Dünya Gıda, cilt.1, ss.84-88, 2012 (Hakemli Dergi)
In this study, the determination of contamination levels of lead (Pb) and cadmium (Cd) in durum wheat grown surrounding of the highway between Beyşehir and Isparta, characterized by a traffic density is 3915 vehicle in summer and 2304 in 2009 per 24 hours, was intended after super gasoline was banned in Turkey, 2006. For this purpose five distances from the highway edge (10, 20, 40, 60 and 80 m) were established where the wheat samples were taken and the concentrations of lead and cadmium were determined in the studied material by atomic absorption spectrometry. It was shown that differences in concentrations of lead and cadmium in wheat were statistically significant. When distance 10, 20, 40, 60 and 80 m from highway increased, lead concentrations were determined as 0.553, 0.512, 0.417, 0.328 and 0.256 mg/kg, respectively and cadmium concentrations were determined as 0.046, 0.040, 0.018, 0.013, 0.007 mg/kg, respectively. In addition, correlation between the lead and cadmium contamination and distance from highway is –0.938 and –0.918, respectively. Although the heavy metals concentration is considerably under risk value set by JECFA (Joint Expert Committee on Food Additive), wheat grown on the highway edge exposure heavy metal pollution.