Contamination on Zinc and Aluminum Surfaces After Extended Urban Exposures

  • G. B. Munier
  • L. A. Psota
  • B. T. Reagor
  • B. Russiello
  • J. D. Sinclair


Water soluble contaminants on electromechanical telephone switching equipment exposed for up to 40 years to the New York City environment have been analyzed by a comination of methods. Samples were collected from surfaces by three successive extractions with filter paper squares moistened with distilled water. Elements having atomic number greater than 11 were identified by energy dispersive X-ray analysis. Selected anions were identified with microchemical tests and infrared spectroscopy and determined quantitatively with ion selective electrodes. Nitrate and sulfate concentrations of samples from one location were measured with nitrate and lead ion selective electrodes (the latter for titration of sulfate). Samples from several locations were analyzed with a chloride selective electrode. On zinc surfaces, chloride concentrations averaged 27 μg/cm2 for typical locations, and sulfate and nitrate concentrations averaged 48 and 6 μg/cm2 respectively. On aluminum surfaces, chloride concentrations averaged <2 μg/cm2, and sulfate and nitrate concentrations averaged 25 and 3 μg/cm2, respectively.


Aluminum Surface Nickel Sulfate Zinc Surface Minimum Relative Humidity Critical Relative Humidity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    E. J. Bauer, B. T. Reagor, and C. A. Russell, ASHRAE J., p. 53 (October, 1973).Google Scholar
  2. 2. (a).
    C. J. Weschler, paper number 225 presented at the annual meeting of the American Chemical Society, Miami, September, 1978;Google Scholar
  3. 2. (b).
    C. J. Weschler and M. V. Walker, to be published.Google Scholar
  4. 3.
    R. K. Patterson and J. Wagman, J. Aerosol Sci., 8, 269 (1977).CrossRefGoogle Scholar
  5. 4.
    B. P. Leaderer, J. Air Pollut. Contr. Assoc, 28(4), 321 (1978).Google Scholar
  6. 5.
    C. J. Weschler, Environ. Sci. Technol., 12(8), 923 (1978).CrossRefGoogle Scholar
  7. 6.
    R. P. Frankenthal and W. H. Becker, paper number 246 presented at the Electrochemical Society Meeting, Pittsburgh, October 15–20, 1978.Google Scholar
  8. 7.
    D. W. Rice, P. B. P. Phipps, and R. F. Tremoureuz, paper number 9 presented at the Electrochemical Society Meeting, Philadelphia, May 8–13, 1977.Google Scholar
  9. 8.
    J. D. Sinclair, J. Electrochem. Soc, 5, 734 (1978).CrossRefGoogle Scholar
  10. 9.
    R. P. Buck, Anal. Chem., 50(5), 17R (1978).CrossRefGoogle Scholar
  11. 10.
    W. Gallay, H. Egan, J. L. Monkman, R. Truhaut, P. W. West, and G. Widmark, “Environmental Pollutants Selected Analytical Methods (Scope 6),” pp. 236, 248, Ann Arbor Science Publishers Inc., Ann Arbor, Michigan.Google Scholar
  12. 11.
    H. Clyster and F. Adams, Anal. Chim. Acta, 92, 251 (1977).CrossRefGoogle Scholar
  13. 12.
    J. W. Ross and M. S. Frant, Anal. Chem., 41, 967 (1969).CrossRefGoogle Scholar
  14. 13.
    “Air Quality Data for Nonmetallic Inorganic Ions 1971 Through 1974” from the National Air Surveillance Networks, EPA-600/4–77–003, January, 1977.Google Scholar
  15. 14.
    Kh. Balarev, Kh. Stoeva, Kh. Stoev, God. Vissh. Khim. -Tekhnol. Inst., Burgas. Bulg., 10(10), 623 (1973).Google Scholar

Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • G. B. Munier
    • 1
  • L. A. Psota
    • 1
  • B. T. Reagor
    • 1
  • B. Russiello
    • 1
  • J. D. Sinclair
    • 1
  1. 1.Bell Telephone LaboratoriesHolmdelUSA

Personalised recommendations