Evidence of the rôle of indirect photochemical processes in the formation of atmospheric sulphate particulate

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Abstract

The mass concentration of atmospheric sulphate particles was determined during daylight for relatively short time intervals. Characteristics of atmospheric aerosols and trace gases and some meteorological parameters were measured simultaneously. It was found that in summertime the sulphate concentration, and the logarithm of the mole ratio of sulphate to sulphur dioxide, correlated well with the intensity of solar radiation in wavelengths 0·29-0·50 μm and with the temperature. It is expected, on the basis of these results, that sulphate particle formation is activated by some primary photochemical reaction followed by secondary thermal processes.

Original languageEnglish
Pages (from-to)429-434
Number of pages6
JournalJournal of Aerosol Science
Volume4
Issue number6
DOIs
Publication statusPublished - Nov 1973

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ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Atmospheric Science

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