HIGHLIGHTS
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Current AQHI: General Stations 4 to 5Roadside Stations 5 to 7
Forecast of Health Risk Maximums:
General Stations: Moderate
Roadside Stations: Moderate
Central/Western
Central/Western AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 61.7 PM2.5 42.6
SO2 12.7 PM10 63.2
O3 64.8
Kwai Chung
Kwai Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 66.2 PM2.5 44.4
SO2 10.9 PM10 58.8
O3 69.2
Sham Shui Po
Sham Shui Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 78.8 PM2.5 48.6
SO2 9.1 PM10 65.4
O3 45.1
Tai Po
Tai Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 48.4 PM2.5 29.1
SO2 7.4 PM10 45.8
O3 80.7
Tap Mun
Tap Mun AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 14.2 PM2.5 26.0
SO2 6.1 PM10 51.8
O3 82.3
Tsuen Wan
Tsuen Wan AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 68.1 PM2.5 39.0
SO2 11.3 PM10 52.5
O3 50.0
Tung Chung
Tung Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 62.6 PM2.5 39.9
SO2 12.9 PM10 63.6
O3 50.5
Yuen Long
Yuen Long AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 64.0 PM2.5 46.0
SO2 8.4 PM10 79.5
O3 56.2
Causeway Bay
Causeway Bay AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 62.1 PM2.5 49.1
SO2 2.9 PM10 68.5
O3 74.2
Central
Central AQHI 7
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 165.0 PM2.5 47.3
SO2 9.1 PM10 65.3
O3 31.5
Sha Tin
Sha Tin AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 33.8 PM2.5 36.3
SO2 8.8 PM10 54.1
O3 87.4
Kwun Tong
Kwun Tong AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 51.8 PM2.5 42.5
SO2 11.9 PM10 67.5
O3 94.9
Eastern
Eastern AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 55.6 PM2.5 38.9
SO2 9.5 PM10 58.1
O3 96.4
Mong Kok
Mong Kok AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 81.6 PM2.5 46.1
SO2 6.0 PM10 62.6
O3 39.6
Tuen Mun
Tuen Mun AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 53.6 PM2.5 54.6
SO2 8.5 PM10 89.2
O3 60.3
General Station
Roadside Station
Remark:

(1) The AQHI system currently is experiencing an unstable situation, steps have been taken to resume it normal. However, there may be intermittent interruption or  delay in updating of the data.  We apologize for any inconvenience caused.

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

(3) 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).

(4) 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
22-10-2014
Tomorrow A.M.
Tomorrow P.M.
General Stations Moderate Moderate to High
Roadside Stations Moderate Moderate to High
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
21:00 22-10-2014 AQHI Health Risk
General Stations Central/Western 5Link to past 24 hrs AQHI trend Moderate
Eastern 5Link to past 24 hrs AQHI trend Moderate
Kwun Tong 5Link to past 24 hrs AQHI trend Moderate
Sham Shui Po 5Link to past 24 hrs AQHI trend Moderate
Kwai Chung 5Link to past 24 hrs AQHI trend Moderate
Tsuen Wan 5Link to past 24 hrs AQHI trend Moderate
Yuen Long 5Link to past 24 hrs AQHI trend Moderate
Tuen Mun 5Link to past 24 hrs AQHI trend Moderate
Tung Chung 5Link to past 24 hrs AQHI trend Moderate
Tai Po 5Link to past 24 hrs AQHI trend Moderate
Sha Tin 5Link to past 24 hrs AQHI trend Moderate
Tap Mun 4Link to past 24 hrs AQHI trend Moderate
Roadside Stations Causeway Bay 5Link to past 24 hrs AQHI trend Moderate
Central 7Link to past 24 hrs AQHI trend High
Mong Kok 5Link to past 24 hrs AQHI trend Moderate
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Last revision date:21:06 22-10-2014