Low Cost Sensors AQ AirGradient Data

Low-Cost-Sensors-AQ_AirGradient is the ground site data collected by the AirGradient sensor network as part of the Low-Cost Air Quality Sensor Harmonization Database. Data collection for this product is ongoing.

The Low-Cost Sensor AQ Harmonization aims to harmonize sensor networks by amalgamating measurements from a multitude of networks into one open access framework. Currently, data from 10 unique US-based sensor networks have been collected for redistribution in the archive. Data from each network is reformatted in a common data format with metadata embedded to streamline data processing. A key feature is a tier system in which the team critically reviews each sensor network by their calibration efforts and subsequent data quality, providing data quality flags to help end users determine which sensor data best meets their target application. The framework allows users to search based on calibration criteria in addition to location, date range, and pollutant of interest. The sensor database is aimed at scientific end users seeking ground-based validation data for satellites and models alike but is also accessible to community scientists. The team is currently accepting new submissions! If you maintain a sensor network that you would like included, please contact the PI (kristen.e.okorn@nasa.gov).

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 05:46 (UTC)
Created August 18, 2026, 03:52 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 7e20c780-a04b-42e2-a557-a0bc3b13c260
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/Low-Cost-Sensors-AQ/AirGradient
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:04Z
programCode {026:000}
publisher NASA/LARC/SD/ASDC
resource-type Dataset
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source_hash bbe6ceca2b29588ed9078b5760535b89b1678236ec55d0f59b84215b863df8fa
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spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 64.15, "WestBoundingCoordinate": -149.91, "EastBoundingCoordinate": 175.93, "SouthBoundingCoordinate": -84.34}]]
temporal 2019-11-08/2026-09-07
theme {"Earth Science"}