Agarwal, Deepa2017-11-212017-11-212016-11http://hdl.handle.net/123456789/808enKatras areaTata iron and steel companyX ray diffractionPulmonary function testsParticle size distributionESEPh.DInvestigations into the occupational health problems of mine dust for coal miners in Jharia Coalfield, IndiaThesis