title: Fractionation of heavy metals and phosphorus in suspended sediments of the Yamuna river, India.
abstract: The Yamuna river is the largest tributary of the Ganges river system. It originates in the Himalayas and flows through a varied geological terrain encompassing a large basin area. Metals Fe, Mn, Pb, Zn, Cu in different chemical fractions of suspended sediments such as exchangeable, carbonates, Fe-Mn oxides, organics and residual fractions were studied. Phosphorus associated with different chemical forms are discussed. The metals are mostly associated with residual fractions in the sediments followed by organics, Fe-Mn oxides, exhangeable and carbonates. Intensive use of chemical fertilizers and pesticides in agriculture in the basin affects the high inorganic phosphorus content in sediments.
authors.affiliation: Department of Earth Sciences, Indian Institute of Technology, 400 0076, Bombay, India.
authors.forename: G J
authors.initials: GJ
authors.lastname: Chakrapani
authors.forename: V
authors.initials: V
authors.lastname: Subramanian