Gwynns Falls in Baltimore, Md. (image) Cary Institute of Ecosystem Studies Caption Alkalinity trends were observed in large rivers like the Potomac River as well as small streams located in urbanized watersheds, such as the Gwynns Falls in Baltimore, Md. Credit Steward T.A. Pickett, Baltimore Ecosystem Study LTER Usage Restrictions Can be used to promote this press release. 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.