Hong Kong's Air Pollution Dashboard

The Hedley Environment Index is a real-time dashboard and Google Map of air pollution in Hong Kong.

The dashboard provides a continually updating estimate of the number of deaths in Hong Kong and the economic loss caused by air pollution in the city. The Google Map shows real-time readings of air pollutant concentration from monitors throughout Hong Kong. The markers on the map are color-coded and sized to reflect the current amount of air pollution at each location.

Users can select individual air pollution monitors on the map to view a historical line graph of the air pollution readings from the chosen monitor.