DETECTION OF A CARCINOGEN, 2-AMINO-1-METHYL-6-PHENYLIMIDAZO [4,5-B]PYRIDINE, IN AIRBORNE PARTICLES AND DIESEL-EXHAUST PARTICLES

A carcinogen, 2-amino-1-methyl-6-phenylimidazo [4,5-b]-pyridine (PhIP) , has been measured in airborne particles, diesel-exhaust particles, a nd incineration ash from garbage-burning plants. PhIP was found in all kinds of samples. In the light of the present results, together with the previous findings that PhIP was present in cooked foods and cigare tte smoke, PhIP is likely to be, an ubiquitous environmental pollutant . These observations also suggest that PhIP may be formed through the combustion process.