کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7475826 | 1485195 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical microscopy as a new approach for characterising dust particulates in urban environment
ترجمه فارسی عنوان
میکروسکوپ نوری به عنوان یک رویکرد جدید برای مشخص کردن ذرات گرد و غبار در محیط شهری
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This paper presents a case study performed using CGA to evaluate the dust composition and proportion of coal and other particulates and also their size distribution in samples collected in an urban area along a coal rail corridor in Newcastle (Australia). In coastal environments a significant proportion of dust can be water soluble (salt) particulates; the proportion of soluble particulates in those samples varied from 46% to 52.3%. The concentration of insoluble particles in samples varied from 5.9 to 15.5â¯Î¼gâ¯mâ3 in the PM2.5-10 fraction and from 0.4 to 0.9â¯Î¼gâ¯mâ3 in the PM1-2.5 fraction. All samples consisted predominantly of particles of organic origin (mostly plant and insect remains) - 55.3%-85.3% by mass. Dark material particles of mainly inorganic origin (low reflecting material, mainly stone dust, clay, soot, rubber and soil), combustion char and metal particles (rust and iron oxides) were present in lower concentrations - 0.0% to 19.9% by mass. The amount of coal in the water insoluble fraction of the samples ranged from 5.3% to 19.7% by mass with 2.9%-13.5% by mass of coal particles in the thoracic (2.5-10â¯Î¼m) and 0.3%-1.2% by mass in the respirable (1-2.5â¯Î¼m) size fraction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 223, 1 October 2018, Pages 196-202
Journal: Journal of Environmental Management - Volume 223, 1 October 2018, Pages 196-202
نویسندگان
Silvie Koval, Gregoire Krahenbuhl, Karryn Warren, Graham O'Brien,