Harmonized Low-Cost Air Quality Sensor Network Measurements

Ground site air quality measurements collected by the Hannigan Air Quality Pods sensor network. Data is part of an ongoing harmonization effort amalgamating measurements from 10 unique US-based sensor networks into a common open-access framework. The dataset is produced by the LARC_CLOUD organization.

Use Cases

• Validate satellite-derived pollutant concentrations using ground sensor measurements flagged by data quality tier.
• Analyze temporal trends for specific pollutants of interest across different sensor network locations.
• Compare sensor network performance based on embedded metadata regarding calibration efforts and quality flags.
• Model local air quality by searching data based on location, date range, and target pollutant.

Strengths

• Harmonized data from 10 unique US sensor networks provides comparative breadth.
• Data quality tier system and flags help users assess sensor calibration and suitability.

Limitations

• Specific row count, geographic extent beyond the US, and temporal coverage are unknown.
• Data quality is variable across networks and depends on the calibration methods of each contributor.

Provenance

Source

Low-Cost Air Quality Sensor Harmonization Database via NASA Earthdata.

Collection Method

Measurements collected by ground-based Hannigan Air Quality Pods sensor network, reformatted into a common format with embedded metadata.

Time Range

null

Freshness

Data collection is described as ongoing, but last update date is unknown.

Geography

Primarily United States, based on inclusion of 10 US-based sensor networks.