Sentinel 5P NO2 Tropospheric vertical column data mapping

[mayurichetia]

I have downloaded Sentinel 5P NO2 Tropospheric vertical column data through the Google earth engine (GEE) code editor platform. The datasets have negative values in micromol per square meter (μmol/m-2). after mapping the dataset and converting the data from micro mol per square meter (μmol/m-2) to Dobson Unit(DU), some areas show negative values of NO2 with a minimum starting from -0.035. So, I have a query on is the datasets are correct, which I have extracted through coding in GEE and what the negative Du value means, and what we can evaluate from the map having negative tropospheric vertical column NO2 DU value regions. I would appreciate your assistance in identifying my mistakes in the process.

[GES DISC - mgreene]

Thank you for your interest in Sentinel data. We are looking into your post and will get back to you soon.