LaPorte Ground Site Measurements
Statement of Work
GC/MS Measurements of VOCs
Tom Jobson, NOAA Aeronomy Lab
Measurements of VOCs will be made once an hour with the aim to gather information on
- C4-C11 hydrocarbon mixing ratios (various alkanes, alkenes, and aromatics)
- Role of halogen atom chemistry from industrial emissions. Specific photoproducts of Cl and Br reactions with alkenes will be measured. (i.e. chloroacetone and bromoacetone, others)
- Parent / product relationships. Measurements of precursor alkane and corresponding photoproducts for a few selected species will be made. Photoproduct species include carbonyl compounds and alkylnitrates.
- We will also try to identify and measure compounds specific to particular petrochemical plants, in particular the large olefin emitters.