کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6342921 | 1620501 | 2016 | 46 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemical characteristics of PM2.5-0.3 and PM0.3 and consequence of a dust storm episode at an urban site in Lebanon
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کلمات کلیدی
benzo[g,h,i]peryleneSIIUFPChrHYSPLITFLAPYRPHEbenzo[e]pyreneB[k]FACENAPdibenzo[a,h]anthracenePAHIndeno[1,2,3-cd]pyreneB[a]P - B [a] PAcy - آبیAir pollution - آلودگی هواAcenaphthene - آکنهفتنAcenaphthylene - اسیافافیلنAnthracene - اینتگرین Benzo[a]anthracene - بنزو [an] آنتراسنBenzo[a]pyrene - بنزو [a] پییرنBenzo[b]fluoranthene - بنزو [b] فلورانتنBenzo[k]fluoranthene - بنزو [k] فلورانتنAnth - دومUltrafine particle - ذرات UltrafineFine particle - ذرات زیباparticulate matter - ذرات معلقWorld Health Organization - سازمان بهداشت جهانیFlu - سرفهDust storm - طوفان گرد و غبارMajor elements - عناصر اصلیTrace elements - عناصر ردیابیenrichment factor - غنی سازی عاملFluorene - فلوئورن Fluoranthene - فلوورانتنNaphthalene - نفتالینPolycyclic aromatic hydrocarbon - هیدروکربن آروماتیک چند حلقه ایChemical characteristics - ویژگی های شیمیاییPhenanthrene - پنانترنPyrene - پیرنهchrysene - کریستینtotal carbon - کل کربنWHO - که
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chemical characteristics of PM2.5-0.3 and PM0.3 and consequence of a dust storm episode at an urban site in Lebanon Chemical characteristics of PM2.5-0.3 and PM0.3 and consequence of a dust storm episode at an urban site in Lebanon](/preview/png/6342921.png)
چکیده انگلیسی
Located on the eastern side of the Mediterranean Basin at the intersection of air masses circulating between three continents, the agglomeration of Beirut, capital of Lebanon is an important investigating area for air pollution and more studies are needed to elucidate the composition of the smallest particles classified as carcinogenic to humans. PM2.5-0.3 and PM0.3 samples were collected during the spring-summer period in an urban background site of Beirut, after a dust storm episode occurred, and their chemical composition was determined. Our findings showed that components formed by gas to particle conversion (SO42Â â and NH4+) and related to combustion processes are mainly found in the PM0.3 fraction. Typical crustal (Ca2+, Fe, Ti, Mg2+), sea-salt (Na+, Clâ, Mg2+, Sr) species, and NO3â are mainly associated with the PM2.5-0.3 fraction. We have also evidenced that the dust episode which occurred in Lebanon in May 2011 originated from the Iraqian and Syrian deserts, which are the least studied, and had a direct influence on the composition of PM2.5-0.3 during the beginning of the first sampling period, and then an indirect and persistent influence by the re-suspension of deposited dust particles. Moreover, PAHs concentrations were much higher in PM0.3 than in PM2.5-0.3 and their composition appeared influenced by diesel (buses, trucks and generator sets) and gasoline (private cars) emissions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 180, 1 November 2016, Pages 274-286
Journal: Atmospheric Research - Volume 180, 1 November 2016, Pages 274-286
نویسندگان
Mireille Borgie, Frédéric Ledoux, Zeina Dagher, Anthony Verdin, Fabrice Cazier, Lucie Courcot, Pirouz Shirali, Hélène Greige-Gerges, Dominique Courcot,