Past record of Air Quality Health Index (Simplified Chinese Version)
Update Frequency: Every Six Months

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations since 30 December 2013 (Simplified Chinese Version)


Data Dictionar(ies) : http://www.aqhi.gov.hk/psi/dd/hk_aqhisc_en.pdf

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