Personal exposures to VOC in the upper end of the distribution—relationships to indoor, outdoor and workplace concentrations

Evaluation of relationships between median residential indoor, indoor workplace and population exposures may obscure potential strategies for exposure reduction. Evaluation of participants with personal exposures above median levels in the EXPOLIS study in Athens, Helsinki, Oxford and Prague illustrated that these participants frequently showed a different relationship to indoor and workplace levels than that shown by the population median. Thus, prioritization of environments for control measures based on median exposures may exclude important areas where effectively focused control measures are possible, and may therefore have little impact on the highest and most harmful exposures. Further, personal exposures at the upper end of the distribution may exceed the US EPA inhalation reference concentration (Rfc), illustrated here using hexane, naphthalene and benzene. For example upper 90th percentile personal exposures to benzene in Athens and Prague were 64 and 27 μg m−3 with peak exposures of 217 and 38 μg m−3, respectively for non-ETS exposed participants relative to an Rfc of 30 μg m−3. Strategies to reduce exposures to individual compounds, therefore, may benefit from focus on the high end of the distribution to identify activities and behaviors that result in elevated exposures. Control strategies targeting activities that lead to exposures in the upper end of the distribution would reduce the variability associated with population median values by bringing the upper end of the exposure distribution closer to median values. Thus, compliance with health-based standards would be more protective of the higher exposed fraction of the population, in whom health effects would be more expected.

Schlagwörter

Volatile organic compounds, Indoor sources, Exposures, Microenvironment concentrations, Hexane, Benzene, Naphthalene

Fachgebiet (DDC)

300 - Sozialwissenschaften, Soziologie, Anthropologie
610 - Medizin und Gesundheit

Projekt

Veranstaltung

Startdatum der Ausstellung

Enddatum der Ausstellung

Startdatum der Konferenz

Enddatum der Konferenz

Datum der letzten Prüfung

ISBN

ISSN

1352-2310
0004-6981

Sprache

Englisch

Während FHNW Zugehörigkeit erstellt

Nein

Zukunftsfelder FHNW

Publikationsstatus

Veröffentlicht

Begutachtung

Peer-Review der ganzen Publikation

Open Access-Status

Closed

Lizenz

Zitation

EDWARDS, Rufus D., Christian SCHWEIZER, Matti JANTUNEN, Hak Kan LAI, Lucy BAYER-OGLESBY, Klea KATSOUYANNI, Mark NIEUWENHUIJSEN, Kristiina SAARELA, Radim SRAM und Nino KÜNZLI, 2005. Personal exposures to VOC in the upper end of the distribution—relationships to indoor, outdoor and workplace concentrations. Atmospheric Environment. 2005. Bd. 39, Nr. 12, S. 2299–2307. DOI 10.1016/j.atmosenv.2004.12.026. Verfügbar unter: https://irf.fhnw.ch/handle/11654/45651

Komplettanzeige