IR Camera (HAWK/GasFindIR)

VOC leaks appear as dark clouds (colors can be

reversed).

The IR Camera is an excellent and relatively inexpensive tool for finding

leaking organic gases, however it cannot quantify the emission rate.

IR CameraAlex Cuclis

Houston Advanced Research Center

1/2 mile

Differential Absorption LIDAR (DIAL)

DIAL does not require mirrors. Laser light reflects

off of particles in the air and returns to the

detector.

DIAL quantifies emissions with

wind speed and a vertical concentration

map.

DIALAlex Cuclis

Houston Advanced Research Center

Note that many emissions are far

above ground level.

Solar Occultation Flux (SOF)

Texas City Industrial Complex

SOF uses the sun as its light source to a mobile FTIR

detector mounted in a van.

SOFAlex Cuclis

Houston Advanced Research Center

Texas City Industrial Complex

SOF “Box”

Solar Occultation Flux (SOF)SOF uses the sun as its light

source to a mobile FTIR detector mounted in a van.

SOF quantifies emissions with

wind speed and a material

balance around the “SOF Box”.

SOFAlex Cuclis

Houston Advanced Research Center