Polymer Petroleum and Coal Chemistry Group;
Materials Science and Technology Division;
CSIR-North East Institute of Science and Technology;
Jorhat;
785006;
Assam;
India;
Academy of Scientific and Innovative Research;
CSIR-NEIST Campus;
Jorhat;
785006;
India;
Research group in Environmental Management and Sustainability;
Department of Civil and Environmental Engineering;
Universidad de la Costa;
Barranquilla;
Colombia;
University of Texas at Dallas;
Richardson;
TX;
USA;
Coal; combustion; Nanoparticles; Nanominerals; Hazardous; elements; Human; health; Coal; energy; challenge;