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Study of trace elements in wet atmospheric precipitation in Tehran, Iran.

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اقرأ على الانترنت اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Kamani H;Kamani H; Hoseini M; Safari GH; Jaafari J; Mahvi AH
  • المصدر:
    Environmental monitoring and assessment [Environ Monit Assess] 2014 Aug; Vol. 186 (8), pp. 5059-67. Date of Electronic Publication: 2014 Apr 10.
  • نوع النشر :
    Journal Article; Research Support, Non-U.S. Gov't
  • اللغة:
    English
  • معلومة اضافية
    • المصدر:
      Publisher: Springer Country of Publication: Netherlands NLM ID: 8508350 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1573-2959 (Electronic) Linking ISSN: 01676369 NLM ISO Abbreviation: Environ Monit Assess Subsets: MEDLINE
    • بيانات النشر:
      Publication: 1998- : Dordrecht : Springer
      Original Publication: Dordrecht, Holland ; Boston : D. Reidel Pub. Co., c1981-
    • الموضوع:
      Air Pollutants/*analysis ; Rain/*chemistry ; Snow/*chemistry ; Trace Elements/*analysis; Atmosphere/chemistry ; Cities ; Climate ; Environmental Monitoring/methods ; Industry ; Iran ; Water Pollutants, Chemical/analysis
    • نبذة مختصرة :
      In this study, measurements of the trace metals Zn, Cd, Cr, Ni, Pb, Cu, Fe and Al were performed on 53 wet atmospheric precipitation samples (snow and rainwater) collected at a central site of Tehran. Samples were collected using a bulk sampler equipped with a high-density polyethylene funnel from November to May in 2011 and 2012 on the roof of a building in the city centre. Trace metals in the filtered samples were measured with ICP-MS. Statistical analysis of the results revealed that Al, which is principally a crustal-derived element, was the highest mean measured concentration. The pH ranged from 4.2 to 7.1 with a mean value of 5.1. Crustal enrichment factors (EFc) related to the relative abundance of elements in crustal material was calculated using Al as reference crustal. EFc calculations indicated that samples were not enriched with Fe and Cr but were, fairly to extremely, enriched with Zn, Cd, Ni, Pb and Cu. Factor component analysis with varimax-normalized rotation was conducted to find the probable sources of the measured species. This resulted in two factors with eigenvalues greater than unity. Factor 1 showed an anthropogenic source, mostly industrial combustion and local traffic emissions, for Zn, Cd, Ni, Pb, and Cu while factor 2 showed a crustal contribution for Al, Fe and Cr.
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    • الرقم المعرف:
      0 (Air Pollutants)
      0 (Trace Elements)
      0 (Water Pollutants, Chemical)
    • الموضوع:
      Date Created: 20140411 Date Completed: 20141027 Latest Revision: 20211021
    • الموضوع:
      20240628
    • الرقم المعرف:
      10.1007/s10661-014-3759-9
    • الرقم المعرف:
      24718928