Fig. 7. Breakthrough curves for bromide (a), toluene (b), and o-xylene (c) in selected suction cups (s.c.). The numbers refer to the numbers of the suction cups (see Fig. 2). Concentrations are plotted against time, where x labels represent the days at 0900 h. The vertical lines indicate the cease of application of bromide and hydrocarbons.

Return to article