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Indoor Air Quality (IAQ) 室內空氣質素

Indoor Air Quality (IAQ) plays a vital role in promoting public health, productivity, and comfort within indoor environments. Recognizing its importance, Hong Kong introduced the IAQ Certification Scheme for Offices and Public Places. This scheme sets rigorous standards for assessing air quality and categorizes compliance into "Excellent Class" and "Good Class."

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室內空氣質素 (IAQ) 對保障公眾健康、提高生產力和舒適度至關重要。為此，香港推出了室內空氣質素檢定計劃，針對辦公室及公眾場所制定檢測標準，並將結果分為「卓越級」及「良好級」。

 

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Key IAQ Parameters

主要 IAQ 指標

IAQ objectives for offices & public places

(Effective on 1 July 2019)

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  1. Carbon Dioxide (CO₂): Indicative of ventilation effectiveness.

  2. Carbon Monoxide (CO): Monitoring for combustion-related pollutants.

  3. Respirable Suspended Particulates (PM10): Assessing particulate matter impacting respiratory health.

  4. Nitrogen Dioxide (NO₂): Emitted from combustion sources.

  5. Ozone (O₃): Monitored to manage secondary air pollutants.

  6. Formaldehyde (HCHO): A common indoor pollutant from building materials.

  7. Total Volatile Organic Compounds (TVOCs): Reflecting emissions from various household and industrial products.

  8. Radon: A naturally occurring radioactive gas.

  9. Airborne Bacteria: Indicators of microbial air quality.

  10. Mould: Evaluated through walkthrough inspections to identify visible growth.

 

Compliance with these parameters is critical for ensuring a safe and healthy indoor environment. Buildings are encouraged to meet these objectives through proper ventilation, maintenance, and remediation where necessary​.​ For further details, you can refer to the booklet "Improve the Indoor Air Quality in Your Building".

辦公室及公眾場所內的室內空氣質素指標 (於2019 年7月1日起生效)​

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  1. 二氧化碳 (CO₂)：顯示通風效率。

  2. 一氧化碳 (CO)：監控由燃燒產生的污染物。

  3. 可吸入懸浮粒子 (PM10)：關注對呼吸道有害的細微粒子。

  4. 二氧化氮 (NO₂)：源自燃燒活動的排放物。

  5. 臭氧 (O₃)：管理由化學反應產生的二次污染物。

  6. 甲醛 (HCHO)：來自建築材料的常見室內污染物。

  7. 總揮發性有機化合物 (TVOCs)：反映各種產品的揮發性氣體。

  8. 氡氣：一種天然放射性氣體。

  9. 空氣中的細菌：微生物的濃度指標。

  10. 霉菌：通過現場檢查來評估是否存在可見霉菌問題。

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符合這些標準是維護健康室內環境的重要一步。建築物應通過適當的通風、日常維護和針對性措施，確保達到或超越相關目標。如需進一步詳情，您可以參閱小冊子《改善樓宇的室內空氣質素》。

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