Journal of Exposure Analysis and Environmental Epidemiology

FIGURE 4

FROM:

Evaluation of ambient air concentrations of polycyclic aromatic hydrocarbons in Germany from 1990 to 1998

REGINA FERTMANN, IRENE TESSERAUX, MICHAEL SCHÜMANN and HERMANN NEUS

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Figure 4.

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Median concentrations of BeP, BghiP, BaP, BaA, COR and DBA in ng/m3 from North Rhine-Westphalia, 1991–1997. Each substance with 45less than or equal toNless than or equal to122/year.

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