Volume 18, Issue 68 (summer 2014)                   jwss 2014, 18(68): 243-254 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Karimi H, Fotovat A, Lakzian A, Haghnia G H, Shirani M. Identification of Hotspots of Pb by Using Global and local Moran Index in Urban and Suburban Soils of Mashhad Plain. jwss 2014; 18 (68) :243-254
URL: http://jstnar.iut.ac.ir/article-1-2791-en.html
, skarimi343@yahoo.com
Abstract:   (15363 Views)
In recent years, due to the increased population, urbanization and changes in human consumption patterns, urban, industrial and agricultural soils have been exposed to various pollutants such as heavy metals. The objective of this research was to identify hotspots of Pb by using global and local Moran Indices in urban and suburban soils of Kashafrood catchment. A total of 261 surface soil samples (0-15 cm deep) were taken using irregular girding network method and their total Pb concentrations were measured. The positive Moran index at confidence level of more than 99 percent showed the spatial clusters between observations. On the basis of local Moran index results, 15 samples were introduced as hotspots (high-high value) located southeast of Mashhad plain. Exclusion of extreme values resulted in the addition of high-high cluster (hotspots) leading to the extension of these areas to the West of the Mashhad city. These areas are introduced as hotspots due to the urban land use, the direction of prevailing wind, and the area being close to Mashhad airport.
Full-Text [PDF 370 kb]   (3081 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2014/09/16 | Accepted: 2014/09/16 | Published: 2014/09/16

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb