Figure 1. Topography of the Bohai Sea (image) Science China Press Share Print E-Mail Caption This is the topography of the Bohai Sea (depth in meters) and routine monitoring stations for total nitrogen in 2009. The size of each dot indicates TN concentration. Credit ©Science China Press Usage Restrictions None Share Print E-Mail 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.