Yapei Zhang ’14


Molecular Biology

Project Title

Nitrogen Species within the Marine Atmosphere of Bermuda

Presentation Link

View Yapei's Presentation

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.

Internship Year


Project Category

Climate and Energy


Bermuda Institute of Ocean Sciences, Bermuda


Andrew Peters, Bermuda Institute of Ocean Sciences; Katye Alteri, Visiting Fellow, ­Postdoctoral Research Associate, Geosciences