caa a22 4500 467904480 CHVBK 20180406152829.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s10661-006-3262-z doi (NATIONALLICENCE)springer-10.1007/s10661-006-3262-z Pattern of Hexa-Valent Chromium in Air Borne Respirable Dust Generated at Various Workplaces in Opencast Chromite Mines [Elektronische Daten] [D. Panigrahi, J. Pandey, G. Udaybhanu] The paper presents a study into air borne respirable dust (ARD) concentration at various workplaces in two open cast chromite mines of Sukinda chromite belt, India. One of these mines is mechanised and the other one is semi-mechanised. The study has been conducted in three phases and ARD concentration has been measured at various workplaces in both the mines. Apart from the determination of ARD concentration, the dust samples collected on filter papers were analysed for hexa-valent chromium by colorimetric method and Cr(VI) direct absorption measurement. In addition, the particle size ranges in ARD have been determined by using cascade impactor fitted onto high volume samplers and laser guided particle size analyser. The paper finally presents a comparison between ARD concentration vis-à-vis the presence of hexa-valent chromium concentration in collected samples of both mechanised and semi-mechanised mines. Springer Science + Business Media, Inc., 2006 air borne respirable dust nationallicence particle size distribution nationallicence hexa-valent chromium nationallicence chromite mining nationallicence Panigrahi D. Indian School of Mines, Dhanbad, India aut Pandey J. Central Mining Research Institute, Dhanbad, India aut Udaybhanu G. Indian School of Mines, Dhanbad, India aut Environmental Monitoring and Assessment Springer Netherlands 114/1-3(2006-03-01), 211-223 0167-6369 114:1-3<211 2006 114 10661 https://doi.org/10.1007/s10661-006-3262-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-3262-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Panigrahi D. Indian School of Mines, Dhanbad, India aut NATIONALLICENCE 700 1- Pandey J. Central Mining Research Institute, Dhanbad, India aut NATIONALLICENCE 700 1- Udaybhanu G. Indian School of Mines, Dhanbad, India aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Springer Netherlands 114/1-3(2006-03-01), 211-223 0167-6369 114:1-3<211 2006 114 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer