یک مدل ریاضیاتی برای پیش بینی تغییرات غلظت 24 ساعته BTEX در هوای شهر تهران

فضل زاده دویل, مهدی ، ندافی, کاظم ، رستمی, روح اله ، زارعی, احمد ، فیضی زاده دویل, مژگان (1391) یک مدل ریاضیاتی برای پیش بینی تغییرات غلظت 24 ساعته BTEX در هوای شهر تهران. International Journal of Environmental Health Engineering ــ 2 (1). ص.ص.1-6. شاپا 2277-9183

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آدرس اینترنتی رسمی : http://ijehe.org/article.asp?issn=2277-9183;year=2...

عنوان انگليسي

A mathematical model for predicting 24-hr variations of BTEX concentrations in ambient air of Tehran

خلاصه انگلیسی

Aims: In this study, the temporal variations of Benzene, Toluene, Ethyl benzene and Xylene (BTEX) in the atmosphere of Tehran city was investigated. Materials and Methods: Two air quality monitoring stations, Aghdasieh and Ray, in different locations of the city were selected. Sampling was carried out hourly from Nov 23, 2007 to Dec 22, 2007 in Aghdasieh air monitoring station and from Dec 10, 2007 to Jan 9, 2008, in Ray’s air monitoring station by an online BTEX monitoring system. The correlations, repeated measures variance and regressions tests were used for statistical analysis. Results: Results indicated that, concentrations of these compounds were sometimes higher than standard limits and were significantly different in selected stations. However, an approximately similar increasing and decreasing trend was seen among them. In most cases, equations for concentration variations were sinusoidal or fourth‑order. Conclusion: According to the results, sinusoidal and fourth‑order are most suitable equations for BTEX concentration variations in the ambient air of the city, and the trends of variations are similar in different places of the city.

نوع سند :مقاله
زبان سند : انگلیسی
نویسنده اول :مهدی فضل زاده دویل
نویسنده مسئول :روح اله رستمی
اطلاعات اضافی :indexed in: EBSCO Publishing's Electronic Databases, Expanded Academic ASAP, Genamics JournalSeek, Google Scholar, Hinari, Index Copernicus, OpenJGate, PrimoCentral, ProQuest, SCOLOAR, SIIC databases, Summon by Serial Solutions, Ulrich's International Periodical Directory
کلید واژه ها (انگلیسی):Air pollution, air quality modeling, ambient air, BTEX, concentration variations, tehran, VOCs
موضوعات :WA بهداشت عمومي > WA 30 بهداشت محيط
WA بهداشت عمومي > WA 30 بهداشت محيط
بخش های دانشگاهی :دانشکده بهداشت > گروه بهداشت محیط
کد شناسایی :4058
ارائه شده توسط : مهندس مهدی فضل زاده دویل
ارائه شده در تاریخ :12 اسفند 1391 11:08
آخرین تغییر :19 فروردین 1392 08:10

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