Impact of residential wood combustion on urban air quality

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Krecl, Patricia,1968-Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM) (författare)

Impact of residential wood combustion on urban air quality

BokEngelska2008

Förlag, utgivningsår, omfång ...

Stockholm :Institutionen för tillämpad miljövetenskap (ITM),2008
40 s.
electronicrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:su-7682
ISBN:9789171556080
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7682URI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:dok swepub-publicationtype

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Wood combustion is mainly used in cold regions as a primary or supplemental space heating source in residential areas. In several industrialized countries, there is a renewed interest in residential wood combustion (RWC) as an alternative to fossil fuel and nuclear power consumption. The main objective of this thesis was to investigate the impact of RWC on the air quality in urban areas. To this end, a field campaign was conducted in Northern Sweden during wintertime to characterize atmospheric aerosol particles and polycyclic aromatic hydrocarbons (PAH) and to determine their source apportionment.A large day-to-day and hour-to-hour variability in aerosol concentrations was observed during the intensive field campaign. On average, total carbon contributed a substantial fraction of PM10 mass concentrations (46%) and aerosol particles were mostly in the fine fraction (PM1 accounted for 76% of PM10). Evening aerosol concentrations were significantly higher on weekends than on weekdays which could be associated to the use of wood burning for recreational purposes or higher space heat demand when inhabitants spend longer time at home. It has been shown that continuous aerosol particle number size distribution measurements successfully provided source apportionment of atmospheric aerosol with high temporal resolution. The first compound-specific radiocarbon analysis (CSRA) of atmospheric PAH demonstrated its potential to provide quantitative information on the RWC contribution to individual PAH. RWC accounted for a large fraction of particle number concentrations in the size range 25-606 nm (44-57%), PM10 (36-82%), PM1 (31-83%), light-absorbing carbon (40-76%) and individual PAH (71-87%) mass concentrations.These studies have demonstrated that the impact of RWC on air quality in an urban location can be very important and largely exceed the contribution of vehicle emissions during winter, particularly under very stable atmospheric conditions.

Ämnesord och genrebeteckningar

NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
residential wood combustion
air quality
aerosols
black carbon
polycyclic aromatic hydrocarbons
particulate matter
particle size distributions
source apportionment
positive matrix factorization
compound-specific radiocarbon analysis
Earth sciences
Geovetenskap
Applied Environmental Science
tillämpad miljövetenskap

Biuppslag (personer, institutioner, konferenser, titlar ...)

Johansson, Christer,Dr.Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM) (preses)
Ström, Johan,Prof.Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM) (preses)
Bond, Tami,Prof.University of Illinois at Urbana-Champaign (opponent)
Stockholms universitetInstitutionen för tillämpad miljövetenskap (ITM) (creator_code:org_t)

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