کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4452589 1620767 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fine carbonaceous aerosol characteristics at a coastal rural site in the Central Mediterranean as given by OCEC online measurements
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Fine carbonaceous aerosol characteristics at a coastal rural site in the Central Mediterranean as given by OCEC online measurements
چکیده انگلیسی

In order to know the variability and to understand the sources of carbonaceous aerosol in the Central Mediterranean area, a two month (May and June 2010) field campaign was carried out at Trisaia ENEA Research Centre (Italy). The semi-continuous measurements of organic carbon (OC) and elemental carbon (EC) showed one order of magnitude variation during the campaign, with very low EC concentrations. The diurnal variation of EC was similar to the diurnal variation of NO2 concentration, of number concentration of aerosol particles with diameters between 0.25 and 2.5 μm and of traffic flow while the diurnal variation of OC was more related to the meteorological conditions. The increase of OC observed early in the morning may be due to an increase of the secondary organic aerosol (SOA) fraction, in low wind conditions, increasing solar radiation and in the presence of air masses rich in volatile organic compounds (VOC) transported from the NW, and due to the presence of primary biological aerosol particles such as bacteria, spores and pollen.


► High time-resolution OC/EC measurements at a rural site in the Southern of Italy.
► Very low EC concentrations, thermal and optical EC data are reported.
► Dust aerosol influences the relations between thermal and optical EC.
► Diurnal variations of EC, NO2, fine particles number and traffic flow are similar.
► Diurnal variation of OC is more related to the meteorological conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Aerosol Science - Volume 56, February 2013, Pages 78–87
نویسندگان
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