Air quality in Taoyuan City, Taiwan today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Taoyuan City, Taiwan

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Taoyuan City is classified as USG today. The primary pollutant identified is PM2.5, with a measured concentration of 43.21 µg/m³. In addition, the PM10 level is recorded at 49.0 µg/m³.

A total of 42 valid measurements contributed to this assessment, and the data are shown via 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

Taoyuan City’s OpenAQ feed contains data from 77 recent measurements taken at 13 monitoring sites, covering carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter of three size fractions (PM1, PM2.5, PM10), sulfur dioxide (SO₂), relative humidity and temperature. The most recent timestamp across all pollutants is 2026‑02‑10 23:00 UTC, and every pollutant listed shows a “Updated within 7 days” flag, indicating that the latest values are at most a week old. However, five rows are still classified as unknown in terms of freshness, so not every location has a fully current reading.

The data set shows considerable variation in both concentration ranges and coverage. For PM2.5 the median value is 21.5 µg/m³ with observations spanning from near zero up to 43.2 µg/m³; the 10th‑percentile sits at 10.3 µg/m³ while the 90th‑percentile reaches 34.1 µg/m³, illustrating a broad spread across the city. CO measurements range from 0.13 ppm to 0.83 ppm (median 0.42 ppm), and NO₂ varies between 0.0026 ppm and 0.036 ppm (median 0.024 ppm). Ozone values are low, with a minimum of 0 ppm and a maximum of 0.0536 ppm; the median is 0.011 ppm and many stations report zero at the time of sampling. Particulate matter larger than 10 µm (PM10) shows a tighter band, from 17 µg/m³ to 49 µg/m³ (median 28 µg/m³). Sulfur dioxide is present in small amounts, ranging from 0.0012 ppm to 0.0043 ppm (median 0.0016 ppm).

Two pollutants have notably fewer reporting stations: PM1 and relative humidity each come from only two rows, both located at National Central University, with PM1 values between 0 µg/m³ and 27.66 µg/m³ (median 13.83 µg/m³) and humidity ranging from 38 % to 64 % (median 51 %). Because of this limited spatial coverage, city‑wide averages for these two variables may not reflect conditions elsewhere in Taoyuan. Overall, while most pollutants have recent data across many sites, the uneven distribution of stations and a handful of older or unknown entries mean that local air quality can still differ noticeably by neighbourhood and time of day.

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 Taoyuan City is based on 42 valid measurements and was refreshed recently, Updated within 3 days (last update: 2026‑02‑10T23:00:00+00:00). This snapshot reflects conditions at the time of collection; however, air quality can vary across different neighborhoods and change throughout the day, so values may differ from what you experience in other parts of the city.

OpenAQ station rows