A QUANTITATIVE INFRARED SPECTRAL DATABASE OF HAZARDOUS AIR-POLLUTANTS

Open-path monitoring of the atmosphere using Fourier transform infrare d spectrometry has recently become a useful real-time in situ analytic al technique. The U.S. Environmental Protection Agency (EPA) is curren tly formulating Method TO-16, a protocol for infrared remote sensing o f the hazardous air pollutants (HAPs) identified in EPA's Clean Air Ac t of 1990. To support infrared based sensing technologies, the Nationa l Institute of Standards and Technology (NIST) is currently developing a standard quantitative spectral database of the HAPs based on gravim etrically prepared samples. This paper presents the protocol used to p repare the gravimetric mixtures and initial results.