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2. HKEPD. Final Report for Consultancy Study on Indoor Air Pollution in Offices and Public Places in Hong Kong, 1997.
3. HKEPD. Guidance Notes for the Management of Indoor Air Quality in Offices and Public Places, Indoor Air Quality Management Group, 1999.
4. Comparison between indoor and outdoor air contaminant levels in residential buildings from passive sampler study
5. Indoor/outdoor air quality correlation and questionnaire survey at two staff quarters in Hong Kong