Toxic Air Pollutant Concentration
Since July 1997, specialized monitoring equipment was installed at Tsuen Wan and Central/Western stations to regularly measure the levels of Toxic Air Pollutants (TAPs) and Persistent Organic Pollutants (POPs) in Hong Kong.
Monitoring data of dioxin
Monitoring data of dioxin
Dioxin Concentration
Monitoring data of POPs
POPs Concentration
Monitoring data of other TAPs can be downloaded below:
Monitoring data of POPs
POPs Concentration
Monitoring data of other TAPs can be downloaded below:
| Summary of Toxic Air Pollutants Concentration in the past five years |
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| TAP Concentration 2025 |
| TAP Concentration 2024 |
| TAP Concentration 2023 |
| TAP Concentration 2022 |
| TAP Concentration 2021 |