Air quality in Tai Po District, Hong Kong, China today
Mr. Duck’s Air Quality Score
Moderate air today for Tai Po District, Hong Kong, China
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Tai Po District is currently classified as Moderate. The primary pollutant identified for today is PM2.5 (fine particles).
Measurements show a PM2.5 reference value of 11.1 and a PM10 reference value of 15.6, based on five valid observations reported through OpenAQ. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The dataset for Tai Po District draws on a single monitoring station that reports five key air‑quality constituents: nitrogen dioxide, ozone, particulate matter ≤ 10 µm (PM10), particulate matter ≤ 2.5 µm (PM2.5) and sulfur dioxide. Each pollutant has one recorded value, so the minimum, median and maximum are identical for every metric. Nitrogen dioxide registers at 42.4 µg/m³, ozone at 24.0 µg/m³, PM10 at 15.6 µg/m³, PM2.5 at 11.1 µg/m³ and sulfur dioxide at 3.8 µg/m³. Because there is only one row of data, the spread (the difference between the 10th‑percentile and 90th‑percentile) is zero for all five substances.
All measurements were last refreshed on 2026‑02‑10 at 22:00 UTC, which places every datum within a three‑day freshness window. The overall dataset therefore reflects very recent conditions, but the limited station count means it captures only the air quality at a single point in Tai Po rather than a broader spatial picture across the district. Because each pollutant is represented by just one observation, there is no variation to describe trends or day‑to‑day changes; the reported values are both the typical and extreme readings for this snapshot.
In practical terms, users should note that the coverage is narrow—one monitoring location supplying five pollutants—and that while the timestamps are current, the lack of multiple stations or repeated measurements means the data cannot illustrate how air quality might differ elsewhere in Tai Po or evolve over time.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data shown for Tai Po District is based on five valid measurements and was updated within 3 days, with the latest refresh recorded at 2026‑02‑10 22:00 UTC. This snapshot reflects conditions captured by those sensors at that time; air quality can vary across different locations and moments within the district, so current levels may differ from what is displayed here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Tai Po | no2 | 42.4 | µg/m³ | 2026-02-10 22:00 UTC |
| Tai Po | o3 | 24.0 | µg/m³ | 2026-02-10 22:00 UTC |
| Tai Po | pm10 | 15.6 | µg/m³ | 2026-02-10 22:00 UTC |
| Tai Po | pm25 | 11.1 | µg/m³ | 2026-02-10 22:00 UTC |
| Tai Po | so2 | 3.8 | µg/m³ | 2026-02-10 22:00 UTC |