Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7475826 | Journal of Environmental Management | 2018 | 7 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Silvie Koval, Gregoire Krahenbuhl, Karryn Warren, Graham O'Brien,