%0 Report %K Indoor environment department %K Exposure and health effects %K Dietary exposure %K Gc-ms analysis %K Isotope dilution %K Polycyclic aromatic hydrocarbons (PAHs) %K Wheat %K Environmental Chemistry, Exposure and Risk Group %A Reiko Kobayashi %A Robert A Okamoto %A Randy L Maddalena %A Norman Y Kado %D 2006 %G eng %I Lawrence Berkeley National Laboratory %T Field Measurement of polycyclic aromatic hydrocarbons in wheat grain grown in Sacramento and San Joaquin Valleys, California %1

7.1

%2 LBNL-60312 %X

Wheat grain samples from five different counties in California were analyzed for 2- to 6-ring polycyclic aromatic hydrocarbons (PAHs). PAH profiles were similar for all the samples, but concentrations differed by location. Major PAHs present in the California grain were mainly gas-phase PAHs. Diesel-fueled harvesting operations did not appear to contribute to observed PAH concentration in grain. PAHs in grain most likely came from atmospheric deposition.