Slides presented by Massimiliano Drudi, CMCC Foundation, at the Blue-Cloud webinar"Test the Virtual Labs - Marine Environmental Indicators"on 25 May 2022. The objectives of this demonstrator are to: Calculate and distribute online information and indicators on the environmental quality ofthe marine area. Obtain new added-value data applying big data analysis and machine learning methods onmulti-source data sets. Enable users to perform online and on-the-flyoperations, such as selecting a portion of a dataset, to perform statistical analysis or display the data. Test the Virtual Lab