Assessment of surface ozone over residential environments تقييم الأوزون السطحي على البيئات السکنية

doi:10.21608/auber.2014.148429

Assessment of surface ozone over residential environments تقييم الأوزون السطحي على البيئات السکنية

Document Type : Original Article

10.21608/auber.2014.148429

Abstract

ABSTRACT
Surface ozone (O3) has become one of the most important topic of air quality and climate
change researches. This is because of causing harmful effects on human health, climate, vegetation
and materials. For these reasons, understanding the processes which control the origin, trends,
distribution and effects surface O3 are important. In this paper, the surface O3 concentration was
investigated experimentally and numerically over residential environment. Surface O3 was measured
using Visible blind Ultraviolet sensors (UV Ozone Analyzer) over the period of 2008-2010 in Kuwait
international airport. A back trajectory method based on HYbrid Single-Particle Lagrangian
Integrated Trajectory (HYSPLIT) model was used for assessing the surface O3 over residential
environment. The diurnal, and seasonal variations of surface O3 were analyzed and discussed.
Furthermore, the effect of meteorological conditions on the surface O3 was also analyzed. Diurnal
variation shows that maximum O3 concentration was at the noon and about minimum in the evening.
Seasonal variation showed that February was a highest rate of O3 concentration. Power stations are
a major point source for O3 precursors. The surface O3 shows a medium correlation with
temperature and a week correlation with wind speed
الملخص العربي :
أصبح الأوزون السطحي (O3) أحد أهم موضوعات أبحاث جودة الهواء وتغير المناخ في البيئة
الحضرية. وذلک لأنه يتسبب في آثار ضارة على صحة الإنسان والمناخ والغطاء النباتي والمواد. لهذه الأسباب،
فمن الضروري فهم العمليات التي تتحکم في أصل O3 واتجاهات O3 وتوزيع O3 واثأر O3. ولهذا في البحث
الحالي، يتم دراسة ترکيز O3 عمليا وعدديا على البيئة السکنية. عمليا تم قياس O3 باستخدام أجهزة استشعار الأشعة
فوق البنفسجية المرئية (محلل الأشعة فوق البنفسجية الأوزون) خلال الفترة ٢٠١٠-٢٠٠٨ في مطار الکويت
الدولي. و عدديا تم استخدام طريقة المسار الخلفي على أساس نموذج HYSPLIT لتقييم السطح O3 على البيئة
السکنية. وقد تم تحليل التغيرات النهارية، والموسمية للأوزون السطحي ومناقشتها. وعلاوة على ذلک، تم أيضا
تحليل تأثير الأحوال الجوية على O3. وأظهرت النتائج التباين في ترکيز الأوزون حيث يظهر أقصى ترکيز
للأوزون في الظهر والحد الأدنى للترکيز في المساء. ويظهر التفاوت الموسمي الأعلى معدل لترکيز O3 في
فبراير. وأظهرت النتائج انه يوجد علاقة قوية للأوزون مع درجة الحرارة ومع سرعة الرياح. وأن محطات
الکهرباء تکون المصدر الرئيسي للأوزون .

Highlights

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