airdata
Airdata is the collection of measurements and datasets that describe the atmosphere’s composition, properties, and dynamics. It includes observations from ground-based air quality monitoring networks, remote sensing from satellites and aircraft, outputs from atmospheric models, and derived products such as air quality indices and trend analyses. Airdata supports public health assessments, environmental policy, weather and climate research, and urban planning.
Key data types include particulate matter (PM2.5 and PM10), ground-level ozone (O3), nitrogen dioxide (NO2), sulfur
Common sources and platforms include national monitoring networks (for example, U.S. EPA AQS; European Air Quality
Applications of airdata include regulatory compliance, health risk assessments, epidemiological studies, climate research, and urban planning.
Challenges include uneven spatial and temporal coverage, sensor calibration and data quality, biases in low-cost sensors,