Case Study Terpenes analysis0 pages

Case Study N°AA5 – Ambient air monitoring – Terpenes – updated: 19.10.15

Case Study
Ambient Air Monitoring Applications

Low level measurement of VOCs and Terpenes close to the
sea and the Landes Forest
Context & Challenges
It has been established that organic aerosol (OA) makes up for a major
fraction of fine particulate matter in all region of the atmosphere. This
fraction accounts approximately for half of the total PM2.5 dry mass. 1,2
Primary OA is directly emitted in the troposphere from anthropological
and natural sources whereas secondary OA (SOA) is formed in-situ in
the atmosphere from the oxidation of biogenic or anthropogenic gasphase precursors and subsequent partitioning of the less volatile
products into the particle phase.
The current number is that, on a global scale, SOA would represent around 60%
of the overall OA.3 However, recent global mass-balance estimations for the
removal of volatile organic compounds (VOC) suggest that this number could
under-predicts SOA production.4 Recent field measurements in urban locations are
also in support of a larger share, indicating that SOA is the dominant fraction of
OA, with amounts considerably 20 greater than models predictions.

Chromatotec® Solutions
Chromatotec® proposes its airmoVOC C6-C12 analyzer dedicated to VOCs
including Terpenes measurement (alpha-pinene / beta-pinene/ myrcene /
3-carene / limonene) at very low concentration (low ppt).

airmoVOC C6-C12 in ppt configuration
Trap configuration with thermodesorption
Sampling volume: 400 mL can be increased for higher sensitivity
Unbreakable metallic column with temperature gradient
Flame Ionisation Detector (FID)
Automatic results validation & calibration with embedded permeation
tube.

sales@chromatotec.com
www.chromatotec.com

1. Kanakidou et al.
Atmos. Chem. Phys., 5 2005
2. Haddad et al.
Atmos. Chem. Phys. Discuss., 2010
3. Kanakidou et al.,
Atmos. Chem. Phys., 2005
4. Goldstein and Galbally,
Environ. Sci. Technol., 2007