Abstract
Oryzopsis hymenoides, a desert grass, was exposed to low concentrationsof SO2 ranging from 0.03 to 1.00 ppm for six week fumigation periods. Deleterious effects were noted only at atmospheric SO2 concentrations of 0.13 ppm and above. These effects included necrotic lesions and reduced net primary productivity. At concentrations below 0.13 ppm, the SO2 appeared to have a beneficial effect on productivity. The deleterious effects noted at the higher concentrations have ecological implications if pollutant sources are located in desert environments.
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Ferenbaugh, R.W. Effects of prolonged exposure of Oryzopsis hymenoides to SO2 . Water Air Soil Pollut 10, 27–31 (1978). https://doi.org/10.1007/BF00161993
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DOI: https://doi.org/10.1007/BF00161993