کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4451547 1620580 2006 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Traffic aerosols (18 nm ≦ particle size ≦ 18 μm) source apportionment during the winter period
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Traffic aerosols (18 nm ≦ particle size ≦ 18 μm) source apportionment during the winter period
چکیده انگلیسی

In November 2004–January 2005, a micro orifice uniform deposit impactor (MOUDI) and a Nanometer (nanometer)-MOUDI were used in the center of Taiwan to measure particle size (18 nm ≦ particle size ≦ 18 μm) distributions of atmospheric aerosols at a traffic site during the winter period. The average Mass in Media Aerodynamic Diameter (MMAD) of suspended particles is 0.99 μm this study. As for the ultra fine and nanometer (nanometer) particle mode, the composition order for these major ions species was SO42− ≦ NH4+ ≦ NO3− ≦ Mg2+ ≦ Ca2+ ≦ Na+ ≦ K+ ≦ Cl−. An ion Chromatography (DIONEX-100) was used to analyze major anion species, Cl−, NO3−, SO42− and cation species, NH4+Na+, K+, Ca2+Mg2+. Their concentrations were also extracted from various particles size modes (nanometer (nanometer), ultra fine, fine and coarse). The results obtained in this study also indicated that the average portions for the major ionic species (SO42−, NH4+ and Mg2+) in the nanometer (nanometer), ultra fine, fine and coarse particulate modes are about 34%, 37%, 63% and 30%, respectively at this traffic sampling site during the winter period.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 80, Issue 4, June 2006, Pages 294–308
نویسندگان
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