HIGHLIGHTS
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Current AQHI: General Stations 3 to 5Roadside Stations 5
Forecast of Health Risk Maximums:
General Stations: Moderate
Roadside Stations: Moderate
Central/Western
Central/Western AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 113.6 PM2.5 56.1
SO2 8.5 PM10 73.0
O3 3.3
Kwai Chung
Kwai Chung AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 84.6 PM2.5 37.4
SO2 6.2 PM10 46.9
O3 2.8
Sham Shui Po
Sham Shui Po AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 115.3 PM2.5 54.3
SO2 8.0 PM10 69.2
O3 2.2
Tai Po
Tai Po AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 63.0 PM2.5 46.3
SO2 4.9 PM10 54.8
O3 52.0
Tap Mun
Tap Mun AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 14.7 PM2.5 53.3
SO2 11.7 PM10 92.1
O3 87.6
Tsuen Wan
Tsuen Wan AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 123.7 PM2.5 49.5
SO2 16.0 PM10 65.6
O3 2.0
Tung Chung
Tung Chung AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 45.6 PM2.5 15.2
SO2 9.8 PM10 20.8
O3 34.7
Yuen Long
Yuen Long AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 66.8 PM2.5 27.3
SO2 11.4 PM10 37.4
O3 11.8
Causeway Bay
Causeway Bay AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 124.1 PM2.5 -
SO2 9.6 PM10 -
O3 3.5
Central
Central AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 141.0 PM2.5 73.7
SO2 11.2 PM10 92.9
O3 2.8
Sha Tin
Sha Tin AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 71.0 PM2.5 32.5
SO2 6.3 PM10 39.9
O3 20.4
Kwun Tong
Kwun Tong AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 78.4 PM2.5 67.0
SO2 5.0 PM10 72.0
O3 15.7
Tseung Kwan O
Tseung Kwan O AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 33.8 PM2.5 59.3
SO2 10.4 PM10 75.3
O3 82.7
Eastern
Eastern AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 93.6 PM2.5 65.0
SO2 5.7 PM10 83.4
O3 38.5
Mong Kok
Mong Kok AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 135.1 PM2.5 64.6
SO2 5.0 PM10 75.9
O3 1.7
Tuen Mun
Tuen Mun AQHI 3
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 77.2 PM2.5 33.9
SO2 15.4 PM10 48.0
O3 7.5
General Station
Roadside Station
Suspended
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
26-04-2017
Tomorrow A.M.
Tomorrow P.M.
General Stations Low to Moderate Low to Moderate
Roadside Stations Moderate 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
19:00 26-04-2017 AQHI Health Risk
General Stations Central/Western 4Link to past 24 hrs AQHI trend Moderate
Eastern 5Link to past 24 hrs AQHI trend Moderate
Kwun Tong 4Link to past 24 hrs AQHI trend Moderate
Sham Shui Po 4Link to past 24 hrs AQHI trend Moderate
Kwai Chung 3Link to past 24 hrs AQHI trend Low
Tsuen Wan 5Link to past 24 hrs AQHI trend Moderate
Tseung Kwan O 5Link to past 24 hrs AQHI trend Moderate
Yuen Long 3Link to past 24 hrs AQHI trend Low
Tuen Mun 3Link to past 24 hrs AQHI trend Low
Tung Chung 3Link to past 24 hrs AQHI trend Low
Tai Po 4Link to past 24 hrs AQHI trend Moderate
Sha Tin 3Link to past 24 hrs AQHI trend Low
Tap Mun 5Link to past 24 hrs AQHI trend Moderate
Roadside Stations Causeway Bay 5Link to past 24 hrs AQHI trend Moderate
Central 5Link to past 24 hrs AQHI trend Moderate
Mong Kok 5Link to past 24 hrs AQHI trend Moderate
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Last revision date:19:08 26-04-2017