Electrochemically-driven nitrogen pollutants management circular mechanism: sensing, removal, and upcycling (IMAGE) Science China Press Caption This review highlights the essential roles of electrocatalysis in nitrogen management, focusing on sensing harmful nitrogen species, removing pollutants, and electrochemical upcycling for ammonia and urea production. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.