Andrea worked on the metno/pyaerocom repository, delivering a feature that standardized atmospheric data units and expanded variable categorization to improve data quality and analytical consistency. Using Python and INI configuration, Andrea aligned units from kg m-2 s-1 and kg m-2 to mg m-2 d-1 and mg m-2, ensuring uniformity across datasets. The update also introduced new category types for surface emissions and column burden, enhancing the representation of atmospheric variables for downstream analysis and visualization. The work focused on data configuration and unit standardization, providing a solid foundation for more accurate reporting and cross-variable comparisons in future workflows.