Air quality in Nelson, Nelson, New Zealand today

Mr. Duck’s Air Quality Score

Good air today for Nelson, Nelson, New Zealand

⚠️ 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 Nelson today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 reference value is 0.0 µg/m³ and five valid measurements were recorded for this assessment.

Overall conditions indicate that particulate levels are within the range reported by OpenAQ for Nelson. 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 Nelson pulls information from six recorded rows, all coming from a single monitoring site at Tahunanui. It currently provides values for six pollutants: PM1, PM10, PM2.5, relative humidity, temperature and the particle count UM003. The most recent measurements were taken on 2026‑02‑10 22:00 UTC for five of those variables, showing that the data are generally up‑to‑date. The exception is PM10, whose latest entry dates back to 2025‑01‑13 23:00 UTC, indicating a gap of more than a year for that particular metric.

All six pollutants show a single recorded value rather than a range, because each has identical minimum, median and maximum figures across the available rows. PM1, PM2.5 and UM003 are all reported as zero or near‑zero at the time of measurement (PM1 0.0 µg/m³, PM2.5 0.0 µg/m³, UM003 61.62 particles/cm³). PM10 is recorded at 0.158 µg/m³, while relative humidity stands at 36.95 % and temperature at 27.53 °C. Because the dataset contains only one site, it does not capture spatial variation across Nelson; conditions elsewhere in the city may differ from those observed at Tahunanui.

Overall, the data set is small but fairly fresh for most pollutants, with five of six variables updated within the last week. The older PM10 record highlights uneven coverage among the measured substances, and the single‑site approach means that broader city‑wide air quality patterns cannot be inferred from these numbers alone.

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 current dataset for Nelson includes five valid measurements and is updated within 3 days, with the latest values recorded at 2026‑02‑10T22:00:00+00:00. These figures provide a recent snapshot of ambient air quality across the city, but conditions can differ by neighbourhood and change throughout the day, so local variations may not be fully captured in this summary.

OpenAQ station rows