EMISSION RATE ANALYSIS OF AGRICULTURAL SOURCES WITH FOURIER-TRANSFORMINFRARED (FTIR) SPECTROSCOPY

A literature review shows the insufficient knowledge of the share of a griculture to the manmade emission of greenhouse or pollutant gases in Germany. This mainly is due to the difficulties in measuring the ofte n diffuse agricultural source types. With FTIR spectroscopy a techniqu e for concentration analyses is introduced that, together with appropr iate methods to determine the volume flow, can be used for nearly all source types. Examples cover the use at point sources (different housi ng systems for laying hens) and at diffuse sources (comparison of slur ry application techniques by their NH3 emission). This article is base d on a presentation of GRONAUER et al. (1997) in the section ''sources and sinks'' of the 109(th) VDLUFA congress in Leipzig, 1997.