title: Neutron activation analysis of thermal power plant ash and surrounding area soils.
abstract: Elemental concentrations of As, Cd, Co, Cr, Fe, Hg, Mo, Ni, Se, and Zn have been determined in fly and bottom ash collected from Syrian power plants fired by heavy oil and natural gas using instrumental neutron activation analysis. The results showed that all elements were more concentrated in fly ash than in the fly ash; there was a clear increasing trend of the elemental concentrations in the fly ash along the flue gas pathway. The annual emission of elements was estimated. Elemental concentrations were higher inside the campus area than in surrounding areas, and the lowest values were found in natural-gas-fired power plant. In addition, the levels have decreased as the distance from power plant campus increases. However, the levels in the surrounding villages were within the Syrian standard for agriculture soil.
authors.affiliation: Department of Protection and Safety, Atomic Energy Commission of Syria, P. O. Box 6091, Damascus, Syria, prscientific1@aec.org.sy.
authors.forename: M S
authors.initials: MS
authors.lastname: Al-Masri
authors.forename: Kh
authors.initials: Kh
authors.lastname: Haddad
authors.forename: N
authors.initials: N
authors.lastname: Alsomel
authors.forename: A
authors.initials: A
authors.lastname: Sarhil
mesh_terms: D000383:Agriculture / Q000592:standards; D060729:Coal Ash / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis*; D009501:Neutron Activation Analysis / Q000379:methods*; D011210:Power Plants; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*; D013593:Syria
chemical_list: D060729:Coal Ash; D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants