Publikationsdatum:
2013-12-18
Beschreibung:
This study investigates the anthropogenic contribution of heavy metal accumulation in sediments from the northwestern part of Hyderabad city. Hyderabad is one of the biggest cities in India. Sediment samples have been collected in the entire study area, covering industrial, agricultural, and residential zones. The concentration of heavy metals viz., As, Cd, Cr, Cu, Ni, Pb, Zn, Mn, and Fe are determined using X-ray fluorescence spectrometer. Among the heavy metals studied, As, Cd, Cr, and Pb are found in higher concentrations than prescribed sediment quality guideline values, which are highly toxic in nature. Correlation analysis and principle component analysis based on factor analysis is performed over the data sets. This analysis identified three factors which are responsible for data structure explaining that the source of As, Cd, Cr, and Pb contamination of sediments are majorly associated with industrial activities. Spatial distributions of these metal contaminants are examined using ArcGIS 9.3v; this indicated that the Kazi Lake is the most polluted among the other lakes in the study area. This study can be used to estimate GBLs and Construct GBFs of heavy metals from sediments on the world in order to manage sediment quality.
Print ISSN:
1866-7511
Digitale ISSN:
1866-7538
Thema:
Geologie und Paläontologie
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