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Chinese Journal of Applied Ecology ›› 2001, Vol. ›› Issue (3): 451-454.

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Transportation and transformation of 14C-phenanthrene in closed chamber (nutrient solution-lava-plant-air) system

JIANG Xia, OU Ziqing, YING Peifeng, Ayfer Yediler, Antonious Ketrrup   

  1. 1. Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016;
    2. GSF/Institute of Ecological Chemistry, Germany
  • Received:2000-12-19 Revised:2001-02-19

Abstract: The transportation and transformation of 14C phenanthrene in a closed ‘plant lava nutrient solution air' chamber system was studied by using radioactivity technology. The results showed that in this closed chamber system,phenanthrene was degraded fast.The radioactivity of 14C left at 23d in the nutrient solution was only 25% of applied.At the end of experiment (46d),the distribution sequence of 14C activity in the components of closed chamber system was root (38.55%)>volatile organic compounds (VOCs, 17.68%)>lava (14.35%)>CO2(11.42%)> stem (2%). 14C activities in plant tissue were combined with the tissue,and existed in the forms of lava bound(root 4.68%; stem and leaves 0.68%) and polar metabolites (root 23.14%; stem 0.78%).

Key words: 14C phenanthrene, Juncus effusus, Closed chamber system

CLC Number: