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MTBE concentration profiles near MTBE manufacturing plant: Modeling approach and modeling uncertainty

机译：MTBE制造工厂附近的MTBE浓度曲线：建模方法和建模不确定性

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摘要

The methyl rerr-butyl ether (MTBE) concentration profiles near a MTBE manufacturing plant were monitored on two occasions. The US EPA's atmospheric dispersion model (industrial source complex short-term) was used to model the ambient MTBE levels with the input of local meteorological data as well as MTBE emissions from the plant. The measured ambient MTBE concentrations range from 6 to 76 μg m~(-3) with the average value about 33 μ.g m~(-3). These values are similar to those values reported in ambient air in the vicinity of service stations of 4-12 μg m~(-3) and tollbooths at a highway of 10-22 μg m~(-3), but lower than those values reported in ambient air near gas stations of 50-690 μg m~(-3), and higher than those values reported in atmospheric of 0.9-3.0 μg m~(-3).rnSince the model has not been validated for the simulated MTBE profiles, there exist differences between the observed and mode-predicted data. The sensitivity and uncertainty of model parameters were then analyzed. The effects of wind direction, wind velocity and atmospheric stability are discussed in terms of their impact on model sensitivity/uncertainty.
机译：两次监测了MTBE生产工厂附近的甲基叔丁基醚（MTBE）浓度曲线。美国EPA的大气扩散模型（短期工业源综合模型）用于通过本地气象数据以及工厂的MTBE排放输入来模拟环境MTBE水平。测得的环境MTBE浓度范围为6到76μgm〜（-3），平均值约为33μgg〜（-3）。这些值类似于在4-12μgm〜（-3）的加油站附近的环境空气中和在10-22μgm〜（-3）的高速公路上的收费站所报告的那些值，但低于这些值在加油站附近的环境空气中报告的浓度为50-690μgm〜（-3），高于在大气中报告的值0.9-3.0μgm〜（-3）。剖面图，观察到的和模式预测的数据之间存在差异。然后分析了模型参数的敏感性和不确定性。讨论了风向，风速和大气稳定性对模型灵敏度/不确定性的影响。

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  • 来源
    《Chemosphere》 |2009年第10期|1322-1328|共7页
  • 作者

    Ken-Hui Chang; Chien-Hung Chen;

  • 作者单位

    Department of Safety, Health and Environmental Engineering, National Yunlin University of Science and Technology, 123 University Rd., 3rd Section, Touliu, Yunlin 64002, Taiwan;

    Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    sensitivity analysis; meteorological parameter; atmospheric dispersion; uncertainty;

    机译：敏感性分析;气象参数大气扩散不确定;

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