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Title (Primary) The lasting effect of limonene-induced particle formation on air quality in a genuine indoor environment
Author Rösch, C.; Wissenbach, D.K.; von Bergen, M.; Franck, U.; Wendisch, M.; Schlink, U.;
Journal Environmental Science and Pollution Research
Year 2015
Department IMMU; SUSOZ; METABOX; STUDIEN;
Volume 22
Issue 18
Language englisch;
POF III (all) F11; T13;
Keywords Indoor air quality; Ozonolysis; Particle formation; Limonene; Particle growth; Indoor environment
UFZ wide themes RU3;
Abstract Atmospheric ozone-terpene reactions, which form secondary organic aerosol (SOA) particles, can affect indoor air quality when outdoor air mixes with indoor air during ventilation. This study, conducted in Leipzig, Germany, focused on limonene-induced particle formation in a genuine indoor environment (24 m3). Particle number, limonene and ozone concentrations were monitored during the whole experimental period. After manual ventilation for 30 min, during which indoor ozone levels reached up to 22.7 ppb, limonene was introduced into the room at concentrations of approximately 180 to 250 μg m−3. We observed strong particle formation and growth within a diameter range of 9 to 50 nm under real-room conditions. Larger particles with diameters above 100 nm were less affected by limonene introduction. The total particle number concentrations (TPNCs) after limonene introduction clearly exceed outdoor values by a factor of 4.5 to 41 reaching maximum concentrations of up to 267,000 particles cm−3. The formation strength was influenced by background particles, which attenuated the formation of new SOA with increasing concentration, and by ozone levels, an increase of which by 10 ppb will result in a six times higher TPNC. This study emphasizes indoor environments to be preferred locations for particle formation and growth after ventilation events. As a consequence, SOA formation can produce significantly higher amounts of particles than transported by ventilation into the indoor air.
ID 16153
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16153
Rösch, C., Wissenbach, D.K., von Bergen, M., Franck, U., Wendisch, M., Schlink, U. (2015):
The lasting effect of limonene-induced particle formation on air quality in a genuine indoor environment
Environ. Sci. Pollut. Res. 22 (18), 14209 - 14219