A study on soil bacterial population in steel company and some related area in Erbil city in relation to heavy metal pollution
Joint Authors
Khidr, Nashmil Said
Amin, Niga Uthman Hama
Khidr, Shilan Mustafa
Source
ZANCO Journal of Pure and Applied Sciences
Issue
Vol. 28, Issue 5 (31 Oct. 2016), pp.101-116, 16 p.
Publisher
Salahaddin University-Erbil Department of Scientific Publications
Publication Date
2016-10-31
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Present study was conducted to investigate the impact of heavy metal pollution from Erbil steel company on soil physicochemical properties and bacterial population of surrounding soils.
The highest bulk density, pH and total organic carbon were 0.774±0.001, 9.31±0.032, 36.447±0.005 g.Kg-1 respectively were observed inside Erbil steel company.
The concentrations of all the metals were higher within the steel company in comparison with the other sites and the maximum values were 292±0.577, 8.4±0.208, 259±0.577 and 7480±0.866 ppm for Pb, Cd, Cu and Zn respectively.
The concentrations of Cd, Cu and Zn in Erbil steel company soil are exceeded the permissible limits for soil.
The isolated bacterial genera in Erbil steel company soil were Acinetobacter, Bacillus, Micrococcus, Neisseria, Pseudomonas and Staphylococcus.
These isolates are considered tolerant to alkaline pH and elevated levels of heavy metals from the steel company.
Minimum Arthrobacter spp.
(0.32×105), proteolytic bacteria (0.57×105) and asymbiotic nitrogen-fixers (0.12×105) cfu.g-1 dry soil were in the soil of steel company and minimum bacterial population was observed in Nawroz soil (0.05×107) cfu.g-1 dry soil followed by Erbil steel company soil (0.06×107) cfu.g-1 dry soil.
The relationships between the heavy metals and the microbial populations were negative.
The correlations among: pH, total organic C, Cu, Pb and Zn were significantly positive.
American Psychological Association (APA)
Khidr, Nashmil Said& Khidr, Shilan Mustafa& Amin, Niga Uthman Hama. 2016. A study on soil bacterial population in steel company and some related area in Erbil city in relation to heavy metal pollution. ZANCO Journal of Pure and Applied Sciences،Vol. 28, no. 5, pp.101-116.
https://search.emarefa.net/detail/BIM-756694
Modern Language Association (MLA)
Khidr, Nashmil Said…[et al.]. A study on soil bacterial population in steel company and some related area in Erbil city in relation to heavy metal pollution. ZANCO Journal of Pure and Applied Sciences Vol. 28, no. 5 (2016), pp.101-116.
https://search.emarefa.net/detail/BIM-756694
American Medical Association (AMA)
Khidr, Nashmil Said& Khidr, Shilan Mustafa& Amin, Niga Uthman Hama. A study on soil bacterial population in steel company and some related area in Erbil city in relation to heavy metal pollution. ZANCO Journal of Pure and Applied Sciences. 2016. Vol. 28, no. 5, pp.101-116.
https://search.emarefa.net/detail/BIM-756694
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 114-116
Record ID
BIM-756694