Airborne Measurements of Ethene from Industrial Sources Using Laser Photo-Acoustic Spectroscopy
Artikel i vetenskaplig tidskrift, 2009

A laser photoacoustic spectroscopy (LPAS) instrument was developed and used for aircraft measurements of ethene from industrial sources near Houston, Texas. The instrument provided 20 s measurements with a detection limit of less than 0.7 ppbv. Data from this instrument and from the GC-FID analysis of air samples collected in flight agreed within 15% on average. Ethene fluxes from the Mt. Belvieu chemical complex to the northeast of Houston were quantified during 10 different flights. The average flux was 520 +/- 140 kg h(-1) in agreement with independent results from solar occultation flux (SOF) measurements, and roughly an order of magnitude higher than regulatory emission inventories indicate. This study shows that ethene emissions are routinely at levels that qualify as emission upsets, which need to be reported to regional air quality managers.

ozone formation

houston

organic-compounds

texas

emissions

Författare

J. A. De Gouw

National Oceanic and Atmospheric Administration

University of Colorado at Boulder

S. T. L. Hekkert

Sensor Sense

Johan Mellqvist

Chalmers, Institutionen för radio- och rymdvetenskap, Optisk fjärranalys

C. Warneke

National Oceanic and Atmospheric Administration

University of Colorado at Boulder

E. Atlas

University of Miami

F. C. Fehsenfeld

University of Colorado at Boulder

National Oceanic and Atmospheric Administration

A. Fried

National Center for Atmospheric Research

G. J. Frost

National Oceanic and Atmospheric Administration

University of Colorado at Boulder

F. J. M. Harren

Radboud Universiteit

J. S. Holloway

University of Colorado at Boulder

National Oceanic and Atmospheric Administration

B. Lefer

University of Houston

R. Lueb

University of Miami

J. F. Meagher

National Oceanic and Atmospheric Administration

D. D. Parrish

National Oceanic and Atmospheric Administration

M. Patel

University of Houston

L. Pope

University of Miami

D. Richter

National Center for Atmospheric Research

Claudia Rivera

Chalmers, Institutionen för radio- och rymdvetenskap, Optisk fjärranalys

T. B. Ryerson

National Oceanic and Atmospheric Administration

Jerker Samuelsson

Chalmers, Institutionen för radio- och rymdvetenskap, Optisk fjärranalys

J. G. Walega

National Center for Atmospheric Research

R. A. Washenfelder

National Oceanic and Atmospheric Administration

University of Colorado at Boulder

P. Weibring

National Center for Atmospheric Research

X. Zhu

University of Miami

Environmental Science & Technology

0013-936X (ISSN) 1520-5851 (eISSN)

Vol. 43 2437-2442

Ämneskategorier

Annan naturresursteknik

DOI

10.1021/es802701a