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Influence of local meteorology and NO2 conditions on ground-level ozone concentrations in the eastern part of Texas, USA

机译：美国得克萨斯州东部地区的气象和二氧化氮条件对地面臭氧浓度的影响

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摘要

The influence of local climatic factors on ground-level ozone concentrations is an area of increasing interest to air quality management in regards to future climate change. This study presents an analysis on the role of temperature, wind speed, wind direction, and NO2 level on ground-level ozone concentrations over the region of Eastern Texas, USA. Ozone concentrations at the ground level depend on the formation and dispersion processes. Formation process mainly depends on the precursor sources, whereas, the dispersion of ozone depends on meteorological factors. Study results showed that the spatial mean of ground-level ozone concentrations was highly dependent on the spatial mean of NO2 concentrations. However, spatial distributions of NO2 and ozone concentrations were not uniformed throughout the study period due to uneven wind speeds and wind directions. Wind speed and wind direction also played a significant role in the dispersion of ozone. Temperature profile in the area rarely had any effects on the ozone concentrations due to low spatial variations.
机译：当地气候因素对地面臭氧浓度的影响是关于未来气候变化的空气质量管理越来越引起人们关注的领域。这项研究对美国德克萨斯州东部地区温度，风速，风向和NO2水平对地面臭氧浓度的作用进行了分析。地面上的臭氧浓度取决于形成和分散过程。形成过程主要取决于前驱物的来源，而臭氧的扩散则取决于气象因素。研究结果表明，地面臭氧浓度的空间平均值高度依赖于NO2浓度的空间平均值。但是，由于风速和风向不均匀，整个研究期间NO2和臭氧浓度的空间分布并不均匀。风速和风向在臭氧扩散中也起着重要作用。由于空间变化小，该地区的温度剖面很少会对臭氧浓度产生任何影响。

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  • 来源
    《Air quality, atmosphere & health》 |2015年第1期|81-96|共16页
  • 作者

    A. K. Gorai; F. Tuluri; P. B. Tchounwou; S. Ambinakudige;

  • 作者单位

    1.Environmental Science and Engineering Group Birla Institute of Technology Mesra Ranchi 835215 India 2.Department of Technology Jackson State University Jackson MS 39217 USA;

    2.Department of Technology Jackson State University Jackson MS 39217 USA;

    3.NIMHD RCMI-Center for Environmental Health Jackson State University Jackson MS 39217 USA;

    4.Department of Geosciences Mississippi State University Starkville MS 39762 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ground-level ozone; NO2; Meteorology; Kriging; Mapping; Texas;

    机译：地面臭氧NO2气象学克里格法制图德州;

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