This paper presents a survey on soil Pb concentration around Sepahanshahr town located in vicinity of Isfahan. Due to the lack of regulation and environmental education and awareness, Sepahanshahr is now a rapid growing residential area suffering from the considerable consequences of poorly regulated mining activities operating in its vicinity. The aim of this study is to explore the spatial st...

Dominant features of spatial data are connected structures or patterns that emerge from location-based variation and manifest at specific scales resolutions. To identify dominant features, we propose a sequential application multiresolution decomposition variogram function estimation. Multiresolution separates into additive components, in this way enables the recognition their features. A dedic...

conclusions pine trees can be used as a worthy bio-indicator for hms pollution monitoring in the ambient air in areas with extensive vegetation of pine trees. results iron had the highest concentration (345.0053 mg/kg) in leaves when compared with other hms. the concentration of zn, cu, pb and cd were 26.1384, 5.5905, 2.9963 and 0.7383 mg/kg, respectively. spatial mapping indicated that industr...

imized?" In a very brief introductory chapter, the author sketches the problems which have arisen within the last decade with regard to the marking of students in schools and colleges. "From the studies of J. M. Cattell (1905), W. S. Hall (190G), Max Meyer (1908), W. F. Dearborn (1910), A. G. Smith (1911), A. G. Steele (1911), W. T. Foster (1911), and others who have discussed various phases of...