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Welcome to Environmental Protection Department Air Pollution Index Website

Forecast - Tonight and Tomorrow's Highest General Station 10 to 40 / Low to Medium
Roadside Station 45 to 70 / Medium to High
 
Air Pollution Index at 2012-05-17 20:00
General
Station API Air Pollution Level Contributing Pollutant
Central/Western
29
Medium Nitrogen Dioxide
Eastern
29
Medium Nitrogen Dioxide
Kwai Chung
27
Medium Nitrogen Dioxide
Kwun Tong
25
Low Nitrogen Dioxide
Sha Tin
20
Low Nitrogen Dioxide
Sham Shui Po
34
Medium Nitrogen Dioxide
Tai Po
22
Low Nitrogen Dioxide
Tap Mun
29
Medium Ozone
Tsuen Wan
25
Low Nitrogen Dioxide
Tung Chung
24
Low Nitrogen Dioxide
Yuen Long
24
Low Nitrogen Dioxide
Roadside
Station API Air Pollution Level Contributing Pollutant
Causeway Bay
52
High Nitrogen Dioxide
Central
61
High Nitrogen Dioxide
Mong Kok
64
High Nitrogen Dioxide

Remark:
(1) The API information is based on raw data taken directly from EPD's Air Quality Monitoring Network.
(2) Due to equipment upgrading work at Mong Kok roadside Station on 17 May 2012, reporting of RSP concentration at the station will be temporarily suspended.

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Last revision date: 08:45 PM 17 May 2012