NSF Org:	AGS Division of Atmospheric and Geospace Sciences
Recipient:	UNIVERSITY OF CALIFORNIA IRVINE
Initial Amendment Date:	August 24, 2001
Latest Amendment Date:	August 24, 2001
Award Number:	0097573
Award Instrument:	Standard Grant
Program Manager:	Anne-Marie Schmoltner AGS  Division of Atmospheric and Geospace Sciences GEO  Directorate for Geosciences
Start Date:	August 15, 2001
End Date:	July 31, 2005 (Estimated)
Total Intended Award Amount:	$287,694.00
Total Awarded Amount to Date:	$287,694.00
Funds Obligated to Date:	FY 2001 = $287,694.00
History of Investigator:	Barbara Finlayson-Pitts (Principal Investigator) bjfinlay@uci.edu
Recipient Sponsored Research Office:	University of California-Irvine 160 ALDRICH HALL IRVINE CA  US  92697-0001 (949)824-7295
Sponsor Congressional District:	47
Primary Place of Performance:	University of California-Irvine 160 ALDRICH HALL IRVINE CA  US  92697-0001
Primary Place of Performance Congressional District:	47
Unique Entity Identifier (UEI):	MJC5FCYQTPE6
Parent UEI:	MJC5FCYQTPE6
NSF Program(s):	Atmospheric Chemistry
Primary Program Source:	01000102DB NSF RESEARCH & RELATED ACTIVIT
Program Reference Code(s):	1309, EGCH
Program Element Code(s):	152400
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

This project is investigating the heterogeneous chemistry of reactive nitrogen species at the air-water interface. Laboratory studies will be conducted to elucidate the elementary processes associated with the reaction of HNO3 with NO on various 'wet' solids, which are model components of dust particles in the atmosphere. The production of HONO and other reaction products will be measured. The reaction of HNO3 on ice surfaces with NO will also be investigated to determine if this could be the source of HONO that has recently been measured in the Arctic, which appears to be coming at least in part from the snowpack. The results could have significant implications for modeling the global production of nitrogen oxides and ozone.

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