Testing Information

Testing Status of Agents at NTP

Asphalt Table 8

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Table 8. Summary of data from Reinke and Swanson [1993].


Content (mg/ml)

PAHs Sulfur heterocyclics
Asphalt fume condensates <3-ring >3-ring > to 3-ring MIa

Field-generated 7.0 (84)b 0.8 (9) 0.5 (7) >0 & <1
Lab-generated at 149°C (300F) 6.9 (51) 2.6 (19) 4.0 (30) 5.3
Lab-generated at 316°C (600°F) 0.5 (7) 2.8 (38) 4.1 (55) 8.3

a MI = mutagenicity index; raw data not provided. Positive control had an MI of 4.6

b % of PAH in sulfur heterocyclics