Application of scattered sunlight spectroscopy for quantification of gas emissions from anthropogenic and natural sources
Licentiatavhandling, 2007

Monitoring of gas emissions from natural and anthropogenic sources is of importance due to their negative effects on human health, atmospheric quality and ecosystems. Concern over air pollution has increased the need to develop measurement techniques suitable for gas flux determination. Differential Optical Absorption Spectroscopy (DOAS) has been widely used during past decades, is capable of quantifying several molecules simultaneously, provides results in real time with good time resolution, is non invasive, as well as precise and flexible to use in different conditions and environments. In this thesis instruments based on scattered sunlight spectroscopy have been sucessfully used to quantify gas emissions from anthropogenic (refineries, power plants and chemical industries) and natural (volcanoes) sources during several field campaigns. The studied gas species were sulphur and nitrogen dioxides (SO2, NO2) mainly because of their negative effects on human health as well as oxidation capability, formation of sulphuric and nitric acids respectively and further dry or wet deposition. Results of emissions from anthropogenic sources have been compared with available databases. On the other hand the results of emissions from natural sources have been correlated to seismicity in order to improve geophysical understanding of the volcanic system.

anthropogenic sources

gas emission

volcanoes

sulphur dioxide

DOAS

nitrogen dioxide.

scattered sunlight spectroscopy

natural sources

Room EE, Chalmers E-building, floor 6 Hörsalsvägen 11
Opponent: Dr. Mattias Hallquist, Department of Atmospheric Chemistry, Göteborg University, Sweden.

Författare

Claudia Rivera

Chalmers, Institutionen för radio- och rymdvetenskap, Optisk fjärranalys

Ämneskategorier

Annan naturresursteknik

ISBN

1652-9103

Room EE, Chalmers E-building, floor 6 Hörsalsvägen 11

Opponent: Dr. Mattias Hallquist, Department of Atmospheric Chemistry, Göteborg University, Sweden.