A rapid method was developed to measure benz(a)anthracene (BaA) and benzo(a)pyrene (BaP) in auto exhaust tar, gasoline, and crankcase oil. Nine other polynuclear aromatic hydrocarbons were also included in the measurement. These included: pyrene, chrysene, triphenylene, methyl BaA, dimethyl BaA, benzo(e)pyrene (BeP), methyl BaP, methyl BeP, and benzo(g,h,i)perylene. The method can also be extended to other PNA hydrocarbons, such as benzofluoranthenes, dibenzanthracenes, anthanthracenes, anthanthrene, and coronene. In addition, methodology to determine the total PNA content of auto exhaust tar was developed. A third major accomplishment was the development of a quantitative method to determine individual phenols in the aqueous condensates produced along with exhaust tar. The methods used gas chromatography for separation and UV, radioactive measurement, or mass spectroscopy for identification.