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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Monitoring of Air Pollution in the Atmosphere Around Oman Liquid Natural Gas (OLNG) Plant
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Monitoring of Air Pollution in the Atmosphere Around Oman Liquid Natural Gas (OLNG) Plant

机译：监测阿曼液化天然气（OLNG）厂周围大气中的空气污染

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This study was basically designed to assess the potential environmental air quality impacts arising from the existing two operational trains at the Oman Liquid Natural Gas (OLNG) plant. The results of the paper contain a baseline survey of the existing environment. The pollutants studied included methane (CH_4), non-methane hydrocarbons (NMHC), carbon monoxide (CO), nitrogen oxides (NO_x), and suspended particulate matters (dust PM 10). Meteorological parameters monitored simultaneously include wind speed and direction, air temperature, and relative humidity. The air quality data were used to determine the diurnal and monthly variations in the pollutants. Description levels of the pollutants with respect to meteorological data were also used in analysis. Moreover, a statistical analysis of the collected data was presented. Generally, the results indicated that the mean concentrations of pollutants were low to cause any significant impact in air quality. The area had no problem in meeting the air quality standards for CO and NOg. It was also found that there was a random relationship between CO and NMHC, and between NO and NO_x (no apparent correlation). The diurnal peaks of NO_x, NO_2, THC, and NMHC over a 24-h period were observed at around 9:00-10:00 AM (morning peak). For NO, NO_2, and NO_x, another peak was seen at around 5:00 PM (evening peak). Furthermore, the measured concentrations for NO_2, NO_x, and CO were found higher in winter than in summer. The study would help to gain a better understanding of local background levels of air pollutants at the area prior to the construction of new industrial projects, and to prepare action plans for controlling pollution in the area.
机译：这项研究的基本目的是评估阿曼液态天然气（OLNG）工厂现有的两列运行培训对环境空气质量的潜在影响。本文的结果包含对现有环境的基线调查。研究的污染物包括甲烷（CH_4），非甲烷碳氢化合物（NMHC），一氧化碳（CO），氮氧化物（NO_x）和悬浮颗粒物（粉尘PM 10）。同时监测的气象参数包括风速和风向，气温和相对湿度。空气质量数据用于确定污染物的每日和每月变化。分析中还使用了有关气象数据的污染物描述水平。此外，对收集到的数据进行了统计分析。通常，结果表明污染物的平均浓度较低，不会对空气质量产生重大影响。该地区在满足CO和NOg空气质量标准方面没有问题。还发现CO和NMHC之间以及NO和NO_x之间存在随机关系（没有明显的相关性）。在上午9：00-10：00左右观察到了24小时内的NO_x，NO_2，THC和NMHC的日峰值（早晨峰值）。对于NO，NO_2和NO_x，在下午5:00左右出现另一个峰值（晚上峰值）。此外，冬季测得的NO_2，NO_x和CO浓度要高于夏季。该研究将有助于在建设新的工业项目之前更好地了解该地区的当地空气污染物背景水平，并为控制该地区的污染制定行动计划。

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