Open Knowledge

Pollutant Emissions / 2014 70% open

Hong Kong

What data is expected?

Aggregate data about the emission of air pollutants especially those potentially harmful to human health (although it is not a requirement to include information on greenhouse gas emissions). Aggregate means national-level or available for at least three major cities. In order to satisfy the minimum requirements for this category, data must be available for the following pollutants and meet the following minimum criteria:

  • Particulate matter (PM) Levels
  • Sulphur oxides (SOx)
  • Nitrogen oxides (NOx)
  • Volatile organic compounds (VOCs)
  • Carbon monoxide (CO)
  • Updated on at least once a week.
  • Measured either at a national level by regions or at leasts in 3 big cities.

What data is available

  •   Openly licensed? No (No URL given)
  •   Is the data available for free? Yes
  •   Is the data machine readable? Yes (CSV)
  •   Available in bulk? Yes
  •   Is the data provided on a timely and up to date basis? Yes
  •   Publicly available? Yes published by Environment Protection Bureau)
  •   Is data in digital form? Yes
  •   Is the data available online? Yes (Here)
  •   Does the data exist? Yes


Web interface allows you to pre-filter the exported CSV on particles / data and geographies.

Air quality Index data (which is based upon the raw data from air quality monitoring network) is available at:

Reviewer comments

after examining the two different sites mentioned in the two submissions, I agree with Mart that the EPD's air quality monitoring network's data feeds are downloadable and available in bulk. I've merge the url mentioned in this submission into comment field of Mart's submission as additional resources.





  • anonymous