Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 173, Issue 1-4, Pages 181-191Publisher
SPRINGER
DOI: 10.1007/s10661-010-1380-0
Keywords
Soils; Heavy metals; Geostatistics; Block kriging; Amik Plain
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Funding
- Mustafa Kemal University Research Foundation [MKU BAP 03 B 0801]
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The purpose of the study was to investigate the total and bio-available contents of heavy metals (Cd, Co, Ni, and Pb) and to determine their spatial variability in the Amik Plain, Turkey. Samples of surface and subsurface soil were collected at 132 sites in the research area. All of the total metal concentrations except Ni were considerably lower than their maximum allowable concentrations. Mean available Pb concentrations at both depths were above the permissible limits, while the other metal concentrations were within the proposed limits. Semivariograms of all the total metal contents, pH, and available Ni and Pb content were best fitted to spherical models, while available Cd and Co contents were best fitted to exponential models. Block kriging was used to interpolate values at unmeasured locations, generating maps of spatial variation for each heavy metal and pH.
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