HIGHLIGHTS
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Current AQHI: General Stations 5 to 7Roadside Stations 6
Forecast of Health Risk Maximums:
General Stations: High
Roadside Stations: High
Central/Western
Central/Western AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 86.7 PM2.5 40.9
SO2 25.0 PM10 61.4
O3 35.9
Kwai Chung
Kwai Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 135.6 PM2.5 38.3
SO2 27.1 PM10 50.8
O3 44.9
Sham Shui Po
Sham Shui Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 94.4 PM2.5 37.6
SO2 24.0 PM10 44.8
O3 48.3
Tai Po
Tai Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 36.1 PM2.5 35.8
SO2 3.7 PM10 53.9
O3 127.3
Tap Mun
Tap Mun AQHI -
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 - PM2.5 -
SO2 - PM10 -
O3 -
Tsuen Wan
Tsuen Wan AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 105.2 PM2.5 43.5
SO2 22.2 PM10 63.2
O3 65.3
Tung Chung
Tung Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 70.4 PM2.5 37.4
SO2 17.4 PM10 62.9
O3 113.9
Yuen Long
Yuen Long AQHI 7
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 46.0 PM2.5 56.6
SO2 7.5 PM10 78.0
O3 160.0
Causeway Bay
Causeway Bay AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 187.6 PM2.5 48.3
SO2 18.4 PM10 70.1
O3 5.9
Central
Central AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 160.8 PM2.5 40.4
SO2 23.2 PM10 58.1
O3 13.2
Sha Tin
Sha Tin AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 23.1 PM2.5 36.4
SO2 8.2 PM10 52.6
O3 164.1
Kwun Tong
Kwun Tong AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 45.6 PM2.5 33.5
SO2 12.5 PM10 56.5
O3 112.4
Eastern
Eastern AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 71.3 PM2.5 31.1
SO2 5.1 PM10 45.2
O3 72.5
Mong Kok
Mong Kok AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 179.1 PM2.5 34.6
SO2 20.7 PM10 48.5
O3 14.7
Tuen Mun
Tuen Mun AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 57.9 PM2.5 46.9
SO2 9.4 PM10 72.2
O3 141.4
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
22-09-2014
Today P.M.
Tomorrow A.M.
General Stations Low to High Low to Moderate
Roadside Stations Moderate to High 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
13:00 22-09-2014 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 6Link to past 24 hrs AQHI trend Moderate
Yuen Long 7Link to past 24 hrs AQHI trend High
Tuen Mun 6Link 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 6Link to past 24 hrs AQHI trend Moderate
Tap Mun -Link to past 24 hrs AQHI trend -
Roadside Stations Causeway Bay 6Link to past 24 hrs AQHI trend Moderate
Central 6Link to past 24 hrs AQHI trend Moderate
Mong Kok 6Link to past 24 hrs AQHI trend Moderate
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Last revision date:13:06 22-09-2014