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Conifer monoterpene...
Conifer monoterpenes emitted to air by logging operations
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- Hvitt Strömvall, Ann-Margret, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Petersson, Göran, 1941 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 1991
- 1991
- Engelska.
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Ingår i: Scandinavian journal of forest research. ; 6, s. 253-258
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Abstract
Ämnesord
Stäng
- Concentration levels in air were determined for monoterpenes emitted from forestry operations in south-west Sweden. Field samples were collected on Tenax cartridges and analyzed in the laboratory by techniques based on gas chromatography. Processing of Scots pine as well as Norway spruce with a harvestor gave rise to about 1000 microgram/m3 of total monoterpenes near the machine. The corresponding levels above fresh branch wood were 100-500 microgram/m3. The background level was around 1 microgram/m3. The major monoterpenes were alpha-pinene and 3-carene from Pinus sylvestris and alpha-pinene and beta-pinene from Picea abies. Compounds constituting 1-10 % each of the total monoterpenes were camphene, 3-carene, limonene, beta-phellandrene and myrcene for spruce and camphene, beta-pinene, limonene, beta-phellandrene, myrcene and terpinolene for pine. Representative percent compositions for the two species are given for 13 monoterpenes. Photo-oxidant formation from the monoterpenes is discussed with respect to potential local contributions to strain and damage of the forests. Possible preventive measures are suggested.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Jordbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Agricultural Science (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- avverkning
- gran
- tall
- barrskog
- gaskromatografi
- luftförorening
- terpener
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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