TY - JOUR
T1 - A comparison of several dose-response models based on laboratory exposures of tree seedlings to sulfur dioxide
AU - Umbach, D. M.
AU - Davis, D. D.
AU - Pennypacker, S. P.
N1 - Funding Information:
This paper is contribution No. 1367 from the Department of Plant Pathology, journal paper No. 6527 of the Pennsylvania Agricultural Experiment Station, and contribution No. 653-82 from the Center for Air Environment Studies. The research was supported by the U.S. Department of Energy Grant No. EE-77-S-02-4497. The authors thank J. B. Cop-polino for maintaining seedlings and laboratory equipment.
PY - 1983/11
Y1 - 1983/11
N2 - River birch and Virginia pine seedlings were exposed to 0.3, 0.6, 0.9, 1.2 and 2.4 ppm SO2 (800, 1600, 2400, 3100, and 6300 μg m3, respectively) for 1, 2, 4, and 8 h in modified controlled environment chambers. Data quantifying the severity of SO2 induced leaf necrosis provided by these exposures were used to evaluate dose-response models developed by O'Gara, Guderian et al., Zahn, and Larsen and Heck, or simple extensions of them. Model performance was assessed based on R2 values and P-values from tests for aptness of the model. The four original models gave acceptable R2 values but failed tests for aptness. Extensions of the Larsen-Heck and Zahn models performed better than the other models examined.
AB - River birch and Virginia pine seedlings were exposed to 0.3, 0.6, 0.9, 1.2 and 2.4 ppm SO2 (800, 1600, 2400, 3100, and 6300 μg m3, respectively) for 1, 2, 4, and 8 h in modified controlled environment chambers. Data quantifying the severity of SO2 induced leaf necrosis provided by these exposures were used to evaluate dose-response models developed by O'Gara, Guderian et al., Zahn, and Larsen and Heck, or simple extensions of them. Model performance was assessed based on R2 values and P-values from tests for aptness of the model. The four original models gave acceptable R2 values but failed tests for aptness. Extensions of the Larsen-Heck and Zahn models performed better than the other models examined.
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U2 - 10.1080/00022470.1983.10465694
DO - 10.1080/00022470.1983.10465694
M3 - Article
AN - SCOPUS:0020969089
SN - 0002-2470
VL - 33
SP - 1073
EP - 1079
JO - Journal of the Air Pollution Control Association
JF - Journal of the Air Pollution Control Association
IS - 11
ER -