INFLUENCE OF THE ATMOSPHERIC CONDUCTIVITY ON THE OZONE EXPOSURE OF PLANTS UNDER AMBIENT CONDITIONS - CONSIDERATIONS FOR ESTABLISHING OZONE STANDARDS TO PROTECT VEGETATION

被引:56
作者
GRUNHAGE, L
JAGER, HJ
机构
关键词
D O I
10.1016/0269-7491(94)90078-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper provides results of ozone flux density measurements above a permanent grassland ecosystem as they relate to an establishment of air quality guidelines or standards. Using a resistance analogue, the product of ozone concentration measured at a standard measurement height and the conductivity of the atmosphere reflect the maximum possible ozone flux density towards the envelope of the plants. In other words, this product can be regarded as the ozone exposure potential of the atmosphere for plants. It could be shown that ozone concentrations between 100 and 180 mug m-3 are likely to have a great phytotoxic potential and are more important than concentrations greater than 180 mug m-3. From the results presented one can deduce that the application of dose-response relationships based on chamber experiments to ambient conditions results in an overestimation of, for example, yield losses. Any guideline or standard has to take into account the influence of the atmospheric conductivity on the absorbed dose of ozone.
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页码:125 / 129
页数:5
相关论文
共 14 条
[11]  
TONNEIJCK AEG, 1991, BIOINDIKATION WIRKSA, P613
[12]   SO2, SULFATE AND HNO3 DEPOSITION VELOCITIES COMPUTED USING REGIONAL LAND-USE AND METEOROLOGICAL DATA [J].
WALCEK, CJ ;
BROST, RA ;
CHANG, JS ;
WESELY, ML .
ATMOSPHERIC ENVIRONMENT, 1986, 20 (05) :949-964
[13]  
WARNECKE G, 1991, METEOROLOGIE UMWELT
[14]   AN EDDY-CORRELATION MEASUREMENT OF NO2 FLUX TO VEGETATION AND COMPARISON TO O-3 FLUX [J].
WESELY, ML ;
EASTMAN, JA ;
STEDMAN, DH ;
YALVAC, ED .
ATMOSPHERIC ENVIRONMENT, 1982, 16 (04) :815-820