TROPOMI data is open and available for scientific and educational data user communities throughout the world. All TROPOMI data is available via the ESA Copernicus Open Access Hub which is portal to all Sentinel data. To access S5P/TROPOMI data then follow this link to the 'Sentinel-5P Pre-Operations Hub'.
We encourage the use of the TROPOMI data as such a brief overview handout is available to explain what TROPOMI data is available, where to get it, and how to use the data from TROPOMI. Also, be sure to check the documents section of this site to view related documentation for Calibration, Level 0-1b, and Level 2 data products. We always appreciate feedback about the data so if you have comments or questions be sure to contact: EOSupport [at] Copernicus.esa.int