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Table 3.3.1.
Comparison of the concentrations (±2s) of particulate azaarenes (N-PAC) (ng/m3), the particulate mutagenic activity (rev./m3) and inorganic components at different locations and different years at winter time.
 

 

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*
Quinoline 0.48 ± 0.13 0.4 0.11 0.84
Isoquinoline 0.54 ± 0.19
6-methylquinoline 1.6 ± 2.1
2,6- + 2,7-dimethylquinoline 0.41 ± 0.18 0.03 0.05 0.07
2,4-dimethylquinoline 0.42 ± 0.38 0.06 0.04 0.14
4-azafluorene 0.20 ± 0.10 0.025 0.02 0.12
7,8-benzoquinoline 0.23 ± 0.01 0.3 0.2 1.30
Acridine 0.3 ± 0.3
5,6-benzoquinoline + phenanthridine 1.0 ± 0.4 0.14 0.06 0.14
Benz(c)acridine 0.31 ± 0.02 0.17 0.09 0.55
(C17H11N) 0.9± 0.5
Dibenz(c,h)acridine 0.06 ± 0.04
Dibenz(a,c+a,h+a,j)acridine 0.24 ± 0.04 0.15 0.4 0.62
Sum of N-PAC (Mw > 178) 2.9 ± 1.0 0.8 0.8
NO (ppb) 100 ± 18
Gas NOy (ppb) 127 ± 19 170 1.34
SO2 (ppb) 2.5 ± 0.7 40 30 15.8
CO (ppm) 1.6 ± 0.3
Ozone (ppb) 7 ± 3
Soot (µg/m3) 40 ± 10 25 17 0.63
Particles (µg/m3) 102 ± 34 44 43 0.43
TA98+S9 (rev./m3) - total 32 ± 26
TA98+S9 (rev./m3) - basic fraction 10 ± 7
TA98-S9 (rev./m3) - total 20 ± 17
TA98-S9 (rev./m3) - basic fraction 108 ± 216
TA98NR (rev./m3) - total 11 ± 10
TA98NR (rev./m3) - basic fraction 18 ± 36
Wind speed (m/s) - outside city 7.1 ± 1.4
Temperature (°C) 5 ± 5
No. of samples 3-5 200 200