Yapei Zhang ’14
Nitrogen Species within the Marine Atmosphere of Bermuda
My internship this summer at the Bermuda Institute of Ocean Sciences was part of a larger collaborative project to better understand how anthropogenic nitrogen fixation affects nitrogen deposition in the North Atlantic Ocean. My project focused on isolating a valid method for the collection and storage of rain and aerosol samples deposited over the island of Bermuda in order to obtain the best signal-to-noise ratio for determining the true concentrations of specified ions. In order to achieve this, event-based rain samples were collected over the period of 12 weeks. Each sample collection was divided into portions and each portion was subsequently subjected to a different set of treatment and storage methods. Each treated portion was then analyzed on the ion chromatography,an instrument that measures specific ion concentrations in the sample. These obtained concentration values were subsequently compared to determine the best method for sample preservation. A similar set of tests was also conducted for dry aerosol deposition samples.
Climate and Energy
Bermuda Institute of Ocean Sciences, Bermuda
Andrew Peters, Bermuda Institute of Ocean Sciences; Katye Alteri, Visiting Fellow, Postdoctoral Research Associate, Geosciences