Nitrogen-15 Dioxide Uptake and Incorporation by Phaseolus vulgaris (L.)

Abstract
The sorption rate and metabolic fate of nitrogen dioxide, a major air pollutant, have been determined for Phaseolus vulgaris (L.). Sorption was determined kinetically by chemiluminescent monitoring of 15 NO 2 removal from the test atmosphere and directly by mass spectrometric analysis of nitrogen derived from the plant tissue. Sorptive processes were first order with respect to 15 NO 2 concentration. Virtually all of the 15 NO 2 taken up was metabolized.