| kehra-package | Collect, Assemble and Model Air Pollution, Weather and Health Data |
| fillMissingValues | Fill missing values |
| getSeason | Get season a date belongs to |
| kehra | Collect, Assemble and Model Air Pollution, Weather and Health Data |
| pointInspection | Get data from ECMWF ERA_Interim |
| windDirection | Wind Direction |
| windSpeed | Wind Speed |