Emissions of volatile organic compounds from cut grass and clover are enhanced during the drying process

The release of volatile organic compounds (VOCs) by drying grass and clover leaves and stems was studied in the laboratory using proton‐transfer chemical‐ionization mass spectrometry, which enables the simultaneous, on‐line monitoring of VOC concentrations. A burst of VOC emissions due to cutting th...

Full description

Saved in:
Bibliographic Details
Published in:Geophysical research letters 1999-04, Vol.26 (7), p.811-814
Main Authors: de Gouw, Joost A., Howard, Carleton J., Custer, Thomas G., Fall, Ray
Format: Article
Language:English
Subjects:
Acetone
Atmospheric ionization
Chemical composition and interactions. Ionic interactions and processes
Drying
Earth, ocean, space
Exact sciences and technology
External geophysics
Formaldehyde
Gas emissions
Mass spectrometry
Meteorology
Methanol
Ozone
Plants (botany)
Vegetation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The release of volatile organic compounds (VOCs) by drying grass and clover leaves and stems was studied in the laboratory using proton‐transfer chemical‐ionization mass spectrometry, which enables the simultaneous, on‐line monitoring of VOC concentrations. A burst of VOC emissions due to cutting the leaves and stems was followed by a second, more intense emission lasting for several hours when the vegetation was starting to dry out. In addition to (Z)‐3‐hexenal, (Z)‐3‐hexenol, and hexenyl acetate, that were emitted by the plant tissue in response to the wounding, enhanced emissions of methanol, acetaldehyde, acetone, butanone, and possibly formaldehyde were observed. These findings may have important implications for regional air quality in agricultural and urban areas.
ISSN:0094-8276
1944-8007
DOI:10.1029/1999GL900076