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Quantification of Gas Emissions from Refineries, Gas Stations, Oil Wells and Agriculture using Optical Solar Occultation Flux and Tracer Correlation Methods

Johan Mellqvist (Institutionen för rymd- och geovetenskap, Optisk fjärranalys) ; Jerker Samuelsson ; Marianne Ericsson ; Samuel Brohede ; Pontus Andersson ; John Johansson (Institutionen för rymd- och geovetenskap, Optisk fjärranalys) ; Oscar Isoz ; Laki Tisopulos ; Andrea Polidori ; Olga Pikelnaya
AGU Fall meeting San Francisco Dec 2016 A13N-02, (2016)
[Konferensbidrag, övrigt]

Industrial volatile organic compound (VOC) emissions may contribute significantly to ozone formation. In order to investigate how much small sources contribute to the VOC concentrations in the Los Angeles metropolitan area a comprehensive emission study has been carried out on behalf of the South Coast Air Quality Management District (SCAQMD). VOC emissions from major sources such as refineries, oil wells, petrol stations oil depots and oil platforms were measured during September and October 2015 using several unique optical methods, including the Solar Occultation Flux method (SOF) and tracer correlation technique based on extractive FTIR and DOAS combined with an open path multi reflection cell. In addition, measurements of ammonia emissions from farming in Chino were demonstrated. The measurements in this study were quality assured by carrying out a controlled source gas release study and side by side measurements with several other techniques. The results from the field campaign show that the emissions from the above mentioned sources are largely underestimated in inventories with potential impact on the air quality in the Los Angeles metropolitan area. The results show that oil and gas production is a very significant VOC emission source. In this presentation the techniques will be discussed together with the main results from the campaign including the quality assurance work.

Denna post skapades 2017-01-19. Senast ändrad 2017-01-19.
CPL Pubid: 247443


Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Optisk fjärranalys (2010-2017)


Hållbar utveckling
Geovetenskap och miljövetenskap

Chalmers infrastruktur