Biogenic VOC emissions from fresh leaf mulch and wood chips of Grevillea robusta (Australian Silky Oak) |
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| Institution: | 1. School of Applied Sciences, RMIT University, GPO Box 2476V, Melbourne, Vic. 3001, Australia;2. CSIRO Marine and Atmospheric Research, PMB 1 Aspendale, Vic. 3195, Australia;1. University of Helsinki, Department of Chemistry, Laboratory of Analytical Chemistry, P.O. Box 55, FI-00014 University of Helsinki, Finland;2. University of Helsinki, Department of Physics, Division of Atmospheric Sciences, P.O. Box 64, FI-00014 University of Helsinki, Finland;1. University of Milan, Department of Agricultural and Environmental Sciences – Production, Landscape, Agroenergy, via Celoria 2, 20133 Milan, Italy;2. USDA Forest Service, Center for Bottomland Hardwoods Research, Southern Hardwoods Laboratory, 432 Stoneville Road, Stoneville, MS 38776-0227, United States;1. CIRAD, UPR GECO, PS4, Boulevard de la Lironde, 34398 Montpellier Cedex 5, France;2. CIRAD, UPR GECO, Station de Neufchâteau, Sainte-Marie, 97130 Capesterre-Belle-Eau, Guadeloupe, France;3. ELISOL, Z.A. des Tourels, 10 avenue du Midi, 30111 Congénies, France;4. AgroParisTech, UMR 211 Agronomie, Thiverval Grignon, France;5. CIRAD, UPR Recyclage et risque, Station de La Bretagne, BP 20, 97408 Saint-Denis Cedex, Réunion, France;1. Department of Civil Engineering, Indian Institute of Technology, Delhi, New Delhi, India;2. Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH, United Kingdom;3. Department of Civil, Structural & Environmental Engineering, Trinity College Dublin, Dublin, Ireland;4. Centre of Excellence for Research on Clean Air, Indian Institute of Technology, Delhi, New Delhi, India |
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| Abstract: | The emissions of VOC from freshly cut and shredded Grevillea robusta (Australian Silky Oak) leaves and wood have been measured. The VOC emissions from fresh leaf mulch and wood chips lasted typically for 30 and 20 h respectively, and consisted primarily of ethanol, (E)-2-hexenal, (Z)-3-hexen-1-ol and acetaldehyde. The integrated emissions of the VOCs were 0.38±0.04 g kg?1 from leaf mulch, and 0.022±0.003 g kg?1 from wood chips. These emissions represent a source of VOCs in urban and rural air that has previously been unquantified and is currently unaccounted for. These VOCs from leaf mulch and wood chips will contribute to both urban photochemistry and secondary organic aerosol formation. Any CH4 emissions from leaf mulch and wood chips were <1×10?11 g g dry mass?1 s?1. |
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