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SUMMARY:Ammonia emissions from seabirds - Dr Stuart Riddick (Cambridge)
DTSTART:20140602T131500Z
DTEND:20140602T143000Z
UID:TALK51288@talks.cam.ac.uk
CONTACT:Dr Amanda Maycock
DESCRIPTION:Significant amounts of nitrogen are deposited on to land in va
 rious forms of excreta and the subsequent volatilization may result in sub
 stantial emissions of atmospheric ammonia (NH3). As a model system\, the g
 lobal NH3 emission of seabirds was calculated to examine the effects of cl
 imate on NH3 volatilization. To do this\, a contemporary seabird database 
 was used in conjunction with a seabird NH3 model (GUANO) to estimate NH3 e
 missions from seabirds in a range of climates.  Field measurements of NH3 
 emissions at seabird colonies in various climates were used to validate mo
 del output.  The results present a range of excreted nitrogen that volatil
 izes (Pv) of 0.4 % to 70.6 % in response to climatic differences.  This mo
 del is further developed to estimate NH3 emission from agricultural animal
  manure and to characterize the effect of climate on Pv globally.
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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