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Table 3.4.5.
The concentrations (units as Table 3.1.1) of particulate polycyclic aromatic compounds (PAC) and mutagenic activity and other inorganic components during an local episode on 5 December 1996 with increasing mutagenic activity* and comparison with the 1996 mean levels.
 

 

Impact of Regulations of Traffic Emissions on PAH Level in the Air
Compound 5 Dec. Conc. Ratio
5 Dec./Mean 		Compound 5 Dec. Conc Ratio
5 Dec./Mean
Dibenzothiophene 0.09 0.9 Benzo(a)pyrene 4.0 1.8
Phenanthrene 2.5 1.7 Perylene 0.5 1.1
Anthracene 0.6 1.5 Indeno(1,2,3-cd)pyrene 2.7 1.4
2-methylphenanthrene 1.7 1.4 Dibenz(ac+ah)anthracene 0.15 1.2
3-methylphenanthrene 1.0 1.4 Benzo(ghi)perylene 10 2.0
1-methylphenanthrene 0.98 1.3 Anthanthrene 1.4 2.2
4,5-methylene-+9-methylphenanthrene 2.2 1.8 Coronene 9.6 2.6
Methylphenanthrenes (total) 5.9 1.5 Anthraquinone 2.1 0.5
Fluoranthene 8.3 1.6 Benzanthrone 2.5 0.7
Pyrene 14 1.6 TA98+S9 115 2.4
Benzo(b)naphto(2,1-d)thiophene 0.6 1.4 TA98-S9 149 4.4
Benzo(ghi)fluoranthene+benzo(c)phenanthrene 6.4 1.8 TA98NR 67 4.4
Cyclopenteno(cd)pyrene 19 7.8 NO 122 1.2
Benz(a)anthracene 6.4 2.1 Gas NOy 146 1.1
Chrysene+triphenylene 7.4 1.8 SO2 2.9 1.1
Benzo(b+j+k)fluoranthene 9.6 1.5 CO 0.6 0.4
Benzo(a)fluoranthene 1.3 2.0 Ozone 3.4 0.3
Benzo(e)pyrene 4.3 1.4 Soot 68 1.5


* (Bep+IP)/TA98-S9: 0.05, (BeP+IP)/TA98+S9: 0.06, (BeP+IP)/TA98NR: 0.011.