| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 11:40 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2021 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Influence of coal-mining activities on the air quality of the mine surrounding area
Authors:
Adriana Dumitru (1), Alina Olaru (2), Marius Dumitru (3), Gabriela Iorga (1,4)
*
Affiliation:
1) University of Bucharest, Faculty of Physics, Atomistilor 405, Magurele, 077125 Bucharest, Romania
2) University of Bucharest, Faculty of Biology, Splaiul Independence 91-95, Bucharest 050095, Romania
3) National Institute for Laser, Plasma and Radiation Physics, Atoms Street 409, Măgurele, 077125, Romania
4) University of Bucharest, Department of Physical Chemistry (Physics Group), Bd. Regina Elisabeta 4-12, 030018, Bucharest, Romania
E-mail
adriana.dumitru1@gmail.com
Keywords:
PM10, PM2.5, PM1, coal, air quality, SEM, EDS analysis
Abstract:
Atmospheric impact of coal mining activities is caused mainly by the carbon emissions. Present study is focused on the determination of airborne particulate matter produced by a coal open-mine and its impact on a close-by residential area. The main goal was to assess the mass concentrations and total carbon fractions (TC) of ambient PM10, PM2.5 and PM1. The samples were collected during two sampling campaigns, 10 successive working days (active mining), between 5-14 April 2018 and 5 successive days without mining activity on the site (12-16 January 2019). The samples were collected at about 10 m over the ground for 12 hours per day, using two low-volume samplers (substrate: quartz fiber filter) and an eight-stage low-pressure cascade impactor (size range 0.06-16 µm diameter; substrate: aluminum foil). Morphological and compositional sample properties were determined by scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS) analysis, as well. The results prove the impact of the mining activities on surrounding areas by showing significant variation of total mass concentration of particulate matter from full time working days to non-working days. Results also revealed the presence of crustal and anthropogenic origin elements such as C, O, Si, Ca, K, S, Cu, Ni, Fe, Mg, Ti.
Acknowledgement:
AD and GI thanks the support from the Norway Grants 2014-2021, under Project contract no. 31/01.09.2020, project code EEA-RO-NO-2019-0423.
|
|
|
|