Impact of Mining Activities on the Air Quality in The Village Nearby a Coal Strip Mine

World Multidisciplinary Earth Sciences Symposium 2016

Pokorná, Petra^1 ; Hovorka, Jan^1 ; Brejcha, Jan^2

Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benátská 2, Prague 2

128 01, Czech Republic^1

Brown Coal Research Institute, JSC, Budovatel 2830/3, Most

434 01, Czech Republic^2

关键词: Aerodynamic diameters;    Aerosol particles;    Beta attenuation monitors;    Mass concentration;    Meteorological parameters;    Mining technology;    Rotating drum impactor;    Ultrafine particle;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/44/3/032021/pdf
DOI  :  10.1088/1755-1315/44/3/032021

来源: IOP

【 摘 要 】

The objective of the presented study was to estimate a share of atmospheric aerosol emitted by coal strip mine on PM10or PM1-10, mass concentration of aerosol particles thto 27thNovember 2012. Three size fractions, consisting PM10, were sampled by a Davis rotating-drum impactor and analysed for 27 elements by Synchrotron-XRF with time resolution 1 hour. Appropriate hourly PM10were measured by a Beta attenuation monitor in the village and calculated from 5 minute values by a nephelometer in the mine. Also, 24 hour aerosol samples for five size fractions were sampled by a personal cascade impactor sampler and viewed by scanning electron microscopy - SEM. Meteorological parameters were also recorded. Average contribution of coarse aerosol, PM1-10, to PM10was 70% (119 +59 μgm-3) in the mine and 20% (12 + 10 μgm-3) in the village. The SEM revealed solely soil particles in the mine samples but bioaerosol, ash and aggregates of ultrafine particles in the village samples. Databases of hourly elemental and mass concentrations from the two localities were analysed by EPA PMF 5.0. There were revealed following sources/average contribution to local PM10: wood burning/34%, resuspended dust/30%, coal combustion/22%, industry/11% and gypsum/3% in the village while resuspended dust/43%, coal combustion/37%, gypsum/16% and mining technologies/4% in the mine. Based on factor chemical profiles, the mine was found to contribute to PM1-10and PM10in the village by 6% and 20%, respectively.