Relationship between the Optical Properties and Chemical Composition of Urban Aerosol Particles in Lithuania
المؤلفون المشاركون
Pauraite, Julija
Plauškaitė, Kristina
Ulevicius, Vidmantas
Dudoitis, Vadimas
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-17
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
In situ investigation results of aerosol optical properties (absorption and scattering) and chemical composition at an urban background site in Lithuania (Vilnius) are presented.
Investigation was performed in May-June 2017 using an aerosol chemical speciation monitor (ACSM), a 7-wavelength Aethalometer and a 3-wavelength integrating Nephelometer.
A positive matrix factorisation (PMF) was used for the organic aerosol mass spectra analysis to characterise the sources of ambient organic aerosol (OA).
Five OA factors were identified: hydrocarbon-like OA (HOA), biomass-burning OA (BBOA), more and less oxygenated OA (LVOOA and SVOOA, respectively), and local hydrocarbon-like OA (LOA).
The average absorption (at 470 nm) and scattering (at 450 nm) coefficients during the entire measurement campaign were 16.59 Mm−1 (standard deviation (SD) = 17.23 Mm−1) and 29.83 Mm−1 (SD = 20.45 Mm−1), respectively.
Furthermore, the absorption and scattering Angström exponents (AAE and SAE, respectively) and single-scattering albedo (SSA) were calculated.
The average AAE value at 470/660 nm was 0.97 (SD = 0.16) indicating traffic-related black carbon (BCtr) dominance.
The average value of SAE (at 450/700 nm) was 1.93 (SD = 0.32) and could be determined by the submicron particle (PM1) dominance versus the supermicron ones (PM > 1 µm).
The average value of SSA was 0.62 (SD = 0.13).
Several aerosol types showed specific segregation in the SAE versus SSA plot, which underlines different optical properties due to various chemical compositions.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pauraite, Julija& Plauškaitė, Kristina& Dudoitis, Vadimas& Ulevicius, Vidmantas. 2018. Relationship between the Optical Properties and Chemical Composition of Urban Aerosol Particles in Lithuania. Advances in Meteorology،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1118939
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pauraite, Julija…[et al.]. Relationship between the Optical Properties and Chemical Composition of Urban Aerosol Particles in Lithuania. Advances in Meteorology No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1118939
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pauraite, Julija& Plauškaitė, Kristina& Dudoitis, Vadimas& Ulevicius, Vidmantas. Relationship between the Optical Properties and Chemical Composition of Urban Aerosol Particles in Lithuania. Advances in Meteorology. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1118939
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1118939
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر