HIGHLIGHTS
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Current AQHI: General Stations 2 to 3Roadside Stations 3 to 4
Forecast of Health Risk Maximums:
General Stations: Moderate
Roadside Stations: Moderate
Central/Western
Central/Western AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 29.8 PM2.5 30.5
SO2 0.6 PM10 42.2
O3 25.0
Kwai Chung
Kwai Chung AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 33.1 PM2.5 14.6
SO2 7.8 PM10 19.2
O3 28.7
Sham Shui Po
Sham Shui Po AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 58.9 PM2.5 21.6
SO2 3.5 PM10 32.5
O3 7.4
Tai Po
Tai Po AQHI 2
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 30.0 PM2.5 20.9
SO2 2.4 PM10 33.3
O3 10.7
Tap Mun
Tap Mun AQHI 2
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 15.9 PM2.5 18.0
SO2 3.9 PM10 23.3
O3 12.7
Tsuen Wan
Tsuen Wan AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 42.2 PM2.5 21.3
SO2 7.3 PM10 29.0
O3 23.4
Tung Chung
Tung Chung AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 51.2 PM2.5 32.4
SO2 7.7 PM10 51.7
O3 1.7
Yuen Long
Yuen Long AQHI 2
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 34.7 PM2.5 28.9
SO2 3.3 PM10 45.0
O3 1.1
Causeway Bay
Causeway Bay AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 75.0 PM2.5 42.6
SO2 1.6 PM10 59.3
O3 9.3
Central
Central AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 49.9 PM2.5 25.6
SO2 3.9 PM10 36.5
O3 14.5
Sha Tin
Sha Tin AQHI 2
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 33.0 PM2.5 21.1
SO2 4.8 PM10 30.8
O3 4.2
Kwun Tong
Kwun Tong AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 28.1 PM2.5 27.6
SO2 2.4 PM10 42.5
O3 26.8
Eastern
Eastern AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 37.8 PM2.5 32.1
SO2 0.3 PM10 43.1
O3 15.1
Mong Kok
Mong Kok AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 60.9 PM2.5 31.7
SO2 2.0 PM10 44.1
O3 7.3
Tuen Mun
Tuen Mun AQHI 2
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 29.4 PM2.5 32.3
SO2 5.7 PM10 58.7
O3 5.4
General Station
Roadside Station
Remark:

(1) The AQHI information is based on raw data taken directly from EPD's Air Quality Monitoring Network.

(2) The hourly reported AQHI is for short term health risk communication; for health risks of long-term exposure of the air quality, please refer to Annual Air Quality Index (Annual AQI).

(3) In case of station or equipment suspension due to maintenance, the data collection for calculation of AQHI at station will be affected, the data of a most similar station will then be adopted. Such AQHI will be shown in italics.



FORECAST of Health Risk
07-03-2015
Today A.M.
Today P.M.
General Stations Low to Moderate Low to Moderate
Roadside Stations Low to Moderate Low to Moderate
低(LOW)[1-3] 中(MODERATE)[4-6] 高(HIGH)[7] 甚高(VERY HIGH)[8-10] 嚴重(SERIOUS)[10+]
Air Quality Health Index
01:00 07-03-2015 AQHI Health Risk
General Stations Central/Western 3Link to past 24 hrs AQHI trend Low
Eastern 3Link to past 24 hrs AQHI trend Low
Kwun Tong 3Link to past 24 hrs AQHI trend Low
Sham Shui Po 3Link to past 24 hrs AQHI trend Low
Kwai Chung 3Link to past 24 hrs AQHI trend Low
Tsuen Wan 3Link to past 24 hrs AQHI trend Low
Yuen Long 2Link to past 24 hrs AQHI trend Low
Tuen Mun 2Link to past 24 hrs AQHI trend Low
Tung Chung 3Link to past 24 hrs AQHI trend Low
Tai Po 2Link to past 24 hrs AQHI trend Low
Sha Tin 2Link to past 24 hrs AQHI trend Low
Tap Mun 2Link to past 24 hrs AQHI trend Low
Roadside Stations Causeway Bay 4Link to past 24 hrs AQHI trend Moderate
Central 3Link to past 24 hrs AQHI trend Low
Mong Kok 3Link to past 24 hrs AQHI trend Low
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Last revision date:01:07 07-03-2015