Spatial variations in estimated chronic exposure to traffic-related air pollution in working populations: A simulation

Table 3 Summary of NO₂ levels measured in personal monitoring studies

Author	Location	Number of study subjects	Total personal exposure to NO ₂ (u g/m³)	Ambient NO₂ (u g/m³)	Study group
Quackenboss et al (1986) [54]	Wisconsin	350	16 – 44	12 – 17	general population
Spengler et al (1994) [55]	Los Angeles basin	682	64	70	general population 50^th percentile
Levy (1998) [53]	International (18 cities)	14 – 117	22 – 103	24 – 105	Adults
Monn et al (1998) [39]	Switzerland	500	27	31	working adults
Rotko et al (2001) [5]	Helsinki	176	25	24	Adults
Kousa et al (2001) [52]	Basel, Prague	85	30 – 43	36 – 61	urban adults
Lai et al (2004) [41]	Oxford, UK	50	29	27	Adults
Nerriere et al (2005) [56]	France	~250	15 – 42	17 – 75	adults and children

ISSN: 1476-072X