Non-methane hydrocarbon and aldehyde measurements in Budapest, Hungary

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During three summer measuring campaigns the atmospheric concentration of non-methane hydrocarbons and aldehydes were measured at two sites in Budapest. Two hundred and forty-five flask samples were analyzed for non-methane hydrocarbon concentration and hydrocarbon composition. For formaldehyde and acetaldehyde concentration 185 and 122 samples were analyzed, respectively. The total non-methane hydrocarbon concentration shows a characteristic diurnal variation with a peak between 6 a.m. and 9 a.m. At the two sites the average concentrations between 6 a.m. and 9 a.m. are 802 and 606 ppbC, respectively. Comparing the speciation of hydrocarbons in the air of Budapest with that measured in other cities we have realized a relative surplus in C6 alkanes which is balanced by the low contribution of C3-C4 alkanes. Both the formaldehyde and acetyldehyde concentration were found rather high. In the downtown the average concentrations are 10.4 and 4.4 ppb, while 3 km away from the center of the city the corresponding values are 28.0 and 5.8 ppb.

Original languageEnglish
Pages (from-to)2103-2110
Number of pages8
JournalAtmospheric Environment Part A, General Topics
Issue number10
Publication statusPublished - 1991



  • Urban measurements
  • aldehydes
  • non-methane hydrocarbons

ASJC Scopus subject areas

  • Pollution

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