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Table 3.3.2.
Comparison of the concentrations (±2s) of particulate PAH* (ng/m3) and particulate (rev./m3) and inorganic components at different locations and different years.
 

 

Impact of Regulations of Traffic Emissions on PAH Level in the Air
Compound Street 1996 Roof level
1976-1982 		Suburban area
1976-1982 		Ratio:
Roof (1976-82) to
street 1996**
Benzo(bjk)fluoranthenes 6.5 ± 1.4 3 3 0.46
Benzo(e)pyrene 3.1 ± 0.7 1.8 1.2 0.39
Indeno(1,2,3-cd)pyrene 2.0 ± 0.4 1.9 1.4 0.70
Benzo(ghi)perylene 5.1 ± 1.1 3.2 1.7 0.33
Coronene 3.8 ± 1.0 1.8 0.8 0.21
S (µg/m3) 2.8 ± 1.1 3.4 1.9 1.20
K (µg/m3) 0.37 ± 0.17 0.16 0.16 0.44
V (ng/m3) 10 ± 4 19 17 1.88
Mn (µg/m3) 0.15 ± 0.11
Ni (ng/m3) 5 ± 2 6.8 6.2 1.19
Zn (µg/m3) 0.14 ± 0.05
Br (ng/m3) 7.3± 1.4
Pb (ng/m3) 32 ± 7 480 270 14.9
Cu (ng/m3) 78 ± 14
No. of samples 4 200 200


* From Table 3.1.1. 16 PAH samples.