Chemical and Biological Characterization of Organic Material from Gasoline Exhaust Particles

Tomas Alsberg, Ulf Stenberg, Roger Westerholm, Michael Stranden, Ulf Rannug, Annica Sundvall, Lennart Romert, Vibeke Bernson, Bertll Pettersson, Rune Toftgård, Bo Franzén, Maria Jansson, Jan-Ake Gustafsson, Karl Erik Egebäck, Gunnar Tejle

Research output: Contribution to journalArticlepeer-review

135 Scopus citations

Abstract

Unfractionated gasoline exhaust particle extracts, silica gel fractions, and recombined fractions were analyzed with capillary gas chromatography-mass spectrometry and tested in three biological test systems based on different end points, namely, genotoxicity (Ames Salmonella mutagenicity test), aryl hydrocarbon hydroxylase (AHH) inducibility (2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) receptor affinity test), and cytotoxicity to pulmonary alveolar macrophages (PAM cytotoxicity test). Fraction I contained aliphatic hydrocarbons and showed no activity in the biological tests. Fraction II contained PAH and showed mutagenicity in the presence of a metabolizing system (S9), TCDD-receptor affinity, and PAM cytotoxicity. Fractions III and IV gave high effects in all bioassays. In these fractions polynuclear aromatic ketones are the most abundant species. Fraction V contained the most polar species, including nitrogen-containing compounds, and showed a much weaker activity in the bioassays as compared to fractions III and IV.

Original languageEnglish (US)
Pages (from-to)43-50
Number of pages8
JournalEnvironmental Science and Technology
Volume19
Issue number1
DOIs
StatePublished - Jan 1 1985

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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