Industrial emission control using lidar techniques

Article Abstract:

A mobile differential absorption lidar (DIAL) remote sensing system was used to measure sulfur dioxide and mercury vapor emissions at nine industrial plants in Sweden. The total atmospheric fluxes of the two pollutants were computed based on wind data and mapping of their concentration distribution downwind of the sources. The emission values taken from these measurements were compared with values measured in situ by the companies involved. Values taken from single point sources correlated well, but total flux as measured by the DIAL system were generally higher. The applicability of the DIAL system for remote monitoring of industrial emissions is discussed.

Methods, Sweden, Remote sensing, Mercury, Mercury (Metal), Sulfur dioxide

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Emission factors for ethene and ammonia from a tunnel study with a photoacoustic trace gas detection system

Article Abstract:

The concentrations of ethene and ammonia in ambient air were determined through measurement of the emissions of motor vehicles at the Gubrist Tunnel in Zurich, Switzerland between June 7 and July 4, 1995. The presence of ethene and ammonia were detected in the tunnel air based on their 12C16O2 laser photoacoustic absorption wavelengths. The average emission concentration for ethene was 0.026 +/-0.003 g/km and 0.015+/-0.004 for ammonia.

Motor vehicles, Ammonia, Waste gases, Tunnels

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Application of elastic lidar to PM10 emissions from agricultural nonpoint sources

Article Abstract:

Light detection and ranging (lidar) has been proven to be a potentially effective means of measuring PM10 emissions from agricultural nonpoint sources. Lidar enables the description and modelling of plume dynamics, measurement of average wind speed and direction, quantitative sampling of dust missed by point sampling arrays and the generation of temporal and spatial information on nonpoint source emission variability.

Research and Development in the Physical, Engineering, and Life Sciences, Waste Management and Remediation Services, Air Pollution Control R&D, Analytical Laboratory Instrument Manufacturing, Analytical instruments, Misc Gaseous Pollutants, Photometric Instruments NEC, Research, Equipment and supplies, Environmental monitoring, Air pollution, Air pollution research, Pollution control research, Gaseous pollutants, Agricultural wastes, Photometers

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