AbstractHigher plants are likely to play a major role in bioregeneration systems for food, air and water supplies. Plants may also contribute by the removal of toxic organic substances from the air of a closed environment. Dieffenbachia amoena plants were exposed to 0 to 1.2 × 106 μg toluene·m−3 at light intensities of 35 and 90 μmol·m−2·s−1 in sealed chambers. Toluene removal, photosynthesis and respiration were measured. An increased light inten-sity increased the rate of toluene removal five-fold over the rate at the lower intensity; the kinetics suggest active regulation by the plant. The removal rate saturated at 2700 μg toluene·h−1 at the lower intensity and failed to saturate at the higher intensity. Toluene exposure inhibited photosynthesis and respiration only transiently and without correlation to toluene concentration. These plants can act as efficient scavengers of toluene in a contaminated environment.


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    Titel :

    Toluene removal from air by Dieffenbachia in a closed environment


    Beteiligte:
    Porter, J.R. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 14 , 11 ; 99-103


    Erscheinungsdatum :

    1994-01-01


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Toluene Removal from Air by Dieffenbachia in a Closed Environment

    Porter, J. R. / COSPAR; Interdisciplinary Scientific Commission F | British Library Conference Proceedings | 1994



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