Harmonized Low-Cost Air Quality Sensor Measurements from US Networks

Ground site air quality data collected by the Real-Time Multi-Pollutant sensor network. Measurements are amalgamated from 10 unique US-based sensor networks into a common open-access format with embedded metadata. Data collection for this product is ongoing.

Use Cases

• Validate satellite-derived air pollution estimates using harmonized ground sensor measurements.
• Analyze temporal trends in pollutant concentrations using the common time-series data format.
• Assess data quality for specific applications using the embedded tier system and data quality flags.
• Model local air quality by filtering sensor data based on location, date range, and pollutant of interest.
• Compare calibration methodologies across different sensor networks using the framework's critical review criteria.

Strengths

• Data from 10 unique US-based sensor networks provides multi-source coverage.
• A tier system with data quality flags helps users select appropriate data for their application.
• Common data format with embedded metadata streamlines processing and comparison.

Limitations

• Specific row count, column details, and sample size are unknown.
• Geographic coverage is currently limited to United States-based networks.
• Data quality is variable and dependent on each network's calibration efforts.

Provenance

Source

NASA Earth Data (LARC_CLOUD), part of the Low-Cost Air Quality Sensor Harmonization Database.

Collection Method

Measurements collected by the Real-Time Multi-Pollutant sensor network and reformatted from 10 US networks into a common framework.

Time Range

null

Freshness

Data collection is described as ongoing.

Geography

United States