caa a22 4500 467902348 CHVBK 20180406152822.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1007/s10661-006-7355-5 doi (NATIONALLICENCE)springer-10.1007/s10661-006-7355-5 Bioavailability of Metals in Fly Ash and Their Bioaccumulation in Naturally Occurring Vegetation: A Pilot Scale Study [Elektronische Daten] [Subodh Maiti, S. Nandhini] A pilot scale study was conducted to find out the different forms of metals if fly ash (FA) and bioaccumulation of these metals in the naturally growing vegetation on FA dumps. The total, acid extractable, bioavailable and water soluble fraction of metals of Fe, Cu, Mn, Zn, Ni, Co and Pb, and their bioaccumulation coefficients (BAC) on naturally growing vegetation were determined. FA samples had a neutral pH, low electrical conductivity, low organic C and trace amounts of N and P. The relative abundance of total metals in FA were found in the order Fe ≤ ≤ Zn ≤ Ni ≤ Co ≤ Cu. The concentration of bioavailable (DTPA) metals depend on the type and nature of coal used in thermal power stations. In the water the extract solution, only Fe and Zn were found above detection limits. After one year only four species of naturally occurring herbaceous vegetation were found growing and Cynodon dactylon (grass) covered almost entire surface of the FA. Iron accumulated to the greatest extent in vegetation followed by Mn, Zn, Cu, Pb, Ni and Co. The sequence of BAC for different metals were Fe (202) ≤ Mn (90) ≤ Zn (63) ≤ Pb (49) ≤ Ni (41) ≤ Cu (24). The experimental study revealed that Cynodon grass could be used for remediation of fly ash without any amendments, as this grass species act as metal excluder type. Springer Science + Business Media, Inc., 2006 bioaccumulation nationallicence bioavailable metal nationallicence fly ash nationallicence total metal nationallicence Maiti Subodh Centre of Mining Environment, Indian School of Mines, 826004, Dhanbad, Jharkhand, India aut Nandhini S. Centre of Mining Environment, Indian School of Mines, 826004, Dhanbad, Jharkhand, India aut Environmental Monitoring and Assessment Kluwer Academic Publishers 116/1-3(2006-05-01), 263-273 0167-6369 116:1-3<263 2006 116 10661 https://doi.org/10.1007/s10661-006-7355-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-7355-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maiti Subodh Centre of Mining Environment, Indian School of Mines, 826004, Dhanbad, Jharkhand, India aut NATIONALLICENCE 700 1- Nandhini S. Centre of Mining Environment, Indian School of Mines, 826004, Dhanbad, Jharkhand, India aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 116/1-3(2006-05-01), 263-273 0167-6369 116:1-3<263 2006 116 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer