Health Assessment Document for Diesel Emissions - NSCEP | US ...
Health Assessment Document for Diesel Emissions - NSCEP | US ...
Health Assessment Document for Diesel Emissions - NSCEP | US ...
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Nitro-PAH•<br />
Table 2-10. Concentrations of nitro-polycyclic aromatic hydrocarbons identified<br />
in a light-duty diesel (LDD) particulate extract<br />
4-Nitrobiphenyl<br />
2-Nitrofluorene<br />
2-Nitroanthracene<br />
9-N itroanthracene<br />
9-Nitrophenanthrene<br />
3-Nitrophenanthrene<br />
2-Methyl-1-nitroanthracene<br />
1-Nitrofluoranthene<br />
7-N itrofluoranthene<br />
3-Nitrofluoranthene<br />
8-Nitrofluoranthene<br />
1-Nitropyrene<br />
6-Nitrobenzo[ a ]pyrene<br />
1 ,3-Dinitropyreneb<br />
1 , 6-Dinitropyreneb<br />
1 , 8-Dinitropyreneb<br />
2, 7-Dinitrofluorenec<br />
2, 7-Dinitro-9-fluorenonec<br />
Concentration<br />
(p.g/g of particles)<br />
2.2<br />
1.8<br />
4.4<br />
1.2<br />
1.0<br />
4.1<br />
8.3<br />
1.8<br />
0.7<br />
4.4<br />
0.8<br />
18.9; 75b<br />
2.5<br />
0.30<br />
0.40<br />
0.53<br />
4.2; 6.0<br />
8.6; 3.0<br />
'From Campbell and Lee (1984) unless noted otherwise. Concentrations recalculated from p.g/g of extract to<br />
p.g/g_of particles using a value of 44"% <strong>for</strong> extractable material (w/w).<br />
hFrom Paputa-Peck et al. (1983).<br />
'From Schuetzle (1983).<br />
1 same fraction. Oxy-PAHs are nonmutagenic or very weakly mutagenic; this explains the<br />
2 relatively low interest in this group of compounds. The most detailed study of oxy-P AHs was<br />
3 published by Schuetzle et al. (1981), who identified more than 100 compounds. A large number<br />
4 of oxy-PAHs in the molecular weight range of 182 to 272 were also identified by Tong et al.<br />
5 (1984). The main components identified by Tong and co-workers in particulate matter extracts<br />
6 ofthree LDD cars (Volkswagens) were 9-fluorenone, anthraquinone, 4H-<br />
7 cyclopehta[ de.f]phenanthrene-4-one, 9-phenanthrene aldehyde, benzo[ de ]anthracene-? -one, and<br />
8 benzo[cd]pyrene-6-one. These components are present at concentrations of 30 to 300 f.l.g/g<br />
9 particles. Some ofthese oxy-PAHs are <strong>for</strong>med during sampling (Levsen, 1988).<br />
10<br />
11 2.3.2.3.6. Polar polycylic aromatic hydrocarbon derivatives. According to Schuetzle et al.<br />
12 (1985), although 65% to 75% of the directly acting mutagenicity (as tested by Ames S.<br />
13 typhimurium assay) <strong>for</strong> LDD particulate extracts is associated with the fraction of moderate<br />
2/1198 2-22 DRAFT--DO NOT CITE OR QUOTE
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