You are here:
Organic nitrogen in PM2.5 aerosol at a forest site in the Southeast US
Citation:
Lin, M., J. Walker, C. Geron, AND A. Khlystov. Organic nitrogen in PM2.5 aerosol at a forest site in the Southeast US. Atmospheric Chemistry and Physics. Copernicus Publications, Katlenburg-Lindau, Germany, 10:2145-2157, (2010).
Impact/Purpose:
journal article
Description:
There is growing evidence that organo-nitrogen compounds may constitute a significant fraction of the aerosol nitrogen (N) budget. In this study, the concentration of organic nitrogen (ON) and major inorganic ions in PM2.5 aerosol were measured at the Duke Forest Research Facility near Chapel Hill, NC, during January and June of 2007. A novel on-line instrument was used, which is based on the Steam Jet Aerosol Collector (SJAC) coupled to an on-line total carbon/total nitrogen analyzer and two online ion chromatographs. The concentration of ON was determined by tracking the difference in concentrations of total nitrogen and of inorganic nitrogen (determined as the sum of N-ammonium and N-nitrate). The data presented in this study suggests that ON has a variety of sources, which are very difficult to quantify without information on chemical composition of this important aerosol fraction.
URLs/Downloads:
ORGANIC NITROGEN IN PM2.5 AEROSOL AT A FOREST SITE IN THE SOUTHEAST US
Abstract
NRMRL RTP P 1055.PDF (PDF, NA pp, 6291 KB, about PDF)
Discussion Paper