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  • Title: Seasonal variations in isoprene emission from tropical deciduous tree species.
    Author: Singh AP, Varshney CK, Singh UK.
    Journal: Environ Monit Assess; 2007 Aug; 131(1-3):231-5. PubMed ID: 17242968.
    Abstract:
    Isoprene is a dominant constituent of the global biogenic volatile organic compounds budget. It plays an important role in regulating the atmospheric trace gas composition including tropospheric ozone concentrations. In this study, monthly measurements of isoprene emission rates were carried out over a 1-year period (December 2002-November 2003) from four Indian deciduous tree species, namely Ficus relegiosa, Ficus infectoria, Pongamia pinnata, and Morus alba, using branch enclosure method. Significantly high monthly variations in isoprene emission rates were observed in all four-plant species. Also, each plant species exhibited pronounced seasonal variation in isoprene emission. Maximum isoprene emissions were observed during summer and minimum during the winter or spring months.
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