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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >STUDYING CUMULATIVE OZONE EXPOSURES IN EUROPE DURING A 7-YEAR PERIOD
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STUDYING CUMULATIVE OZONE EXPOSURES IN EUROPE DURING A 7-YEAR PERIOD

机译：研究7年内欧洲累积的臭氧暴露

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Ozone is one of the most harmful pollutants in the troposphere. High ozone concentrations can damage plants, animals and humans. The damaging effects depend on the magnitude of a critical level of a special parameter, the cumulative ozone exposure. This is why cumulative ozone exposures must be carefully studied. It is important to determine the relationships between relevant emissions (NOx emissions, human-made VOC emissions, and/or a combination of NOx emissions and human-made VOC emissions) and cumulative ozone exposures. All these issues are discussed in this paper. Meteorological data from seven consecutive years, from 1989 to 1995, have been used in the experiments with different scenarios for varying the emissions (the NOx emissions, the human-made VOC emissions, as well as both the NOx emissions and the human-made VOC emissions). The particular air pollution model used in this study is the Danish Eulerian Model. Several hundred runs with different input data (meteorological data and/or emission data) have been performed. Advanced visualization techniques are used to interpret the large amount of digital data collected in these runs and to show clearly different trends and relationships that are normally hidden behind millions and millions of numbers. The model results were compared with measurements taken at more than 80 stations located in different European countries. The experiments indicate that it is sufficient to carry out computations over 5 consecutive years in order to eliminate the influence of extreme meteorological conditions (very warm or very cold summer months) on the cumulative ozone exposures, while this effect is clearly seen if less than 5 years are used in the experiments. It is shown that the relationship between the emissions (NOx and/or human-made VOC emissions) and the cumulative ozone exposures is in general nonlinear. Finally, it is illustrated that the critical values for ozone exposures are exceeded in most of Europe (in many areas by more than 7 times). [References: 25]
机译：臭氧是对流层中最有害的污染物之一。高浓度的臭氧会损害植物，动物和人类。破坏作用取决于特殊参数的临界水平的大小，即累积的臭氧暴露量。这就是为什么必须仔细研究累积的臭氧暴露量的原因。确定相关排放量（NOx排放量，人为的VOC排放量，和/或NOx排放量和人为的VOC排放量的组合）与累积的臭氧暴露量之间的关系非常重要。本文讨论了所有这些问题。从1989年到1995年连续七年的气象数据已用于不同情景下的实验中，以改变排放（NOx排放，人为VOC排放以及NOx排放和人为VOC）排放）。本研究中使用的特定空气污染模型是丹麦欧拉模型。使用不同的输入数据（气象数据和/或排放数据）进行了数百次运行。先进的可视化技术用于解释在这些运行中收集的大量数字数据，并清楚地显示通常隐藏在数百万个数字后面的不同趋势和关系。将模型结果与在不同欧洲国家的80多个站点进行的测量进行了比较。实验表明，连续5年进行计算足以消除极端气象条件（夏季非常温暖或非常寒冷的月份）对累积臭氧暴露量的影响，而如果小于5，则可以清楚地看到这种影响。实验中使用了多年。结果表明，排放量（NOx和/或人为VOC排放量）与累积臭氧暴露量之间的关系通常是非线性的。最后，有证据表明，在欧洲大部分地区，臭氧暴露的临界值被超过（在许多地区超过了7倍）。 [参考：25]

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