This folder contains open City Scanner data sets collected in four deployments in three cities. Raw sensor readings were collected and calibrated following standardized air sensor performance evaluation guidelines recommended by the U.S. EPA. The general method is presented in the following diagram and details can be found in the open source calibration handbook.
Figure. Data post-processing and validation protocols
Detailed information about the deployments and data files is included in he following table. In total, there are eight data files. Given that the second pilot in NYC contains a huge amount of data, its full dataset is divided into five sections. A data descriptor is also included.
Table. Deployments and open data sets
| City | Sensing target pollutants | Sensing fleet | Duration |
|---|---|---|---|
| New York City, US | Particulate matter, particle size distribution, NO2 | Five municipal vehicles | Jan. 2020 - Feb. 2020; Sep. 2021 - Dec. 2021 |
| Boston, US | Particulate matter, particle size distribution, NO2 | One mobile air laboratory | Feb. 2022 - Apr. 2022 |
| Beirut, Lebanon | Particulate matter, particle size distribution | Two taxis | Feb. 2022 - Jun. 2022 |