caa a22 4500 467904286 CHVBK 20180406152829.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s10661-006-4940-6 doi (NATIONALLICENCE)springer-10.1007/s10661-006-4940-6 Characterization, Source Identification and Apportionment of Selected Metals in TSP in an Urban Atmosphere [Elektronische Daten] [Munir Shah, N. Shaheen, M. Jaffar] To understand the metal distribution characteristics in the atmosphere of urban Islamabad, total suspended particulate (TSP) samples were collected on daily 12 h basis, at Quaid-i-Azam University campus, using high volume sampler. The TSP samples were treated with HNO3/HClO4 based wet digestion method for the quantification of eight selected metals; Fe, Zn, Pb, Mn, Cr, Co, Ni and Cd by FAAS method. The monitoring period ran from June 2001 to January 2002, with a total of 194 samples collected on cellulose filters. Effects of different meteorological conditions such as temperature, relative humidity, wind speed and wind direction on selected metal levels were interpreted by means of multivariate statistical approach. Enhanced metal levels for Fe (930 ng/m3), Zn (542 ng/m3) and Pb (210 ng/m3) were found on the mean scale while Mn, Cr, Co and Ni emerged as minor contributors. Statistical correlation study was also conducted and a strong correlation was observed between Pb-Cr (r=0.611). The relative humidity showed some significant influence on atmospheric metal distribution while other meteorological parameters showed weak relationship with TSP metal levels. Regarding the origin of sources of heavy metals in TSP, the statistical procedure identified three source profiles; automobile emissions, industrial/metallurgical units, and natural soil dust. The metal levels were also compared with those reported for other parts of the world which showed that the metal levels in urban atmosphere of Islamabad are in exceedence than those of European industrial and urban sites while comparable with some Asian sites. Springer Science + Business Media, Inc., 2006 airborne metals nationallicence FAAS nationallicence multivariate analysis nationallicence TSP nationallicence urban atmosphere nationallicence islamabad nationallicence Shah Munir Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut Shaheen N. Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut Jaffar M. Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut Environmental Monitoring and Assessment Springer Netherlands 114/1-3(2006-03-01), 573-587 0167-6369 114:1-3<573 2006 114 10661 https://doi.org/10.1007/s10661-006-4940-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-4940-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shah Munir Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Shaheen N. Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Jaffar M. Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Springer Netherlands 114/1-3(2006-03-01), 573-587 0167-6369 114:1-3<573 2006 114 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer