel performing high-exposure tasks should wear N95- class (or higher) respiratory protection to safeguard health.
Appears in Collections:	[環境工程研究所碩士在職專班] 博碩士論文

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