Spatial distribution and risk assessment of potential environmentally hazardous elements in coal: a case study of the Central Anatolia coalfields


Ünal Kartal N., Güllüdağ C. B.

PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI, cilt.31, sa.8, ss.1391-1398, 2025 (ESCI, TRDizin)

Özet

A wide range of environmental risks may arise during coal mining. Atthe same time, it is possible that during the transportation andextraction of coal, locals and especially the workers working in themining area may be harmed, depending on their proximity toagricultural lands and settlement centers. Revealing the spatialdistribution of potentially hazardous elements in coal (Ag, As, B, Ba, Be,Cd, Cl, Co, Cr, Cu, F, Hg, Mn, Mo, Ni, P, Pb, Sb, Se, Sn, Th, Tl, U, V, Zn) is animportant step for identifying potential environmental health risks.Using Geographic Information System (GIS) tools and Remote Sensingtechniques, the objective of this study is to identify and compare thespatial risk assessment of the elements in the Ilgın (Konya) andKarapınar (Konya) lignite areas. The surroundings of the mining siteswere classified into 7 classes (crops, rangeland, bare ground, water,built area, flooded vegetation, trees) using SENTINEL-2 satellite datawith a 10 m spatial resolution and CORINE LULC data. Subsequently,mapping and buffer zone analyses were conducted using the GIS. Theland use land cover classification revealed that both mining sites werehighly distributed in agricultural lands (Karapınar: 155.32 km2, Ilgın:178.45 km2) and rangeland (Karapınar: 140.4 km2, Ilgın: 40.72 km2).Geochemical results showed that Ni concentrations exceeded the limitvalues in the Karapınar lignites, while As concentrations exceeded thelimit values in the Ilgın lignites. Based on these results, it was concludedthat the Ni concentration in agricultural lands and rangelands aroundthe Karapınar site, and the As concentration in agricultural lands andrangelands around the Ilgın site, should be monitored periodically.