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Chemosphere

Title:		Emission of volatile organic compounds (VOC) from tropical plant species in India
Author(s):		Padhy PK; Varshney CK;
Address:		"Centre for Environmental Studies, Institute of Science, Visva-Bharati, Santiniketan-731 235, West Bengal, India. padhypk2003@yahoo.com"
Journal Title:		Chemosphere
Year:		2005
Volume:		59
Issue:		11
Page Number:		1643 - 1653
DOI:		10.1016/j.chemosphere.2005.01.046
ISSN/ISBN:		0045-6535 (Print) 0045-6535 (Linking)
Abstract:		"Foliar emission of volatile organic compounds (VOC) from common Indian plant species was measured. Dynamic flow enclosure technique was used and the gas samples were collected onto Tenax-GC/Carboseive cartridges. The Tenax-GC/Carboseive cartridges were attached to the thermal disorber sample injection system and the gas sample was analysed using gas chromatography (GC) with flame ionisation detection (FID). Fifty-one local plant species were screened, out of which 36 species were found to emit VOC (4 high emitter; 28 moderate emitter; and 4 low-emitter), while in the remaining 15 species no VOC emission was detected or the levels of emission were below detection limit (BDL). VOC emission was found to vary from one species to another. There was a marked seasonal and diurnal variation in VOC emission. The minimum and maximum VOC emission values were < 0.1 and 87 microgg(-1) dry leaf h(-1) in Ficus infectoria and Lantana camara respectively. Out of the 51 plant species studied, 13 species are reported here for the first time. Among the nine tree species (which were selected for detailed study), the highest average hourly emission (9.69+/-8.39 microgg(-1) dry leaf) was observed in Eucalyptus species and the minimum in Syzygium jambolanum (1.89+/-2.48 microgg(-1) dry leaf). An attempt has been made to compare VOC emission from different plant species between present study and the literature (tropical and other regions)"
Keywords:		Air Pollutants/*analysis Gas Chromatography-Mass Spectrometry India Organic Chemicals/*analysis Pentanes/analysis/metabolism Plant Leaves/*metabolism Plants/classification/*metabolism Seasons Species Specificity Terpenes/analysis/metabolism Time Factors *;
Notes:		"MedlinePadhy, P K Varshney, C K eng Research Support, Non-U.S. Gov't England 2005/05/17 Chemosphere. 2005 Jun; 59(11):1643-53. doi: 10.1016/j.chemosphere.2005.01.046"