No worries. I worked in the IT world for over six years, I feel your pain.
I did a little searching for info on using spectroscopy to analyze the atmosphere and found that Carnicom was talking about it back in 2000.
http://www.carnicom.com/spectra1.htm
Is he unaware or just lying about the presence of barium in the atmosphere? Along with natural vectors, burning coal and petroleum fuels releases barium into the atmosphere, as well as strontium among other things. Did he ever complete that "study" and if so, what were the results? A certain amount of barium in the air is natural and expected.
http://www.inchem.org/documents/ehc/ehc/ehc107.htm
cheers