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The use of lasers to monitor air pollution either in stacks or in the ambient air is quite common. The process relies on the fact that wavelengths of light can be reflected or absorbed by various chemicals in the air (hydrocarbons and hydrogen sulfide for example). The more of the gas present in the sample, the stronger the reflection or adsorption.
In stacks this generally requires the beam to be passed through the gas flow from a laser installed at one port and observed at a port opposite to it. In open air the beam is often directed at a receiver or reflected from a mirror to the transmitting laser for analysis.
In the lab, air can be collected in plastic bags and the contained gases to be spectroscopically analyzed by ordinary spectroscopic analysis equipment or by gas chromatography.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoTo identify functional groups, then match spectrum to known pollutants and you can measure concentration or abundance of pollutant.
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What are some importance of infrared waves?
More applications of infrared light are: fiber optic communication, noncontact remote temperature measurement, homing missiles (e.g. AIM-9 Sidewinder air to air missile, AIM-132 Advanced Short Range Air-to-Air Missile), IrDA computer peripheral interface, TV remote controls, weather satellites, astronomy, art preservation and analysis, etc.
Is air pollution cause landslides?
no air pollution does not cause landslides
How is ozone layer releted to air pollution?
Ozone layer is related to air pollution. It causes pollutants in the air.
What are the three main characteristic of a population?
Water Pollution Air pollution Voice Pollution
What are two types of pollution associated with the mining of mineral resources?
water pollution and Air pollution
What has the author D C Girvin written?
D. C Girvin has written: 'On-line Zeeman atomic absorption spectroscopy for mecury analysis in oil shale gases' -- subject(s): Mercury, Atomic absorption spectroscopy, Air, Analysis, Pollution
What is the purpose to air monitoring stations?
The purpose of air monitoring stations is to measure and monitor the quality of air in a specific area. These stations collect data on various pollutants and provide information on air quality to the public and relevant authorities. The data from these stations helps in understanding the presence and levels of pollutants, identifying sources of pollution, and implementing measures to improve air quality and protect public health.
What has the author Michael J Pearson written?
Michael J. Pearson has written: 'Western energy sulfate/nitrate monitoring network progress report' -- subject(s): Air, Pollution, Air quality monitoring stations, Acid rain, Measurement
What has the author Tom Furmanczyk written?
Tom Furmanczyk has written: 'National urban air quality trends 1981-1990' -- subject(s): Air, Air quality, Environmental monitoring, Measurement, Pollution, Urban ecology 'National urban air quality trends, 1974-1985' -- subject(s): Air quality, Environmental monitoring
What has the author Ralph M Riggin written?
Ralph M Riggin has written: 'Technical assistance document' -- subject(s): Air, Pollution, Air quality monitoring stations, Standards
What has the author J Suggs written?
J. Suggs has written: 'Precision and accuracy assessments for state and local air monitoring networks, 1987' -- subject(s): Air, Air quality management, Pollution, Measurement
What is air pollution and WHAT ARE the types of air pollution?
air pollution is a ecological balance
What is the difference between air pollution and pollution?
air pollution is related to air specialy but in pollution we include all type of pollution like water , noise, air pollution
Where is the most air pollution?
air pollution travels in the air
What has the author Daiva E Edgar written?
Daiva E. Edgar has written: 'The use of continuous emissions monitoring to track, record, and report criteria pollutant emissions' -- subject(s): Air, Pollution, Continuous emission monitoring, Measurement
What has the author R J Reimann written?
R. J. Reimann has written: 'Optical atmospheric monitoring' -- subject(s): Air, Measurement, Optical methods, Pollution
What is the meaning of water and air pollution?
water pollution: polluting water air pollution: polluting air
