Hong Kong Air Quality Monitoring Network

The Hong Kong Air Quality Monitoring Network monitors the following particles and gasses at 16 stations: Carbon Monoxide, Fine Suspended Particulates, Nitrogen Dioxide, Nitrogen Oxides, Ozone, Respirable Suspended Particulates and Sulphur Dioxide. The Hong Kong Air Quality Index (https://www.aqhi.gov.hk/tc.html) is based on measurements from this system.