Population Exposure to Benzene: One Day Cross Sections in Six European Cities

This paper describes the experimental methodology and basic results of the PEOPLE project (Population Exposure to Air Pollutants in Europe). Measurement campaigns were completed in six cities, namely: Brussels and Lisbon (22 October 2002), Bucharest and Ljubljana (27 May 2003), Madrid (3 December 2003) and Dublin (28 April 2004). In general human exposure to benzene was higher than concentrations reported at urban background monitoring sites. Traffic was the dominant source of benzene in all six cities that were studied. The highest exposure levels from the commuting groups were car users. The control group, with no influence from commuting or smoking, reported concentrations closer to the background level of the city. The smoking group had the highest level of exposure. The level of exposure of children was similar to that of the commuting groups. Some individuals and locations reported extremely high concentrations, often due to unusual proximity to known emission sources. Indoor locations that were influenced by smoking sources or with free access to busy streets reported relatively high concentrations. The highest indoor concentrations were measured in bars and inside motor vehicles. When considering the six cities together, a linear relationship was evident between ambient levels and human exposure. Daily median values of human exposure for non-smoking commuters were 1.5 times the level of urban background.

PEREZ BALLESTA Pascual;  FIELD Robert;  BAEZA-CARACENA Antonia;  CONNOLLY Richard;  CAO Natale;  DE SAEGER Emile; 

2006-11-03

PERGAMON-ELSEVIER SCIENCE LTD

JRC31733

https://publications.jrc.ec.europa.eu/repository/handle/JRC31733,