Eight Communities Studied (IMAGE) University of Southern California Caption 'Because of the wide variations in ambient pollution levels among the eight California communities we analyzed, these findings are applicable to other parts of the United States and maybe other parts of the world as well,' lead researcher Kiros Berhane said, adding the results could help with asthma management and the overall respiratory health of children. Credit (Wendy Gutschow/USC) Usage Restrictions Please use credit information. License Licensed 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.