Harmonized Air Quality Sensor Data from Ten U.S. Networks

Ten unique U.S.-based low-cost air quality sensor networks provide ground site measurements harmonized into a common format. The Smart and Trustworthy AIR quality network (STAIR) project, managed by LARC_CLOUD, collects and reformats this data with embedded metadata and quality flags. Data collection is ongoing.

Use Cases

• Validate satellite-derived pollutant concentrations using ground sensor measurements and associated data quality flags.
• Analyze temporal trends in specific pollutants of interest by filtering the database by date range and pollutant type.
• Compare sensor performance and calibration levels across different networks using the embedded tier system and metadata.
• Assess spatial patterns of air quality by searching and aggregating data based on sensor location.

Strengths

• Data from 10 unique sensor networks provides multi-source validation.
• Includes a tiered quality system with data quality flags based on calibration reviews.

Limitations

• Specific sample size, temporal range, and geographic extent outside the U.S. are unknown.
• Data quality is variable and dependent on the calibration level of each contributing sensor network.

Provenance

Source

LARC_CLOUD as part of the Low-Cost Air Quality Sensor Harmonization Database.

Collection Method

Measurements amalgamated from multiple low-cost sensor networks, reformatted into a common format with embedded metadata.

Time Range

null

Freshness

null

Geography

United States.