ACT Air Quality Index and Pollutant Measurements

Ambient air quality monitoring data for the Australian Capital Territory supports the National Environment Protection Measures and a public Air Quality Index. The dataset includes unverified readings for pollutants like PM2.5, PM10, O3, CO, and NO2, along with calculated AQI values for each. It is provided by the ACT government data portal.

Use Cases

• Forecasting daily AQI_PM2.5 and AQI_PM10 levels using historical PM2.5 and PM10 1 hr concentration data.
• Analyzing diurnal patterns of O3_1hr and O3_8hr concentrations against Time and Date fields.
• Correlating CO and NO2 readings with GPS location data to identify pollution hotspots across the ACT.
• Validating instrument readings by comparing raw PM2.5 values with derived AQI_PM2.5 scores.
• Studying seasonal air quality trends by aggregating AQI_O3_1hr and AQI_NO2 data by month from the Date column.

Strengths

• Includes 27 distinct columns covering multiple pollutants and their derived AQI values.
• Provides data in multiple machine-readable formats including CSV, JSON, and XML.

Limitations

• Data is explicitly unverified and may contain errors from instrument failures or calibration changes.
• Sample size, row count, and temporal coverage are unknown, limiting statistical reliability.
• Contains redundant columns (e.g., GPS, GPS (address), GPS (city)), indicating potential data structure issues.

Provenance

Source

www.data.act.gov.au (ACT Government data portal)

Collection Method

Ambient air quality monitoring via stationary sensors, supporting the National Environment Protection Measures.

Freshness

Last updated date is listed as 2026-04-03, which appears to be a future date, casting doubt on recency.

Geography

Australian Capital Territory (ACT), Australia.