D Barcelo obtained a Ph. D. Full Research Professor at the Institute of Environmental Assessment and Water Studies IDAEA-CSIC (Barcelona, Spain) since 1999 and Director of the Catalan Institute of Water Research (ICRA) (Girona, Spain) since May 2008. From 2009-2015 he was Visiting Professor at King Saud University, Riyadh, Saudi Arabia, 2009-2015. He is Full Professor in Biology at College of Science under Distinguished Scientist Fellowship Programme (DSFP) at King Saud University, Riyadh, Saudi Arabia, since October 2016.

His scientific focus is on the Fate and Risk of Emerging Pollutants such as Pharmaceuticals Nanomaterials and Microplastics in the Environment, Multiple Stressors in Rivers and on the Water Pollution Control and Protection under Scarcity .His expertise is documented by the number of original publications (>1000), an H index of 103, >479000 ISI citations and the supervision of 55 PhD thesis (December 2017).

In 2007 he was awarded the King Jaime I Prize for the Protection of Nature from Generalitat of Valencia, Spain, for his outstanding scientific work. In 2011 he received the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW) 5th Award 2012 on Water Management & Protection, Saudi Arabia, in 2012 the Recipharm Environmental Award, Sweden. and in 2014 a Doctorate Honoris Causa by the University of Ioannina, Greece. Chairman of the Scientific and Technological Board (STB) of the EU-Joint Programming Initiative on “Water challenges for a changing World” during 2011-2015.

From 2013 to 2019 he is the Coordinator of the European Union-funded project: GLOBAQUA. Managing the effects of multiple stressors on aquatic ecosystems under water scarcity. From October 2017-2020 he is the Coordinator of JPI WATER-FACCE project AWARE: Assessing the fate of pesticides and water-borne contaminants in agricultural crops and their environmental risks .

Co-editor-in-Chief of Science of the Total Environment (STOTEN) from Elsevier, since January 1st, 2012.